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"content": "\u003cp>Bay Area residents were jolted awake by a magnitude 4.6 \u003ca href=\"https://www.kqed.org/earthquakes\">earthquake\u003c/a> early Thursday morning.\u003c/p>\n\u003cp>The U.S. Geological Survey reported the quake, which was centered about a mile from Boulder Creek in the Santa Cruz Mountains, around 1:40 a.m.\u003c/p>\n\u003cp>South Bay residents reported feeling the strongest tremors, with some saying they felt a sharp jolt followed by about 30 seconds of rolling and shaking. Across the Bay Area, the quake’s impacts were felt in San Francisco and Oakland, and as far north as Santa Rosa.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>It was originally recorded as a magnitude of 5.1, but was downgraded to 4.6 by the USGS.\u003c/p>\n\u003cp>Early reports indicated little damage and no injuries as a result.[aside postID=news_11999982 hero='https://cdn.kqed.org/wp-content/uploads/sites/10/2024/08/MyShakeUCBerkeley-1020x679.jpg']It’s not clear what fault the quake occurred on. The San Andreas Fault, which caused the 1989 Loma Prieta earthquake, and the Hayward Fault, which has spurred multiple smaller seismic events over the last year, both run through the area.\u003c/p>\n\u003cp>As of 8 a.m., no significant aftershocks have been reported. While any earthquake can be a foreshock of a larger one to come, the likelihood is generally quite low.\u003c/p>\n\u003cp>According to USGS, there’s about a 25% chance of a magnitude 3.0 or greater quake in the next week, but the likelihood of a stronger 4.0 magnitude quake in that time drops to just 3%.\u003c/p>\n\u003cp>\u003c/p>\n",
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"excerpt": "According to the U.S. Geological Survey, the tremors mean there’s about a 25% chance of another magnitude 3.0 or greater quake in the next week.",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>Bay Area residents were jolted awake by a magnitude 4.6 \u003ca href=\"https://www.kqed.org/earthquakes\">earthquake\u003c/a> early Thursday morning.\u003c/p>\n\u003cp>The U.S. Geological Survey reported the quake, which was centered about a mile from Boulder Creek in the Santa Cruz Mountains, around 1:40 a.m.\u003c/p>\n\u003cp>South Bay residents reported feeling the strongest tremors, with some saying they felt a sharp jolt followed by about 30 seconds of rolling and shaking. Across the Bay Area, the quake’s impacts were felt in San Francisco and Oakland, and as far north as Santa Rosa.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>It was originally recorded as a magnitude of 5.1, but was downgraded to 4.6 by the USGS.\u003c/p>\n\u003cp>Early reports indicated little damage and no injuries as a result.\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>It’s not clear what fault the quake occurred on. The San Andreas Fault, which caused the 1989 Loma Prieta earthquake, and the Hayward Fault, which has spurred multiple smaller seismic events over the last year, both run through the area.\u003c/p>\n\u003cp>As of 8 a.m., no significant aftershocks have been reported. While any earthquake can be a foreshock of a larger one to come, the likelihood is generally quite low.\u003c/p>\n\u003cp>According to USGS, there’s about a 25% chance of a magnitude 3.0 or greater quake in the next week, but the likelihood of a stronger 4.0 magnitude quake in that time drops to just 3%.\u003c/p>\n\u003cp>\u003c/p>\n\u003c/div>\u003c/p>",
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"title": "After 4.6 Earthquake Jolts Santa Cruz, Seismologists Double Down on MyShake Alerts",
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"content": "\u003cp>A blaring alarm woke Cian Dawson early Thursday morning. It was the MyShake phone app, alerting him to a 5.1 magnitude \u003ca href=\"https://www.kqed.org/news/12078438/4-6-magnitude-earthquake-in-santa-cruz-mountains-shakes-bay-area-awake\">earthquake\u003c/a> about to rock the region.\u003c/p>\n\u003cp>Dawson stayed in bed, thinking he wouldn’t have enough time to get under a table.\u003c/p>\n\u003cp>A few seconds later, the Berkeley resident’s room began to shake. “It made more sense to me to stay where I was,” Dawson told KQED.\u003c/p>\n\u003cp>The tremor \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/nc75337442/dyfi/responses\">near Boulder Creek\u003c/a> prompted the \u003ca href=\"https://myshake.berkeley.edu/\">MyShake phone app\u003c/a> and local agencies to alert hundreds of thousands of residents across the greater Bay Area and Central Coast. The USGS later downgraded the quake to a 4.6. More than 10,000 people reported the quake in the app, saying they felt light to moderate shaking, and there were two reports of destroyed buildings.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>In light of the relatively moderate-sized quake and a \u003ca href=\"https://www.kqed.org/news/12066087/the-m5-9-earthquake-alert-that-startled-the-bay-area-this-morning-was-a-false-alarm\">false alarm issued by the app\u003c/a> last year, some Bay Area residents have questioned whether agencies issue too many warnings and whether these alerts really make us safer. But seismologists argue they are important for protecting the public in the long run.\u003c/p>\n\u003cp>Dawson said there needs to be more outreach about how seriously to take the messaging, because people are beginning to train themselves to ignore the alerts.\u003c/p>\n\u003cp>“The ‘boy who cries wolf’ is a great way to describe people’s response when they don’t understand what the alert actually means,” Dawson said.\u003c/p>\n\u003cfigure id=\"attachment_2000581\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"wp-image-2000581 size-full\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/04/BoulderCreekSantaCruzGetty.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/04/BoulderCreekSantaCruzGetty.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/04/BoulderCreekSantaCruzGetty-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/04/BoulderCreekSantaCruzGetty-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/04/BoulderCreekSantaCruzGetty-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Big Basin Redwoods State Park on Nov. 5, 2020. \u003ccite>(Carolyn Cole/Los Angeles Times via Getty Images)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>Angie Lux, a scientist specializing in earthquake early warnings at the UC Berkeley Seismological Laboratory, said she thought the alert worked well, as it reached its ultimate goal of protecting lives and reducing injuries. Lux said the alert is sent to everyone at once, and the further you are away from the epicenter, the longer you will have to act.\u003c/p>\n\u003cp>“For the people that are right next to the epicenter, they’re not going to receive much warning,” Lux said.\u003c/p>\n\u003cp>Evan Hirakawa lives in Scott’s Valley, just a few miles away from the source of Thursday’s quake. The USGS research geophysicist said he felt the quake first, then his phone pinged.[aside postID=news_11999982 hero='https://cdn.kqed.org/wp-content/uploads/sites/10/2024/08/MyShakeUCBerkeley-1020x679.jpg']“It was pretty intense at my house,” Hirakawa said. “The shake alert kind of worked, but it was too close for it to really benefit me.”\u003c/p>\n\u003cp>Hirakawa said there’s evidence that indicates the earthquake likely took place on a fault that hasn’t ruptured in a long time — the Zayante Fault in Santa Cruz County, which sits roughly between two major fault systems: the San Andreas and the San Gregorio.\u003c/p>\n\u003cp>“We have [Zayante] labeled in our databases as maybe it’s inactive now,” Hirakawa said. “It was active thousands of years ago, but we haven’t seen a lot of historical earthquakes on it.\u003cem>”\u003c/em>\u003c/p>\n\u003cp>While this shaking may seem like an outlier, Hirakawa said he doesn’t think Thursday’s quake “is a foreshock to something bigger.” But, he said, it’s still worth paying attention to early warning messages, because doing so might just be “life-saving.”\u003c/p>\n\u003cp>“The fact that so many people who felt the earthquake got the alert this morning is a good sign that the early warning stuff is at least working,” Hirakwa said. “It will be unfortunate when it happens, but the system will only be tested when there’s a large, destructive earthquake. That’s when it’s going to matter.”\u003c/p>\n\u003cp>San Francisco resident Anthony Costello slept through the alert but woke to the jostling.\u003c/p>\n\u003cp>“I was just like, ‘Oh, girl, shut up, and just rolled over,’” Costello said, who has lived in the region for eight years. “I think my sensitivity to quakes is starting to increase a little bit and also my general anxiety with quakes.”\u003c/p>\n\u003cfigure id=\"attachment_524199\" class=\"wp-caption aligncenter\" style=\"max-width: 1373px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"wp-image-524199 size-full\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured.png\" alt=\"U.C. Berkeley's MyShake app could be the first step toward earthquake warnings on your phone.\" width=\"1373\" height=\"795\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured.png 1373w, https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured-400x232.png 400w, https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured-800x463.png 800w, https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured-768x445.png 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured-1180x683.png 1180w, https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured-960x556.png 960w\" sizes=\"auto, (max-width: 1373px) 100vw, 1373px\">\u003cfigcaption class=\"wp-caption-text\">MyShake alerts users to earthquakes of magnitude 4.5 or higher, though residents in places like San Ramon have reported feeling smaller quakes during a swarm that has persisted for months. \u003ccite>(Berkeley Seismological Laboratory)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>Even still, Costello said early warnings are so important because the larger the quake, the more time you’re going to need to make sure you’re safe.\u003c/p>\n\u003cp>Menlo Park resident Stephanie Lucianovic also went back to sleep after a local warning prompted her phone to go off. In the morning, she discussed the quakes with her kids. She’s considering downloading the MyShake app, she said.\u003c/p>\n\u003cp>“I’m interested in knowing all the information, but I don’t think I’d want to have it be a loud warning every time there was some minor earthquake,” Lucianovic said.\u003c/p>\n\u003cp>Luckily, MyShake alerts users when there’s a 4.5-magnitude earthquake or higher, which doesn’t discount the experience of people who feel smaller quakes, like in \u003ca href=\"https://www.kqed.org/science/2000505/new-web-of-sensors-aims-to-pinpoint-san-ramon-earthquake-source\">San Ramon\u003c/a>, where a swarm of smaller quakes has been occurring for months.\u003c/p>\n\u003cp>“We can’t make everybody happy,” Lux said. “Some people are going to feel it, some people may not, but we’re there to help.”\u003c/p>\n\u003cp>https://docs.google.com/forms/d/e/1FAIpQLSeeeKhyuk-_odJH80iw5eAlpLBF-YWJnOi_Yqs4BEN9fY1YJA/viewform?usp=publish-editor\u003c/p>\n\u003cp>\u003c/p>\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>A blaring alarm woke Cian Dawson early Thursday morning. It was the MyShake phone app, alerting him to a 5.1 magnitude \u003ca href=\"https://www.kqed.org/news/12078438/4-6-magnitude-earthquake-in-santa-cruz-mountains-shakes-bay-area-awake\">earthquake\u003c/a> about to rock the region.\u003c/p>\n\u003cp>Dawson stayed in bed, thinking he wouldn’t have enough time to get under a table.\u003c/p>\n\u003cp>A few seconds later, the Berkeley resident’s room began to shake. “It made more sense to me to stay where I was,” Dawson told KQED.\u003c/p>\n\u003cp>The tremor \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/nc75337442/dyfi/responses\">near Boulder Creek\u003c/a> prompted the \u003ca href=\"https://myshake.berkeley.edu/\">MyShake phone app\u003c/a> and local agencies to alert hundreds of thousands of residents across the greater Bay Area and Central Coast. The USGS later downgraded the quake to a 4.6. More than 10,000 people reported the quake in the app, saying they felt light to moderate shaking, and there were two reports of destroyed buildings.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>In light of the relatively moderate-sized quake and a \u003ca href=\"https://www.kqed.org/news/12066087/the-m5-9-earthquake-alert-that-startled-the-bay-area-this-morning-was-a-false-alarm\">false alarm issued by the app\u003c/a> last year, some Bay Area residents have questioned whether agencies issue too many warnings and whether these alerts really make us safer. But seismologists argue they are important for protecting the public in the long run.\u003c/p>\n\u003cp>Dawson said there needs to be more outreach about how seriously to take the messaging, because people are beginning to train themselves to ignore the alerts.\u003c/p>\n\u003cp>“The ‘boy who cries wolf’ is a great way to describe people’s response when they don’t understand what the alert actually means,” Dawson said.\u003c/p>\n\u003cfigure id=\"attachment_2000581\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"wp-image-2000581 size-full\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/04/BoulderCreekSantaCruzGetty.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/04/BoulderCreekSantaCruzGetty.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/04/BoulderCreekSantaCruzGetty-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/04/BoulderCreekSantaCruzGetty-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/04/BoulderCreekSantaCruzGetty-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Big Basin Redwoods State Park on Nov. 5, 2020. \u003ccite>(Carolyn Cole/Los Angeles Times via Getty Images)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>Angie Lux, a scientist specializing in earthquake early warnings at the UC Berkeley Seismological Laboratory, said she thought the alert worked well, as it reached its ultimate goal of protecting lives and reducing injuries. Lux said the alert is sent to everyone at once, and the further you are away from the epicenter, the longer you will have to act.\u003c/p>\n\u003cp>“For the people that are right next to the epicenter, they’re not going to receive much warning,” Lux said.\u003c/p>\n\u003cp>Evan Hirakawa lives in Scott’s Valley, just a few miles away from the source of Thursday’s quake. The USGS research geophysicist said he felt the quake first, then his phone pinged.\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>“It was pretty intense at my house,” Hirakawa said. “The shake alert kind of worked, but it was too close for it to really benefit me.”\u003c/p>\n\u003cp>Hirakawa said there’s evidence that indicates the earthquake likely took place on a fault that hasn’t ruptured in a long time — the Zayante Fault in Santa Cruz County, which sits roughly between two major fault systems: the San Andreas and the San Gregorio.\u003c/p>\n\u003cp>“We have [Zayante] labeled in our databases as maybe it’s inactive now,” Hirakawa said. “It was active thousands of years ago, but we haven’t seen a lot of historical earthquakes on it.\u003cem>”\u003c/em>\u003c/p>\n\u003cp>While this shaking may seem like an outlier, Hirakawa said he doesn’t think Thursday’s quake “is a foreshock to something bigger.” But, he said, it’s still worth paying attention to early warning messages, because doing so might just be “life-saving.”\u003c/p>\n\u003cp>“The fact that so many people who felt the earthquake got the alert this morning is a good sign that the early warning stuff is at least working,” Hirakwa said. “It will be unfortunate when it happens, but the system will only be tested when there’s a large, destructive earthquake. That’s when it’s going to matter.”\u003c/p>\n\u003cp>San Francisco resident Anthony Costello slept through the alert but woke to the jostling.\u003c/p>\n\u003cp>“I was just like, ‘Oh, girl, shut up, and just rolled over,’” Costello said, who has lived in the region for eight years. “I think my sensitivity to quakes is starting to increase a little bit and also my general anxiety with quakes.”\u003c/p>\n\u003cfigure id=\"attachment_524199\" class=\"wp-caption aligncenter\" style=\"max-width: 1373px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"wp-image-524199 size-full\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured.png\" alt=\"U.C. Berkeley's MyShake app could be the first step toward earthquake warnings on your phone.\" width=\"1373\" height=\"795\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured.png 1373w, https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured-400x232.png 400w, https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured-800x463.png 800w, https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured-768x445.png 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured-1180x683.png 1180w, https://cdn.kqed.org/wp-content/uploads/sites/35/2016/02/MyShake_scrgrab_featured-960x556.png 960w\" sizes=\"auto, (max-width: 1373px) 100vw, 1373px\">\u003cfigcaption class=\"wp-caption-text\">MyShake alerts users to earthquakes of magnitude 4.5 or higher, though residents in places like San Ramon have reported feeling smaller quakes during a swarm that has persisted for months. \u003ccite>(Berkeley Seismological Laboratory)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>Even still, Costello said early warnings are so important because the larger the quake, the more time you’re going to need to make sure you’re safe.\u003c/p>\n\u003cp>Menlo Park resident Stephanie Lucianovic also went back to sleep after a local warning prompted her phone to go off. In the morning, she discussed the quakes with her kids. She’s considering downloading the MyShake app, she said.\u003c/p>\n\u003cp>“I’m interested in knowing all the information, but I don’t think I’d want to have it be a loud warning every time there was some minor earthquake,” Lucianovic said.\u003c/p>\n\u003cp>Luckily, MyShake alerts users when there’s a 4.5-magnitude earthquake or higher, which doesn’t discount the experience of people who feel smaller quakes, like in \u003ca href=\"https://www.kqed.org/science/2000505/new-web-of-sensors-aims-to-pinpoint-san-ramon-earthquake-source\">San Ramon\u003c/a>, where a swarm of smaller quakes has been occurring for months.\u003c/p>\n\u003cp>“We can’t make everybody happy,” Lux said. “Some people are going to feel it, some people may not, but we’re there to help.”\u003c/p>\u003c/p>\u003cp>\u003cdiv class='utils-parseShortcode-shortcodes-__shortcodes__shortcodeWrapper'>\n \u003ciframe\n src='https://docs.google.com/forms/d/e/1FAIpQLSeeeKhyuk-_odJH80iw5eAlpLBF-YWJnOi_Yqs4BEN9fY1YJA/viewform?usp=publish-editor?embedded=true'\n title='https://docs.google.com/forms/d/e/1FAIpQLSeeeKhyuk-_odJH80iw5eAlpLBF-YWJnOi_Yqs4BEN9fY1YJA/viewform?usp=publish-editor'\n width='760' height='500'\n frameborder='0'\n marginheight='0' marginwidth='0'>\u003c/iframe>\u003c/div>\u003c/p>\u003cp>\u003cp>\u003c/p>\n\u003c/div>\u003c/p>",
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"content": "\u003cp>Mona Epstein thought the violent shaking that woke her was just a nightmare. But when she checked her phone, she saw that an \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/nc75331762/executive\">earthquake \u003c/a>had struck the San Ramon Valley.\u003c/p>\n\u003cp>“Earthquakes have infiltrated my dreams,” Epstein said. “It’s really nerve-wracking.”\u003c/p>\n\u003cp>Epstein lives in \u003ca href=\"https://www.kqed.org/science/1999633/scientists-say-san-ramons-latest-earthquake-swarm-is-normal-but-residents-are-on-edge\">San Ramon\u003c/a>, a typically quiet Bay Area suburb that has been jolted by 162 earthquakes of a magnitude 2.0 or higher since November. Three dozen small tremors shook her home \u003ca href=\"https://www.kqed.org/news/12071884/earthquake-swarm-in-san-ramon-is-felt-around-bay-area-with-over-20-small-quakes\">in early February\u003c/a>, popping open cabinet doors.\u003c/p>\n\u003cp>“It just won’t stop,” Epstein said. “It’s like the new normal, I’ve become accustomed to it.”\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>Seismologists call the sequence of small earthquakes a “swarm” and say it is normal for this part of the Bay Area, which lies atop a spiderweb of active faults.\u003c/p>\n\u003cp>They don’t know exactly how or why they’re happening, or whether they are occurring on a major fault — which may hint at the risk of a larger earthquake coming — or on one of the many smaller cracks nearby.\u003c/p>\n\u003cfigure id=\"attachment_2000504\" class=\"wp-caption aligncenter\" style=\"max-width: 2560px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2000504\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5.jpg\" alt=\"\" width=\"2560\" height=\"1920\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5.jpg 2560w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5-2000x1500.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5-160x120.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5-768x576.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5-1536x1152.jpg 1536w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\">\u003cfigcaption class=\"wp-caption-text\">San Ramon sits atop a complex network of faults, making it prone to earthquake swarms. \u003ccite>(Anna Vignet/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>That’s why in mid-March, a group of United States Geological Survey seismologists and volunteers buried a network of 78 blue and grey toaster-sized seismometers across San Ramon and Danville.\u003c/p>\n\u003cp>“I don’t have any preconceived notions, I just want to find out what’s going on,” said Rufus Catchings, a research geophysicist with USGS, who is leading the work. “The data will hopefully tell us a lot more detail, like which faults are involved and whether earthquakes are happening on major faults.”\u003c/p>\n\u003cp>Catchings said a swarm on a smaller fault is “unlikely to generate a very large earthquake. But if it is connected, say, to the Calaveras or to one of the thrust faults, it could be very significant, and we need to know that.”\u003c/p>\n\u003cfigure id=\"attachment_2000437\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2000437\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00566_TV-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00566_TV-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00566_TV-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00566_TV-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00566_TV-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Rufus Catchings, a seismologist from USGS, installs a seismometer at a home in San Ramon on March 17, 2026. \u003ccite>(Tâm Vũ/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>San Ramon sits in a part of Contra Costa County that is prone to swarms and has experienced them a handful of times since the 1970s due to a complex system of faults in the region, including the Calaveras, Concord-Green Valley, Pleasanton, Mt. Diablo Thrust, Greenville and Sherburne Hills Thrust.\u003c/p>\n\u003cp>Epstein has lived in San Ramon for 12 years and experienced multiple swarms. The latest quakes have left her with a mountain of unanswered questions.\u003c/p>\n\u003cp>“I read as much as I could to understand whether or not this means that [a big one] is coming,” Epstein said. “I don’t think there is any solid answer. That’s why they’re putting all those little sensors everywhere.”\u003c/p>\n\u003ch2>A web of sensors\u003c/h2>\n\u003cp>The grid of sensors will track movement underground for the next six months, and afterward, seismologists will dig them up and analyze their readings.\u003c/p>\n\u003cp>“We know for sure that we’re going to catch some really small earthquakes because they’re just going on all the time, and if the swarm does pick up again, then we’ll definitely catch that,” said Annemarie Baltay, a research geophysicist with USGS.\u003c/p>\n\u003cfigure id=\"attachment_2000438\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2000438\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00574_TV-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00574_TV-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00574_TV-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00574_TV-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00574_TV-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Annemarie Baltay (left), a geophysicist researcher from USGS, and Rufus Catchings (right), a seismologist from USGS, install a seismometer at a home in San Ramon on March 17, 2026. \u003ccite>(Tâm Vũ/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>The battery-operated seismometers gather data around 200 times per second, Catchings said.\u003c/p>\n\u003cp>“We know that eventually there’s gonna be a big earthquake here,” Catchings said. “You can look at these mountains and see how they popped up through the tectonic forces.”\u003c/p>\n\u003cp>The researchers theorize that the swarm occurred along smaller sub-faults or due to liquid moving around these marginal cracks. But it’s hard to know exactly what’s happening five to 10 miles underground, Baltay said.[aside postID=news_12071884 hero='https://cdn.kqed.org/wp-content/uploads/sites/10/2026/02/251215-EarthquakeSwarms-14-BL_qed.jpg']“It’s very likely that the fault goes down, turns, dips and moves around,” Baltay said. “This will help us sort of understand that fault structure at depth.”\u003c/p>\n\u003cp>Baltay said the findings could also show how different soils affect how waves travel through the earth. What researchers learn might require adjustments to the USGS’s National Seismic Hazard Model, which informs local building codes and insurance risk models.\u003c/p>\n\u003cp>Mark Armstrong, mayor of San Ramon, lives in a two-story home smack dab in the epicenter of the recent swarm of quakes. He said the shaking he feels is a reminder that he lives in earthquake country.\u003c/p>\n\u003cp>“A couple of earthquakes were literally in my backyard or across the street,” Armstrong said, recalling rumblings that shook pictures off his bookshelves. The USGS scientists installed a seismometer in his backyard. “There’s a little bit of excitement when you get one of the big ones.”\u003c/p>\n\u003cp>Armstrong said residents have one burning question: “When is it going to stop?”\u003c/p>\n\u003cp>Armstrong said the city is planning an emergency exercise with the American Red Cross, in collaboration with the City of Danville and Contra Costa County. The run-through will likely include activating an emergency operations center and shelters.\u003c/p>\n\u003cfigure id=\"attachment_2000436\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2000436\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00523_TV-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00523_TV-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00523_TV-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00523_TV-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00523_TV-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Rufus Catchings, a seismologist from USGS, installs a seismometer at a home in San Ramon on March 17, 2026. \u003ccite>(Tâm Vũ/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>USGS seismologists also buried a sensor in Gina Veazey’s front yard. The Danville resident can tell an earthquake is going to shake her home when her dog, Stinky, goes “absolutely crazy” and “jumps off the bed.”\u003c/p>\n\u003cp>“Then all of a sudden we feel the tremor, so she’s a good indicator that something’s coming,” Veazey said.\u003c/p>\n\u003cp>Every time Veazey hears the groan of an earthquake, and then the rock and sway that follow, it’s a reminder that “Mother Nature is telling us we just got to roll with the punches that she throws. That’s all we can do.”\u003c/p>\n\u003cp>https://docs.google.com/forms/d/e/1FAIpQLSeeeKhyuk-_odJH80iw5eAlpLBF-YWJnOi_Yqs4BEN9fY1YJA/viewform?usp=publish-editor\u003c/p>\n\u003cp>\u003c/p>\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>Mona Epstein thought the violent shaking that woke her was just a nightmare. But when she checked her phone, she saw that an \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/nc75331762/executive\">earthquake \u003c/a>had struck the San Ramon Valley.\u003c/p>\n\u003cp>“Earthquakes have infiltrated my dreams,” Epstein said. “It’s really nerve-wracking.”\u003c/p>\n\u003cp>Epstein lives in \u003ca href=\"https://www.kqed.org/science/1999633/scientists-say-san-ramons-latest-earthquake-swarm-is-normal-but-residents-are-on-edge\">San Ramon\u003c/a>, a typically quiet Bay Area suburb that has been jolted by 162 earthquakes of a magnitude 2.0 or higher since November. Three dozen small tremors shook her home \u003ca href=\"https://www.kqed.org/news/12071884/earthquake-swarm-in-san-ramon-is-felt-around-bay-area-with-over-20-small-quakes\">in early February\u003c/a>, popping open cabinet doors.\u003c/p>\n\u003cp>“It just won’t stop,” Epstein said. “It’s like the new normal, I’ve become accustomed to it.”\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>Seismologists call the sequence of small earthquakes a “swarm” and say it is normal for this part of the Bay Area, which lies atop a spiderweb of active faults.\u003c/p>\n\u003cp>They don’t know exactly how or why they’re happening, or whether they are occurring on a major fault — which may hint at the risk of a larger earthquake coming — or on one of the many smaller cracks nearby.\u003c/p>\n\u003cfigure id=\"attachment_2000504\" class=\"wp-caption aligncenter\" style=\"max-width: 2560px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2000504\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5.jpg\" alt=\"\" width=\"2560\" height=\"1920\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5.jpg 2560w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5-2000x1500.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5-160x120.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5-768x576.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5-1536x1152.jpg 1536w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/faults-5-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\">\u003cfigcaption class=\"wp-caption-text\">San Ramon sits atop a complex network of faults, making it prone to earthquake swarms. \u003ccite>(Anna Vignet/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>That’s why in mid-March, a group of United States Geological Survey seismologists and volunteers buried a network of 78 blue and grey toaster-sized seismometers across San Ramon and Danville.\u003c/p>\n\u003cp>“I don’t have any preconceived notions, I just want to find out what’s going on,” said Rufus Catchings, a research geophysicist with USGS, who is leading the work. “The data will hopefully tell us a lot more detail, like which faults are involved and whether earthquakes are happening on major faults.”\u003c/p>\n\u003cp>Catchings said a swarm on a smaller fault is “unlikely to generate a very large earthquake. But if it is connected, say, to the Calaveras or to one of the thrust faults, it could be very significant, and we need to know that.”\u003c/p>\n\u003cfigure id=\"attachment_2000437\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2000437\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00566_TV-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00566_TV-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00566_TV-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00566_TV-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00566_TV-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Rufus Catchings, a seismologist from USGS, installs a seismometer at a home in San Ramon on March 17, 2026. \u003ccite>(Tâm Vũ/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>San Ramon sits in a part of Contra Costa County that is prone to swarms and has experienced them a handful of times since the 1970s due to a complex system of faults in the region, including the Calaveras, Concord-Green Valley, Pleasanton, Mt. Diablo Thrust, Greenville and Sherburne Hills Thrust.\u003c/p>\n\u003cp>Epstein has lived in San Ramon for 12 years and experienced multiple swarms. The latest quakes have left her with a mountain of unanswered questions.\u003c/p>\n\u003cp>“I read as much as I could to understand whether or not this means that [a big one] is coming,” Epstein said. “I don’t think there is any solid answer. That’s why they’re putting all those little sensors everywhere.”\u003c/p>\n\u003ch2>A web of sensors\u003c/h2>\n\u003cp>The grid of sensors will track movement underground for the next six months, and afterward, seismologists will dig them up and analyze their readings.\u003c/p>\n\u003cp>“We know for sure that we’re going to catch some really small earthquakes because they’re just going on all the time, and if the swarm does pick up again, then we’ll definitely catch that,” said Annemarie Baltay, a research geophysicist with USGS.\u003c/p>\n\u003cfigure id=\"attachment_2000438\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2000438\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00574_TV-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00574_TV-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00574_TV-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00574_TV-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00574_TV-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Annemarie Baltay (left), a geophysicist researcher from USGS, and Rufus Catchings (right), a seismologist from USGS, install a seismometer at a home in San Ramon on March 17, 2026. \u003ccite>(Tâm Vũ/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>The battery-operated seismometers gather data around 200 times per second, Catchings said.\u003c/p>\n\u003cp>“We know that eventually there’s gonna be a big earthquake here,” Catchings said. “You can look at these mountains and see how they popped up through the tectonic forces.”\u003c/p>\n\u003cp>The researchers theorize that the swarm occurred along smaller sub-faults or due to liquid moving around these marginal cracks. But it’s hard to know exactly what’s happening five to 10 miles underground, Baltay said.\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>“It’s very likely that the fault goes down, turns, dips and moves around,” Baltay said. “This will help us sort of understand that fault structure at depth.”\u003c/p>\n\u003cp>Baltay said the findings could also show how different soils affect how waves travel through the earth. What researchers learn might require adjustments to the USGS’s National Seismic Hazard Model, which informs local building codes and insurance risk models.\u003c/p>\n\u003cp>Mark Armstrong, mayor of San Ramon, lives in a two-story home smack dab in the epicenter of the recent swarm of quakes. He said the shaking he feels is a reminder that he lives in earthquake country.\u003c/p>\n\u003cp>“A couple of earthquakes were literally in my backyard or across the street,” Armstrong said, recalling rumblings that shook pictures off his bookshelves. The USGS scientists installed a seismometer in his backyard. “There’s a little bit of excitement when you get one of the big ones.”\u003c/p>\n\u003cp>Armstrong said residents have one burning question: “When is it going to stop?”\u003c/p>\n\u003cp>Armstrong said the city is planning an emergency exercise with the American Red Cross, in collaboration with the City of Danville and Contra Costa County. The run-through will likely include activating an emergency operations center and shelters.\u003c/p>\n\u003cfigure id=\"attachment_2000436\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2000436\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00523_TV-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00523_TV-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00523_TV-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00523_TV-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2026/03/260317-SANRAMONEARTHQUAKES00523_TV-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Rufus Catchings, a seismologist from USGS, installs a seismometer at a home in San Ramon on March 17, 2026. \u003ccite>(Tâm Vũ/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>USGS seismologists also buried a sensor in Gina Veazey’s front yard. The Danville resident can tell an earthquake is going to shake her home when her dog, Stinky, goes “absolutely crazy” and “jumps off the bed.”\u003c/p>\n\u003cp>“Then all of a sudden we feel the tremor, so she’s a good indicator that something’s coming,” Veazey said.\u003c/p>\n\u003cp>Every time Veazey hears the groan of an earthquake, and then the rock and sway that follow, it’s a reminder that “Mother Nature is telling us we just got to roll with the punches that she throws. That’s all we can do.”\u003c/p>\u003c/p>\u003cp>\u003cdiv class='utils-parseShortcode-shortcodes-__shortcodes__shortcodeWrapper'>\n \u003ciframe\n src='https://docs.google.com/forms/d/e/1FAIpQLSeeeKhyuk-_odJH80iw5eAlpLBF-YWJnOi_Yqs4BEN9fY1YJA/viewform?usp=publish-editor?embedded=true'\n title='https://docs.google.com/forms/d/e/1FAIpQLSeeeKhyuk-_odJH80iw5eAlpLBF-YWJnOi_Yqs4BEN9fY1YJA/viewform?usp=publish-editor'\n width='760' height='500'\n frameborder='0'\n marginheight='0' marginwidth='0'>\u003c/iframe>\u003c/div>\u003c/p>\u003cp>\u003cp>\u003c/p>\n\u003c/div>\u003c/p>",
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"title": "Earthquake Swarm in San Ramon Is Felt Around Bay Area, With Over 20 Small Quakes",
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"content": "\u003cp>A flurry of \u003ca href=\"https://www.kqed.org/earthquakes\">earthquakes\u003c/a> shook San Ramon early Monday, the latest swarm of small quakes that have rattled residents in recent months.\u003c/p>\n\u003cp>The U.S. Geological Survey has recorded \u003ca href=\"https://earthquake.usgs.gov/earthquakes/map/?extent=37.74063,-121.97448&extent=37.78114,-121.89603&listOnlyShown=true\">21 quakes\u003c/a> near the Contra Costa County city through the morning, with the largest registering at a magnitude 4.2 just after 7 a.m.\u003c/p>\n\u003cp>The quake originated southeast of San Ramon, with the most intense shaking felt in the city and nearby Dublin. People in large parts of the East Bay, from Oakland and Hayward to Pleasanton, as well as eastern parts of San Francisco, also reported rattling.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>In San Ramon, Rachael Heys was woken up by the 4.2 magnitude quake, which she said was one of the biggest she’s felt in a long time. It knocked over some things throughout her home and sent her cats into hiding.\u003c/p>\n\u003cp>“This is getting really scary,” Heys said after another quake, which registered at magnitude 3.8, occurred just before 7:30 a.m.\u003c/p>\n\u003cp>The other quakes ranging from magnitude 2.5 to 3.8 occurred around Alcosta Boulevard, south of Bollinger Canyon Road. They likely originated along the Calaveras Fault, which produced another swarm of earthquakes in San Ramon in December.\u003c/p>\n\u003cfigure id=\"attachment_12071926\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12071926\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/10/2026/02/251215-EarthquakeSwarms-22-BL_qed.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/10/2026/02/251215-EarthquakeSwarms-22-BL_qed.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/10/2026/02/251215-EarthquakeSwarms-22-BL_qed-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/10/2026/02/251215-EarthquakeSwarms-22-BL_qed-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">A sign says, “Welcome to San Ramon” in San Ramon on Dec. 15, 2025. \u003ccite>(Beth LaBerge/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>It’s \u003ca href=\"https://www.kqed.org/science/1999633/scientists-say-san-ramons-latest-earthquake-swarm-is-normal-but-residents-are-on-edge\">common for the fault to produce such flurries\u003c/a>, according to seismologists. Experts say smaller quakes don’t generally signal a “Big One” is imminent, and the USGS reports that after Monday’s seismic activity, there’s less than a 6% chance of a larger quake in the next week.\u003c/p>\n\u003cp>But the slip-strike fault is believed to have about an 11% chance of producing a larger quake by 2033. Calaveras is capable of producing a 6.7 magnitude earthquake. It shook Morgan Hill with a magnitude 6.2 in 1984.\u003c/p>\n\u003cp>“This has been an absolutely crazy hour,” Mona Epstein, another San Ramon resident, said after the initial flurry of quakes. “It just won’t stop. My nerves are frazzled.”\u003c/p>\n\u003cp>No major damage or injuries resulting from Monday’s shaking has been reported, but Epstein said the quakes kept her awake much of the early morning, and Nextdoor was “blowing up” with fears and reactions from neighbors. Epstein said her doors popped open during one of the quakes.\u003c/p>\n\u003cp>BART reduced train speeds to conduct track safety inspections following the shaking. The agency said to expect delays up to 20 minutes systemwide as it recovers.\u003c/p>\n\u003cp>The last quake in the area occurred just after 9 a.m.\u003c/p>\n\u003cp>\u003cem>KQED’s \u003c/em>\u003ca href=\"https://www.kqed.org/author/eromero\">\u003cem>Ezra David Romero\u003c/em>\u003c/a>\u003cem> contributed to this report.\u003c/em>\u003c/p>\n\u003cp>\u003c/p>\n",
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"excerpt": "A flurry of earthquakes shook the East Bay early Monday, with the largest registered at a magnitude 4.2 just after 7 a.m. Such clusters are common for the Calaveras Fault.",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>A flurry of \u003ca href=\"https://www.kqed.org/earthquakes\">earthquakes\u003c/a> shook San Ramon early Monday, the latest swarm of small quakes that have rattled residents in recent months.\u003c/p>\n\u003cp>The U.S. Geological Survey has recorded \u003ca href=\"https://earthquake.usgs.gov/earthquakes/map/?extent=37.74063,-121.97448&extent=37.78114,-121.89603&listOnlyShown=true\">21 quakes\u003c/a> near the Contra Costa County city through the morning, with the largest registering at a magnitude 4.2 just after 7 a.m.\u003c/p>\n\u003cp>The quake originated southeast of San Ramon, with the most intense shaking felt in the city and nearby Dublin. People in large parts of the East Bay, from Oakland and Hayward to Pleasanton, as well as eastern parts of San Francisco, also reported rattling.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>In San Ramon, Rachael Heys was woken up by the 4.2 magnitude quake, which she said was one of the biggest she’s felt in a long time. It knocked over some things throughout her home and sent her cats into hiding.\u003c/p>\n\u003cp>“This is getting really scary,” Heys said after another quake, which registered at magnitude 3.8, occurred just before 7:30 a.m.\u003c/p>\n\u003cp>The other quakes ranging from magnitude 2.5 to 3.8 occurred around Alcosta Boulevard, south of Bollinger Canyon Road. They likely originated along the Calaveras Fault, which produced another swarm of earthquakes in San Ramon in December.\u003c/p>\n\u003cfigure id=\"attachment_12071926\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12071926\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/10/2026/02/251215-EarthquakeSwarms-22-BL_qed.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/10/2026/02/251215-EarthquakeSwarms-22-BL_qed.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/10/2026/02/251215-EarthquakeSwarms-22-BL_qed-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/10/2026/02/251215-EarthquakeSwarms-22-BL_qed-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">A sign says, “Welcome to San Ramon” in San Ramon on Dec. 15, 2025. \u003ccite>(Beth LaBerge/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>It’s \u003ca href=\"https://www.kqed.org/science/1999633/scientists-say-san-ramons-latest-earthquake-swarm-is-normal-but-residents-are-on-edge\">common for the fault to produce such flurries\u003c/a>, according to seismologists. Experts say smaller quakes don’t generally signal a “Big One” is imminent, and the USGS reports that after Monday’s seismic activity, there’s less than a 6% chance of a larger quake in the next week.\u003c/p>\n\u003cp>But the slip-strike fault is believed to have about an 11% chance of producing a larger quake by 2033. Calaveras is capable of producing a 6.7 magnitude earthquake. It shook Morgan Hill with a magnitude 6.2 in 1984.\u003c/p>\n\u003cp>“This has been an absolutely crazy hour,” Mona Epstein, another San Ramon resident, said after the initial flurry of quakes. “It just won’t stop. My nerves are frazzled.”\u003c/p>\n\u003cp>No major damage or injuries resulting from Monday’s shaking has been reported, but Epstein said the quakes kept her awake much of the early morning, and Nextdoor was “blowing up” with fears and reactions from neighbors. Epstein said her doors popped open during one of the quakes.\u003c/p>\n\u003cp>BART reduced train speeds to conduct track safety inspections following the shaking. The agency said to expect delays up to 20 minutes systemwide as it recovers.\u003c/p>\n\u003cp>The last quake in the area occurred just after 9 a.m.\u003c/p>\n\u003cp>\u003cem>KQED’s \u003c/em>\u003ca href=\"https://www.kqed.org/author/eromero\">\u003cem>Ezra David Romero\u003c/em>\u003c/a>\u003cem> contributed to this report.\u003c/em>\u003c/p>\n\u003cp>\u003c/p>\n\u003c/div>\u003c/p>",
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"content": "\u003cp>Two \u003ca href=\"https://www.kqed.org/science/1936949/do-little-quakes-mean-the-big-one-is-close-at-hand\">earthquakes\u003c/a> shook Mona Epstein awake in the middle of the night, long before she crawled out of bed on the morning of Dec. 8.\u003c/p>\n\u003cp>But it was the rocking from the magnitude 3.6 quake just after 9 a.m. that caused the San Ramon resident to scream.\u003c/p>\n\u003cp>“There was a loud rumble,” said Epstein, who lives about a mile from where the quake hit. “The cupboard doors opened, my armoire door popped open and things popped out of the closet.”\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>Epstein said she hesitated to even shower afterward for fear of another earthquake. “If it was the big one,” then she didn’t want to “be naked and have to run out.”\u003c/p>\n\u003cp>Nearly 1,600 people as far away as San José reported they felt the quake, which occurred along the Calaveras Fault, the United States Geological Survey \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/nc75276661/impact\">reported\u003c/a>.\u003c/p>\n\u003cp>Over the last month, more than 150 earthquakes jolted the San Ramon area — including \u003ca href=\"https://earthquake.usgs.gov/earthquakes/map/?currentFeatureId=nc75276661&extent=37.73196,-121.97116&extent=37.77139,-121.91623&range=week&settings=true\">10 earthquakes at or above a magnitude 2.5\u003c/a> on Dec. 8, according to Amy Williamson, a research seismologist at the \u003ca href=\"https://earthquakes.berkeley.edu/seismo.real.time.map.html\">UC Berkeley Seismology Lab\u003c/a>. On Friday, an additional half dozen quakes rocked San Ramon, including a \u003ca href=\"https://earthquake.usgs.gov/earthquakes/map/?extent=37.70936,-121.99236&extent=37.78822,-121.8825&range=week&settings=true\">magnitude 4.0 earthquake\u003c/a> just before 8 p.m.\u003c/p>\n\u003cfigure id=\"attachment_1999667\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1999667\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EarthquakeSwarms-15-BL_qed.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EarthquakeSwarms-15-BL_qed.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EarthquakeSwarms-15-BL_qed-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EarthquakeSwarms-15-BL_qed-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EarthquakeSwarms-15-BL_qed-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Mona Epstein stands in her apartment in San Ramon on Dec. 15, 2025. She experienced a recent swarm of small earthquakes in the area. \u003ccite>(Beth LaBerge/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>This part of Contra Costa County is prone to earthquake swarms and has experienced these events a handful of times since the 1970s, due to a complex system of faults.\u003c/p>\n\u003cp>“They’ve had these sorts of swarms for decades now,” Williamson said. “For San Ramon to the Danville area, it’s really common.”\u003c/p>\n\u003cp>Epstein experienced an earlier swarm back in 2018 while living in San Ramon, a city with a population of nearly 80,000.\u003c/p>\n\u003cp>While these earthquake clusters aren’t out of the ordinary, they can still come as a surprise, especially if you live right above the jolt, like Rachael Heys, whose street in San Ramon is located right over the epicenter of last week’s swarm.\u003c/p>\n\u003cfigure id=\"attachment_1999657\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1999657\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-16-BL-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-16-BL-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-16-BL-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-16-BL-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-16-BL-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Mona Epstein keeps a weather radio and flashlight on her kitchen counter in her apartment in San Ramon on Dec. 15, 2025. A recent swarm of small earthquakes in the area motivated her to prepare for emergencies. \u003ccite>(Beth LaBerge/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>She credits her cat, Marshall — named after rapper Eminem — for warning her that an earthquake was about to hit in the middle of the night. He made “weird little noises” and hid under a table.\u003c/p>\n\u003cp>“Within seconds of him yelling this big loud meow, there was a big earthquake,” Heys said. “It really shook me. It sounded like a dresser hit the wall. It was like this one big bang.”\u003c/p>\n\u003cp>Heys and her boyfriend felt at least two other quakes that morning.\u003c/p>\n\u003cp>“We had all of these mini ones mostly in that one day,” Heys said. “This is insane.”\u003c/p>\n\u003cfigure id=\"attachment_1999655\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1999655\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-04-BL-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-04-BL-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-04-BL-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-04-BL-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-04-BL-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Rachael Heys holds her cat Marshall outside her apartment building in San Ramon on Dec. 15, 2025. The area recently experienced a sequence of small earthquakes that residents reported feeling over several days. \u003ccite>(Beth LaBerge/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>Earthquake swarms differ from a typical earthquake sequence, where there’s one main shock and then a series of small aftershocks, Williamson said. Swarms don’t usually have a dominant earthquake. Instead, a cluster of tiny or minor earthquakes takes place over a more extended period of time, and then the fault quiets down.\u003c/p>\n\u003cp>“The fact that there’s a swarm here doesn’t make it any more or less likely for the big one that people are always talking about in the Bay Area,” Williamson said.\u003c/p>\n\u003cp>Earthquake swarms typically occur due to changes in the liquid around a fault. They’re common in places near volcanoes and geothermal areas. But Williamson said what makes the San Ramon area “a little bit unique” is that the area isn’t volcanic or hydrothermal.[aside postID=news_12060130 hero='https://cdn.kqed.org/wp-content/uploads/sites/10/2025/10/SFFireDeptLomaPrieta1.jpg']San Ramon sits over a complex geologic environment, which is one theory, Williamson said, for why the area gets swarms every few years. The Calaveras Fault runs underneath the city in a transition zone.\u003c/p>\n\u003cp>It is part of the San Andreas Fault system and is \u003ca href=\"https://pubs.usgs.gov/publication/fs20153009\">capable of a magnitude 6.7 earthquake\u003c/a>. To the east, the Mount Diablo Thrust Fault begins.\u003c/p>\n\u003cp>“All these earthquakes happen in that transition area,” Williamson said. “Any small changes kind of cause that area to preferentially get more earthquakes.”\u003c/p>\n\u003cp>The last big quake the Calaveras Fault produced was in 1984 in Morgan Hill with a magnitude of 6.2. But if the Hayward Fault and the Calaveras Fault, which UC Berkeley scientists found are \u003ca href=\"https://www.universityofcalifornia.edu/news/calaveras-hayward-fault-link-means-potentially-larger-quakes\">connected\u003c/a>, rock simultaneously, that could result in a magnitude 7.3 earthquake.\u003c/p>\n\u003cp>Faults contain liquid that lubricates the earth, making it easier to move and causing earthquakes. Similar to a person wetting their hands and sliding them together, the fluid reduces the friction, and the rock “can slide more freely,” Williamson said.\u003c/p>\n\u003cp>Williamson said the liquid is usually a mix of water and minerals, and that there isn’t a “great model” to say exactly how it moves through cracks within the fault system. That movement can cause the quakes.\u003c/p>\n\u003cp>Williamson said the “constant rattle” should serve as a reminder that Bay Area residents live in a “really seismically active area.” She recommended \u003ca href=\"https://www.kqed.org/science/1949019/its-about-time-how-to-get-ready-for-the-next-emergency\">preparing a go bag\u003c/a> with clothes, food and water.\u003c/p>\n\u003cfigure id=\"attachment_1999661\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1999661\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-19-BL-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-19-BL-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-19-BL-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-19-BL-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-19-BL-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">A sign for apartments on Deerwood Road in San Ramon on Dec. 15, 2025. The area sits near the Calaveras Fault, an active fault that runs underground through the East Bay. \u003ccite>(Beth LaBerge/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>Epstein, who is retired, said she’s started to prepare for a larger earthquake, collecting masks, gloves, water, tools, and canned food — although she needs to double-check the expiration dates to make sure the food is still good to eat.\u003c/p>\n\u003cp>“I’m not to the point where I’m gonna sleep with my shoes on or anything,” Epstein said. “I just hope if the worst happens that I can get to the bag in the closet.”\u003c/p>\n\u003cp>Heys, who works as a server in Danville, on the other hand, is very prepared. She has a supply of perishable food, flashlights, portable chargers that also act as flashlights, mini candles, gallons of water and a case of water in her car.\u003c/p>\n\u003cp>She’s talked with her friends and neighbors about the quakes and how they’ve prepared, but they don’t seem as concerned.\u003c/p>\n\u003cp>“Nobody really has any major concerns as of now,” Heys said. “I think that’s because none of us has experienced a huge one yet.”\u003c/p>\n\u003cp>[ad floatright]\u003c/p>\n",
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"excerpt": "A swarm of small earthquakes jolted San Ramon over the last month. Scientists said the earthquakes are normal and aren’t indicative of the big one. ",
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"title": "Scientists Say San Ramon’s Latest Earthquake Swarm Is Normal, but Residents Are on Edge | KQED",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>Two \u003ca href=\"https://www.kqed.org/science/1936949/do-little-quakes-mean-the-big-one-is-close-at-hand\">earthquakes\u003c/a> shook Mona Epstein awake in the middle of the night, long before she crawled out of bed on the morning of Dec. 8.\u003c/p>\n\u003cp>But it was the rocking from the magnitude 3.6 quake just after 9 a.m. that caused the San Ramon resident to scream.\u003c/p>\n\u003cp>“There was a loud rumble,” said Epstein, who lives about a mile from where the quake hit. “The cupboard doors opened, my armoire door popped open and things popped out of the closet.”\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>Epstein said she hesitated to even shower afterward for fear of another earthquake. “If it was the big one,” then she didn’t want to “be naked and have to run out.”\u003c/p>\n\u003cp>Nearly 1,600 people as far away as San José reported they felt the quake, which occurred along the Calaveras Fault, the United States Geological Survey \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/nc75276661/impact\">reported\u003c/a>.\u003c/p>\n\u003cp>Over the last month, more than 150 earthquakes jolted the San Ramon area — including \u003ca href=\"https://earthquake.usgs.gov/earthquakes/map/?currentFeatureId=nc75276661&extent=37.73196,-121.97116&extent=37.77139,-121.91623&range=week&settings=true\">10 earthquakes at or above a magnitude 2.5\u003c/a> on Dec. 8, according to Amy Williamson, a research seismologist at the \u003ca href=\"https://earthquakes.berkeley.edu/seismo.real.time.map.html\">UC Berkeley Seismology Lab\u003c/a>. On Friday, an additional half dozen quakes rocked San Ramon, including a \u003ca href=\"https://earthquake.usgs.gov/earthquakes/map/?extent=37.70936,-121.99236&extent=37.78822,-121.8825&range=week&settings=true\">magnitude 4.0 earthquake\u003c/a> just before 8 p.m.\u003c/p>\n\u003cfigure id=\"attachment_1999667\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1999667\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EarthquakeSwarms-15-BL_qed.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EarthquakeSwarms-15-BL_qed.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EarthquakeSwarms-15-BL_qed-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EarthquakeSwarms-15-BL_qed-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EarthquakeSwarms-15-BL_qed-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Mona Epstein stands in her apartment in San Ramon on Dec. 15, 2025. She experienced a recent swarm of small earthquakes in the area. \u003ccite>(Beth LaBerge/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>This part of Contra Costa County is prone to earthquake swarms and has experienced these events a handful of times since the 1970s, due to a complex system of faults.\u003c/p>\n\u003cp>“They’ve had these sorts of swarms for decades now,” Williamson said. “For San Ramon to the Danville area, it’s really common.”\u003c/p>\n\u003cp>Epstein experienced an earlier swarm back in 2018 while living in San Ramon, a city with a population of nearly 80,000.\u003c/p>\n\u003cp>While these earthquake clusters aren’t out of the ordinary, they can still come as a surprise, especially if you live right above the jolt, like Rachael Heys, whose street in San Ramon is located right over the epicenter of last week’s swarm.\u003c/p>\n\u003cfigure id=\"attachment_1999657\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1999657\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-16-BL-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-16-BL-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-16-BL-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-16-BL-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-16-BL-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Mona Epstein keeps a weather radio and flashlight on her kitchen counter in her apartment in San Ramon on Dec. 15, 2025. A recent swarm of small earthquakes in the area motivated her to prepare for emergencies. \u003ccite>(Beth LaBerge/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>She credits her cat, Marshall — named after rapper Eminem — for warning her that an earthquake was about to hit in the middle of the night. He made “weird little noises” and hid under a table.\u003c/p>\n\u003cp>“Within seconds of him yelling this big loud meow, there was a big earthquake,” Heys said. “It really shook me. It sounded like a dresser hit the wall. It was like this one big bang.”\u003c/p>\n\u003cp>Heys and her boyfriend felt at least two other quakes that morning.\u003c/p>\n\u003cp>“We had all of these mini ones mostly in that one day,” Heys said. “This is insane.”\u003c/p>\n\u003cfigure id=\"attachment_1999655\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1999655\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-04-BL-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-04-BL-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-04-BL-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-04-BL-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-04-BL-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">Rachael Heys holds her cat Marshall outside her apartment building in San Ramon on Dec. 15, 2025. The area recently experienced a sequence of small earthquakes that residents reported feeling over several days. \u003ccite>(Beth LaBerge/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>Earthquake swarms differ from a typical earthquake sequence, where there’s one main shock and then a series of small aftershocks, Williamson said. Swarms don’t usually have a dominant earthquake. Instead, a cluster of tiny or minor earthquakes takes place over a more extended period of time, and then the fault quiets down.\u003c/p>\n\u003cp>“The fact that there’s a swarm here doesn’t make it any more or less likely for the big one that people are always talking about in the Bay Area,” Williamson said.\u003c/p>\n\u003cp>Earthquake swarms typically occur due to changes in the liquid around a fault. They’re common in places near volcanoes and geothermal areas. But Williamson said what makes the San Ramon area “a little bit unique” is that the area isn’t volcanic or hydrothermal.\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>San Ramon sits over a complex geologic environment, which is one theory, Williamson said, for why the area gets swarms every few years. The Calaveras Fault runs underneath the city in a transition zone.\u003c/p>\n\u003cp>It is part of the San Andreas Fault system and is \u003ca href=\"https://pubs.usgs.gov/publication/fs20153009\">capable of a magnitude 6.7 earthquake\u003c/a>. To the east, the Mount Diablo Thrust Fault begins.\u003c/p>\n\u003cp>“All these earthquakes happen in that transition area,” Williamson said. “Any small changes kind of cause that area to preferentially get more earthquakes.”\u003c/p>\n\u003cp>The last big quake the Calaveras Fault produced was in 1984 in Morgan Hill with a magnitude of 6.2. But if the Hayward Fault and the Calaveras Fault, which UC Berkeley scientists found are \u003ca href=\"https://www.universityofcalifornia.edu/news/calaveras-hayward-fault-link-means-potentially-larger-quakes\">connected\u003c/a>, rock simultaneously, that could result in a magnitude 7.3 earthquake.\u003c/p>\n\u003cp>Faults contain liquid that lubricates the earth, making it easier to move and causing earthquakes. Similar to a person wetting their hands and sliding them together, the fluid reduces the friction, and the rock “can slide more freely,” Williamson said.\u003c/p>\n\u003cp>Williamson said the liquid is usually a mix of water and minerals, and that there isn’t a “great model” to say exactly how it moves through cracks within the fault system. That movement can cause the quakes.\u003c/p>\n\u003cp>Williamson said the “constant rattle” should serve as a reminder that Bay Area residents live in a “really seismically active area.” She recommended \u003ca href=\"https://www.kqed.org/science/1949019/its-about-time-how-to-get-ready-for-the-next-emergency\">preparing a go bag\u003c/a> with clothes, food and water.\u003c/p>\n\u003cfigure id=\"attachment_1999661\" class=\"wp-caption aligncenter\" style=\"max-width: 2000px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1999661\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-19-BL-KQED.jpg\" alt=\"\" width=\"2000\" height=\"1333\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-19-BL-KQED.jpg 2000w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-19-BL-KQED-160x107.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-19-BL-KQED-768x512.jpg 768w, https://cdn.kqed.org/wp-content/uploads/sites/35/2025/12/251215-EARTHQUAKESWARMS-19-BL-KQED-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\">\u003cfigcaption class=\"wp-caption-text\">A sign for apartments on Deerwood Road in San Ramon on Dec. 15, 2025. The area sits near the Calaveras Fault, an active fault that runs underground through the East Bay. \u003ccite>(Beth LaBerge/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>Epstein, who is retired, said she’s started to prepare for a larger earthquake, collecting masks, gloves, water, tools, and canned food — although she needs to double-check the expiration dates to make sure the food is still good to eat.\u003c/p>\n\u003cp>“I’m not to the point where I’m gonna sleep with my shoes on or anything,” Epstein said. “I just hope if the worst happens that I can get to the bag in the closet.”\u003c/p>\n\u003cp>Heys, who works as a server in Danville, on the other hand, is very prepared. She has a supply of perishable food, flashlights, portable chargers that also act as flashlights, mini candles, gallons of water and a case of water in her car.\u003c/p>\n\u003cp>She’s talked with her friends and neighbors about the quakes and how they’ve prepared, but they don’t seem as concerned.\u003c/p>\n\u003cp>“Nobody really has any major concerns as of now,” Heys said. “I think that’s because none of us has experienced a huge one yet.”\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cp>The errant \u003ca href=\"https://www.kqed.org/news/tag/earthquake\">earthquake\u003c/a> warning that lit up phones across Northern California with a notice of a quake in Nevada on Thursday morning was not a result of a problem with the early warning delivery system or MyShake phone application, officials said.\u003c/p>\n\u003cp>At least four separate seismic stations detected ground motion “that told the system there was an earthquake,” which triggered the false warning of a magnitude 5.9 earthquake, according to officials with the U.S. Geological Survey.\u003c/p>\n\u003cp>The USGS quickly canceled the warning and posted a statement online that said there was no earthquake at all.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>“This is the very first time we’ve had what I call a through and through false alert delivery because of something that may have happened out somewhere out in the field,” ShakeAlert operations team lead Robert de Groot told KQED. “We’ve had occurrences where we’ve alerted more people than should have been alerted, but [in this case] something triggered the system, but it wasn’t an earthquake.”\u003c/p>\n\u003cp>USGS officials do not yet know what caused the shaking. De Groot said research teams are analyzing information from other seismic stations and could potentially launch a field investigation.\u003c/p>\n\u003cp>“Earth does different things all the time and we can’t know everything, but we’re continuing to improve the system to understand,” he said.\u003c/p>\n\u003cp>The alert, which urged people to “drop, cover and hold on” to prepare for imminent shaking, caused at least one TV station, KTVU, to report on the quake.\u003c/p>\n\u003cp>Four million Californians have downloaded\u003ca href=\"https://www.kqed.org/news/12059704/why-your-phone-may-get-a-loud-earthquake-test-alert-this-week-and-how-the-myshake-app-works\"> the MyShake app\u003c/a>, which provides real-time alerts for earthquakes on smartphones.\u003c/p>\n\u003cp>The app was developed at UC Berkeley’s Seismology Lab and funded by the California Governor’s Office of Emergency Services (Cal OES). It buzzes when an earthquake of a magnitude of 4.5 or higher occurs.\u003c/p>\n\u003cp>Berkeley’s seismology team posted a statement to social media at 9:55 a.m. about the false alert by the USGS ShakeAlert system and distributed by the MyShake phone application.\u003c/p>\n\u003cp>“This system has delivered more than 170 real alerts since 2019 and this incident is both unprecedented and rare,” MyShake said on \u003ca href=\"https://x.com/MyShakeApp/status/1996639456678629734\">X\u003c/a>. “Fortunately, there was no danger this morning, but this serves as a reminder that earthquake preparedness is essential.”\u003c/p>\n\u003cp>\u003c/p>\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>The errant \u003ca href=\"https://www.kqed.org/news/tag/earthquake\">earthquake\u003c/a> warning that lit up phones across Northern California with a notice of a quake in Nevada on Thursday morning was not a result of a problem with the early warning delivery system or MyShake phone application, officials said.\u003c/p>\n\u003cp>At least four separate seismic stations detected ground motion “that told the system there was an earthquake,” which triggered the false warning of a magnitude 5.9 earthquake, according to officials with the U.S. Geological Survey.\u003c/p>\n\u003cp>The USGS quickly canceled the warning and posted a statement online that said there was no earthquake at all.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>“This is the very first time we’ve had what I call a through and through false alert delivery because of something that may have happened out somewhere out in the field,” ShakeAlert operations team lead Robert de Groot told KQED. “We’ve had occurrences where we’ve alerted more people than should have been alerted, but [in this case] something triggered the system, but it wasn’t an earthquake.”\u003c/p>\n\u003cp>USGS officials do not yet know what caused the shaking. De Groot said research teams are analyzing information from other seismic stations and could potentially launch a field investigation.\u003c/p>\n\u003cp>“Earth does different things all the time and we can’t know everything, but we’re continuing to improve the system to understand,” he said.\u003c/p>\n\u003cp>The alert, which urged people to “drop, cover and hold on” to prepare for imminent shaking, caused at least one TV station, KTVU, to report on the quake.\u003c/p>\n\u003cp>Four million Californians have downloaded\u003ca href=\"https://www.kqed.org/news/12059704/why-your-phone-may-get-a-loud-earthquake-test-alert-this-week-and-how-the-myshake-app-works\"> the MyShake app\u003c/a>, which provides real-time alerts for earthquakes on smartphones.\u003c/p>\n\u003cp>The app was developed at UC Berkeley’s Seismology Lab and funded by the California Governor’s Office of Emergency Services (Cal OES). It buzzes when an earthquake of a magnitude of 4.5 or higher occurs.\u003c/p>\n\u003cp>Berkeley’s seismology team posted a statement to social media at 9:55 a.m. about the false alert by the USGS ShakeAlert system and distributed by the MyShake phone application.\u003c/p>\n\u003cp>“This system has delivered more than 170 real alerts since 2019 and this incident is both unprecedented and rare,” MyShake said on \u003ca href=\"https://x.com/MyShakeApp/status/1996639456678629734\">X\u003c/a>. “Fortunately, there was no danger this morning, but this serves as a reminder that earthquake preparedness is essential.”\u003c/p>\n\u003cp>\u003c/p>\n\u003c/div>\u003c/p>",
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"content": "\u003cp>The South Bay was rattled by a cluster of small earthquakes on Wednesday morning, according to data from the \u003ca href=\"https://earthquake.usgs.gov/earthquakes/map/?currentFeatureId=nc75269596&extent=36.78399,-122.0842&extent=37.45633,-120.99106&listOnlyShown=true\">U.S. Geological Survey\u003c/a>.\u003c/p>\n\u003cp>A magnitude 4.0 quake hit just east of Gilroy at 6:16 a.m., and it was followed within minutes by two smaller tremors.\u003c/p>\n\u003cp>At 6:18 a.m., a magnitude 2.7 aftershock hit less than a mile from the epicenter of the first, and at 6:20 a.m., a magnitude 3.6 quake struck slightly south.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>The shaking appears to have been centered in San José and throughout the South Bay, with light to moderate shaking closest to the epicenter of the largest quake, though people as far north as Antioch and south as San Lucas \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/ew1764166600/map?shakemap-code=75269596&shakemap-source=nc&shakemap-intensity=true&shakemap-mmi-contours=false&shakemap-macroseismic-stations=true&shakemap-seismic-stations=true\">reported feeling the quake\u003c/a>. No reports of damage were immediately available.\u003c/p>\n\u003cp>According to the USGS, the Calaveras Fault likely produced the earthquakes. The last large quake recorded on the slip-strike fault was a magnitude 6.2 quake that jolted \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/ew1764166600/region-info\">Morgan Hill in 1984.\u003c/a> Cavaleras is believed to have about an 11% chance of producing a larger quake by 2033.\u003c/p>\n\u003cp>The odds that Wednesday’s cluster of quakes is a precursor to a much bigger one are low — USGS data shows there is about a \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/ew1764166600/oaf/overview\">14% chance\u003c/a> of another one above magnitude 3.0, and those odds drop to 2% for a magnitude 4.0 or higher quake.\u003c/p>\n\u003cp>\u003c/p>\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>The shaking appears to have been centered in San José and throughout the South Bay, with light to moderate shaking closest to the epicenter of the largest quake, though people as far north as Antioch and south as San Lucas \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/ew1764166600/map?shakemap-code=75269596&shakemap-source=nc&shakemap-intensity=true&shakemap-mmi-contours=false&shakemap-macroseismic-stations=true&shakemap-seismic-stations=true\">reported feeling the quake\u003c/a>. No reports of damage were immediately available.\u003c/p>\n\u003cp>According to the USGS, the Calaveras Fault likely produced the earthquakes. The last large quake recorded on the slip-strike fault was a magnitude 6.2 quake that jolted \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/ew1764166600/region-info\">Morgan Hill in 1984.\u003c/a> Cavaleras is believed to have about an 11% chance of producing a larger quake by 2033.\u003c/p>\n\u003cp>The odds that Wednesday’s cluster of quakes is a precursor to a much bigger one are low — USGS data shows there is about a \u003ca href=\"https://earthquake.usgs.gov/earthquakes/eventpage/ew1764166600/oaf/overview\">14% chance\u003c/a> of another one above magnitude 3.0, and those odds drop to 2% for a magnitude 4.0 or higher quake.\u003c/p>\n\u003cp>\u003c/p>\n\u003c/div>\u003c/p>",
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"content": "\u003cp>Just minutes after a minor earthquake shook the \u003ca href=\"https://www.kqed.org/news/tag/bay-area\">Bay Area\u003c/a>, San Francisco officials demonstrated the city’s preparedness for a more serious natural disaster — with what they called the nation’s only dedicated emergency firefighting system.\u003c/p>\n\u003cp>The demonstration also commemorated the anniversary of the 1989 \u003ca href=\"https://www.kqed.org/news/tag/loma-prieta\">Loma Prieta\u003c/a> earthquake — which caused catastrophic consequences to Bay Area residents.\u003c/p>\n\u003cp>The 6.9 magnitude disaster, 36 years ago on Friday, killed 63 people, injured 3,800 and led to the collapse of the upper deck of the San Francisco-Oakland Bay Bridge. A natural gas main rupture in the Marina District caused a \u003ca href=\"http://www.sfmuseum.org/hist2/presidio.html\" target=\"_blank\" rel=\"noopener\">fire\u003c/a> to break out, and the neighborhood’s hydrants ran dry.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>Standing on a fire truck parked outside of Pump Station 2, at 3455 Van Ness Ave., firefighters pumped water from the San Francisco Bay through the pipes, and back into the Bay in a large stream.\u003c/p>\n\u003cp>The test marked the end of an eight-year, $20 million upgrade to Pump Station 2, part of the city’s auxiliary water supply system. The system should now be able to withstand a 7.9 magnitude earthquake, and will allow the city to have a limitless supply of water to respond to fires when a similar quake were to occur again here.\u003c/p>\n\u003cp>\u003cstrong>“\u003c/strong>This building has strengthened walls, a new roof, a new generator, and is designed to withstand a 7.9 magnitude earthquake, and it can operate even when the electric grid is down,” said Dennis Herrera, general manager at the San Francisco Public Utilities Commission.\u003c/p>\n\u003cfigure id=\"attachment_11804757\" class=\"wp-caption aligncenter\" style=\"max-width: 1920px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-11804757\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/10/2021/02/RS41727_earthquake-qut.jpg\" alt=\"Firefighters extinguish fire in the Marina District in San Francisco in October 1989 after the Loma Prieta earthquake erupted in the city.\" width=\"1920\" height=\"1294\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/10/2021/02/RS41727_earthquake-qut.jpg 1920w, https://cdn.kqed.org/wp-content/uploads/sites/10/2021/02/RS41727_earthquake-qut-160x108.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/10/2021/02/RS41727_earthquake-qut-800x539.jpg 800w, https://cdn.kqed.org/wp-content/uploads/sites/10/2021/02/RS41727_earthquake-qut-1020x687.jpg 1020w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\">\u003cfigcaption class=\"wp-caption-text\">Firefighters extinguish fires in the Marina District in San Francisco in October 1989 after the Loma Prieta earthquake erupted in the city. \u003ccite>(Jonathan Nourok/AFP/Getty Images)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>But the water won’t reach all parts of the city equally. In bracing for “the big one,” city officials admit that some parts of the city are more prepared than others.\u003c/p>\n\u003cp>Katie Miller, the director of water capital programs at the San Francisco Public Utilities Commission, said that the western and southern parts of the city, like the Sunset and Richmond districts, have fewer pipes connected to the city’s water supply. Most of the pipe is in older parts of the city, like downtown.\u003c/p>\n\u003cp>“We have already installed about two miles of the pipe, and we have additional funding available for another four miles in the Sunset. But we’re looking to future emergency safety and earthquake response bond funding that will come to the voters in 2026 or 2028,” she said.\u003c/p>\n\u003cp>Mayor Daniel Lurie attended Thursday’s demonstration and told attendees the city is “always preparing” for the “Big One.”\u003c/p>\n\u003cp>“We have made real progress. We’ve upgraded our emergency water systems, strengthened our fire stations, and improved public safety infrastructure,” he said.\u003c/p>\n\u003cp>\u003c/p>\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>Just minutes after a minor earthquake shook the \u003ca href=\"https://www.kqed.org/news/tag/bay-area\">Bay Area\u003c/a>, San Francisco officials demonstrated the city’s preparedness for a more serious natural disaster — with what they called the nation’s only dedicated emergency firefighting system.\u003c/p>\n\u003cp>The demonstration also commemorated the anniversary of the 1989 \u003ca href=\"https://www.kqed.org/news/tag/loma-prieta\">Loma Prieta\u003c/a> earthquake — which caused catastrophic consequences to Bay Area residents.\u003c/p>\n\u003cp>The 6.9 magnitude disaster, 36 years ago on Friday, killed 63 people, injured 3,800 and led to the collapse of the upper deck of the San Francisco-Oakland Bay Bridge. A natural gas main rupture in the Marina District caused a \u003ca href=\"http://www.sfmuseum.org/hist2/presidio.html\" target=\"_blank\" rel=\"noopener\">fire\u003c/a> to break out, and the neighborhood’s hydrants ran dry.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>Standing on a fire truck parked outside of Pump Station 2, at 3455 Van Ness Ave., firefighters pumped water from the San Francisco Bay through the pipes, and back into the Bay in a large stream.\u003c/p>\n\u003cp>The test marked the end of an eight-year, $20 million upgrade to Pump Station 2, part of the city’s auxiliary water supply system. The system should now be able to withstand a 7.9 magnitude earthquake, and will allow the city to have a limitless supply of water to respond to fires when a similar quake were to occur again here.\u003c/p>\n\u003cp>\u003cstrong>“\u003c/strong>This building has strengthened walls, a new roof, a new generator, and is designed to withstand a 7.9 magnitude earthquake, and it can operate even when the electric grid is down,” said Dennis Herrera, general manager at the San Francisco Public Utilities Commission.\u003c/p>\n\u003cfigure id=\"attachment_11804757\" class=\"wp-caption aligncenter\" style=\"max-width: 1920px\">\u003cimg loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-11804757\" src=\"https://cdn.kqed.org/wp-content/uploads/sites/10/2021/02/RS41727_earthquake-qut.jpg\" alt=\"Firefighters extinguish fire in the Marina District in San Francisco in October 1989 after the Loma Prieta earthquake erupted in the city.\" width=\"1920\" height=\"1294\" srcset=\"https://cdn.kqed.org/wp-content/uploads/sites/10/2021/02/RS41727_earthquake-qut.jpg 1920w, https://cdn.kqed.org/wp-content/uploads/sites/10/2021/02/RS41727_earthquake-qut-160x108.jpg 160w, https://cdn.kqed.org/wp-content/uploads/sites/10/2021/02/RS41727_earthquake-qut-800x539.jpg 800w, https://cdn.kqed.org/wp-content/uploads/sites/10/2021/02/RS41727_earthquake-qut-1020x687.jpg 1020w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\">\u003cfigcaption class=\"wp-caption-text\">Firefighters extinguish fires in the Marina District in San Francisco in October 1989 after the Loma Prieta earthquake erupted in the city. \u003ccite>(Jonathan Nourok/AFP/Getty Images)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>But the water won’t reach all parts of the city equally. In bracing for “the big one,” city officials admit that some parts of the city are more prepared than others.\u003c/p>\n\u003cp>Katie Miller, the director of water capital programs at the San Francisco Public Utilities Commission, said that the western and southern parts of the city, like the Sunset and Richmond districts, have fewer pipes connected to the city’s water supply. Most of the pipe is in older parts of the city, like downtown.\u003c/p>\n\u003cp>“We have already installed about two miles of the pipe, and we have additional funding available for another four miles in the Sunset. But we’re looking to future emergency safety and earthquake response bond funding that will come to the voters in 2026 or 2028,” she said.\u003c/p>\n\u003cp>Mayor Daniel Lurie attended Thursday’s demonstration and told attendees the city is “always preparing” for the “Big One.”\u003c/p>\n\u003cp>“We have made real progress. We’ve upgraded our emergency water systems, strengthened our fire stations, and improved public safety infrastructure,” he said.\u003c/p>\n\u003cp>\u003c/p>\n\u003c/div>\u003c/p>",
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"content": "\u003cp>Many of the world’s largest and most devastating \u003ca href=\"https://www.kqed.org/news/tag/earthquake\">earthquakes\u003c/a> strike beneath the ocean, where the lack of sensors makes quick warnings difficult. Most monitoring stations are on land.\u003c/p>\n\u003cp>“If we have a big earthquake under the water, like that Kamchatka earthquake [this summer], our sensors that tell us an earthquake just happened are really quite far away,” said \u003ca href=\"https://seismo.sites.ucsc.edu/emily-brodsky/\">Emily Brodsky\u003c/a>, a geophysicist at UC Santa Cruz. “And so we’re sort of looking through this very fuzzy pair of glasses at the earthquake and making our best guess on what it’s gonna mean in terms of tsunamis or anything else.”\u003c/p>\n\u003cp>New \u003ca href=\"https://www.science.org/doi/10.1126/science.adx6858\">research published Thursday\u003c/a> suggests fiber optic cables on the ocean floor could serve as earthquake sensors, Brodsky said. She \u003ca href=\"https://www.science.org/doi/10.1126/science.aeb1414\">co-authored a commentary\u003c/a> accompanying the paper.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>With 70% of the planet covered by water, using telecommunications infrastructure as seismometers could fill major blind spots in earthquake detection in a relatively affordable and scientifically robust way.\u003c/p>\n\u003cp>While this is not the first paper describing the technique, it pushes the technology to new limits, focusing on how faults rupture underwater. That’s important because researchers could see that the fault was rupturing super fast, casting new light on the physics of earthquakes.\u003c/p>\n\u003cp>To use fiber optic cables this way, researchers partner with a company running the cables — in this case, \u003ca href=\"https://www.verofiber.com/\">Vero Fiber Networks\u003c/a> — and attach a box containing a laser and a computer. The laser sends pulses into the fiber that echo all along its length.[aside postID=news_12057001 hero='https://cdn.kqed.org/wp-content/uploads/sites/10/2025/09/250922-BERKELEY-EARTHQUAKE-KQED-1.jpg']If the cable stretches due to earthquake movements, the light echoes change. The changes can be converted into measurements, giving a fine-grained view of the event. Even in California, which is relatively well-covered by seismometers, stations are spaced several miles apart. Fiber optic sensing allows measurements down to the scale of feet.\u003c/p>\n\u003cp>With this higher resolution, earthquake early warning alerts, like \u003ca href=\"https://www.kqed.org/science/1994754/emergency-alert-phone-earthquake-test-2024-myshake\">Californians receive through MyShake\u003c/a>, could improve.\u003c/p>\n\u003cp>“Traditionally, it’s very, very hard to see for big earthquakes, how long is the fault that’s rupturing, in what direction is it going?” said \u003ca href=\"https://www.usgs.gov/staff-profiles/james-w-atterholt\">James Atterholt\u003c/a>, a seismologist with the U.S. Geological Survey and author on the research paper. “And this technology shows that with modifications, with advancements, that this could be done in real time.”\u003c/p>\n\u003cp>Some experts are skeptical that predicting earthquakes is possible. Others, including Brodsky, are cautiously optimistic.\u003c/p>\n\u003cp>“Just to be clear, no, we do not know how to predict earthquakes. But we do want to study whether or not they’re predictable,” she said. “We are in a totally different place than we were 15 years ago.”\u003c/p>\n\u003cp>Scientists now have better hypotheses for how prediction could work, Brodsky said, but “to a large extent, we’re instrumentally limited and we need the investment. And it’s kind of that simple.”\u003c/p>\n\u003cp>\u003c/p>\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>Many of the world’s largest and most devastating \u003ca href=\"https://www.kqed.org/news/tag/earthquake\">earthquakes\u003c/a> strike beneath the ocean, where the lack of sensors makes quick warnings difficult. Most monitoring stations are on land.\u003c/p>\n\u003cp>“If we have a big earthquake under the water, like that Kamchatka earthquake [this summer], our sensors that tell us an earthquake just happened are really quite far away,” said \u003ca href=\"https://seismo.sites.ucsc.edu/emily-brodsky/\">Emily Brodsky\u003c/a>, a geophysicist at UC Santa Cruz. “And so we’re sort of looking through this very fuzzy pair of glasses at the earthquake and making our best guess on what it’s gonna mean in terms of tsunamis or anything else.”\u003c/p>\n\u003cp>New \u003ca href=\"https://www.science.org/doi/10.1126/science.adx6858\">research published Thursday\u003c/a> suggests fiber optic cables on the ocean floor could serve as earthquake sensors, Brodsky said. She \u003ca href=\"https://www.science.org/doi/10.1126/science.aeb1414\">co-authored a commentary\u003c/a> accompanying the paper.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>With 70% of the planet covered by water, using telecommunications infrastructure as seismometers could fill major blind spots in earthquake detection in a relatively affordable and scientifically robust way.\u003c/p>\n\u003cp>While this is not the first paper describing the technique, it pushes the technology to new limits, focusing on how faults rupture underwater. That’s important because researchers could see that the fault was rupturing super fast, casting new light on the physics of earthquakes.\u003c/p>\n\u003cp>To use fiber optic cables this way, researchers partner with a company running the cables — in this case, \u003ca href=\"https://www.verofiber.com/\">Vero Fiber Networks\u003c/a> — and attach a box containing a laser and a computer. The laser sends pulses into the fiber that echo all along its length.\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>If the cable stretches due to earthquake movements, the light echoes change. The changes can be converted into measurements, giving a fine-grained view of the event. Even in California, which is relatively well-covered by seismometers, stations are spaced several miles apart. Fiber optic sensing allows measurements down to the scale of feet.\u003c/p>\n\u003cp>With this higher resolution, earthquake early warning alerts, like \u003ca href=\"https://www.kqed.org/science/1994754/emergency-alert-phone-earthquake-test-2024-myshake\">Californians receive through MyShake\u003c/a>, could improve.\u003c/p>\n\u003cp>“Traditionally, it’s very, very hard to see for big earthquakes, how long is the fault that’s rupturing, in what direction is it going?” said \u003ca href=\"https://www.usgs.gov/staff-profiles/james-w-atterholt\">James Atterholt\u003c/a>, a seismologist with the U.S. Geological Survey and author on the research paper. “And this technology shows that with modifications, with advancements, that this could be done in real time.”\u003c/p>\n\u003cp>Some experts are skeptical that predicting earthquakes is possible. Others, including Brodsky, are cautiously optimistic.\u003c/p>\n\u003cp>“Just to be clear, no, we do not know how to predict earthquakes. But we do want to study whether or not they’re predictable,” she said. “We are in a totally different place than we were 15 years ago.”\u003c/p>\n\u003cp>Scientists now have better hypotheses for how prediction could work, Brodsky said, but “to a large extent, we’re instrumentally limited and we need the investment. And it’s kind of that simple.”\u003c/p>\n\u003cp>\u003c/p>\n\u003c/div>\u003c/p>",
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"content": "\u003cp>\u003cem>This story was originally published in January 2019. It is being republished after a magnitude 4.3 earthquake centered near Berkeley rattled the Bay Area on Monday morning. Read more\u003ca href=\"https://www.kqed.org/news/12057001/bay-area-earthquake-was-near-fault-thats-overdue-for-intense-quake\"> here\u003c/a>.\u003c/em>\u003c/p>\n\u003cp>On two straight mornings in January 2019, residents awoke to the familiar rock and roll from a\u003ca href=\"https://www.kqed.org/news/11718873/another-morning-another-wake-up-quake-in-the-east-bay-hills\" target=\"_blank\" rel=\"noopener noreferrer\"> cluster of relatively small earthquakes\u003c/a> along the Hayward Fault, across the bay from San Francisco. It’s not the first time, nor will it be the last.\u003c/p>\n\u003cp>While neither the magnitude 3.4 nor 3.5 quakes broke the seismograph, the two events struck in essentially the same spot. Both had epicenters nestled in the Oakland-Berkeley Hills, just a few miles from the UC Berkeley campus.\u003c/p>\n\u003cp>Such cluster quakes always get people wondering if they mean more than the usual random jiggling. To get a read on this, we spoke to earthquake experts with UC Berkeley’s \u003ca href=\"http://earthquakes.berkeley.edu/blog/2015/10/13/weak-stresses-strong-earthquakes.html\" target=\"_blank\" rel=\"noopener noreferrer\">Seismology Lab\u003c/a> about what it means, if anything, when it comes to forecasting the next Big One.\u003c/p>\n\u003cp>According to Peggy Hellweg with UC Berkeley’s Seismology Lab, there’s minor earthquake activity occurring almost continuously along the Hayward Fault, though most of it goes unnoticed.\u003c/p>\n\u003cp>And while January’s “felt quakes” were reported as individual events, they can be thought of as belonging to the same sequence of earthquakes.\u003c/p>\n\u003cp>“I would actually group them together since they’re so close together on the fault and call one the foreshock, and then the one from Thursday morning, the main shock,” Hellweg says.\u003c/p>\n\u003cp>\u003cstrong>What Kind of Fault?\u003c/strong>\u003c/p>\n\u003cp>The trouble with terms like “foreshock” and “aftershock” is that scientists never know how to categorize one or the other until after the shaking settles down.\u003c/p>\n\u003cp>Hellweg says she wouldn’t have been surprised to see tiny quakes or even another of similar size in the days following to finish out the sequence.\u003c/p>\n\u003cp>“If you look at the history of earthquakes along this section of the Hayward Fault, there can be from one to four earthquakes felt by the people who live here,” Hellweg says.\u003c/p>\n\u003cp>\u003cstrong>What do minor “felt quakes” foretell about the likelihood of the next Big One hitting the Hayward Fault?\u003c/strong>\u003c/p>\n\u003cp>Short answer: There’s no way to know for sure.\u003c/p>\n\u003cp>On the one hand, Hellweg says, in the last 20 to 30 years, “no big earthquake has happened on the Hayward Fault associated with one of these little sequences of earthquakes.”\u003c/p>\n\u003cp>But here’s the bad news: pressure has been building up on the Hayward Fault. It’s been more than 150 years since the\u003ca href=\"https://www.kqed.org/science/1933064/map-are-you-in-the-severe-damage-zone-for-the-bay-areas-next-big-earthquake\" target=\"_blank\" rel=\"noopener noreferrer\"> last major earthquake\u003c/a> to rattle the fault, which stretches through the most \u003ca href=\"http://seismo.berkeley.edu/hayward/\">densely populated\u003c/a> stretch of the East Bay.\u003c/p>\n\u003cp>Geological studies put the average interval between big quakes on the Hayward Fault at about 140 years, give or take 50 years. Meaning the Big One could happen any day now or not in the lifetime of many middle-aged residents. Scientists who developed the \u003ca href=\"https://pubs.usgs.gov/fs/2016/3020/fs20163020.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">HayWired\u003c/a>\u003ca href=\"https://pubs.usgs.gov/fs/2016/3020/fs20163020.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"> modeling scenario\u003c/a> estimate that there’s about a one-in-three chance of a magnitude-7 quake on the Hayward within the next 30 years.\u003c/p>\n\u003cp>And here’s the other bad news: the oft-repeated idea that minor temblors serve to relieve pressure on the fault and lessen the chances of a major event, is a myth.\u003c/p>\n\u003cp>On the question of whether it happens tomorrow, Hellweg says, “Do I expect it? No. Would I be surprised? No.”\u003c/p>\n\u003cp>https://twitter.com/thepaintgrammer/status/1085905639077928969\u003c/p>\n\u003cp>\u003cstrong>Where does that leave the current state of the Hayward Fault?\u003c/strong>\u003c/p>\n\u003cp>Reports from the U.S. Geological Survey suggest that damage caused by the next major quake along the Hayward Fault could be \u003ca href=\"https://www.latimes.com/local/lanow/la-me-hayward-fault-20180417-htmlstory.html\" target=\"_blank\" rel=\"noopener noreferrer\">catastrophic\u003c/a>.\u003c/p>\n\u003cp>What concerns UC Berkeley seismologist Roland Burgmann is where recent small quakes occurred on the fault line.\u003c/p>\n\u003cp>“They’re right next to part of the Hayward Fault that — from the kind of research we do here at Berkeley — we know to be the part that’s fully locked,” Burgman says. “That’s the part that, when a really big earthquake — magnitude 7 or so — happens again on the Hayward Fault, it will likely rupture.”\u003c/p>\n\u003cp>Fault lines — or different portions of the same fault — can be classified as \u003ca href=\"https://geomaps.wr.usgs.gov/sfgeo/quaternary/stories/hayward_creep.html\" target=\"_blank\" rel=\"noopener noreferrer\">locked or creeping\u003c/a>. Creeping faults shift slowly over time, and may undergo smaller quakes like the ones observed this week. Locked faults, however, don’t move, causing pressure to build until a large-magnitude earthquake releases it. The Hayward Fault is considered a mixed fault line, with sections that creep and ones that don’t. The ones that don’t pose the biggest danger.\u003c/p>\n\u003cp>“This [latest] pair of events is small, but they’re right next to the sleeping beast of the Hayward Fault that we know is essentially ready to have a big earthquake today or in a couple of decades.”\u003c/p>\n\u003cp>The danger, according to Burgmann, is that a cluster of small quakes adjacent to the locked portion of the fault could be “possible foreshocks” to a major quake. Unfortunately, he says, there’s no real way to predict this scenario.\u003c/p>\n\u003cp>\u003cstrong>Get those earthquake kits ready\u003c/strong>\u003c/p>\n\u003cp>The takeaway here is probably already clear; Burgmann says small quakes are a good signal to get prepared — that whenever we have one, it boosts the probability of another occurring within a week by about 10 percent.\u003c/p>\n\u003cp>“Essentially what that means for people is whenever you feel an earthquake, that’s a good time to check on your earthquake kit.” Burgmann says. “It shouldn’t be a cause for true alarm, but it should be a reason to reassess.”\u003c/p>\n\u003cp>And for what it’s worth: Burgmann muses that after years of studying the fault, a recent series of small shakers on the Hayward finally prompted him to buy earthquake insurance himself.\u003c/p>\n\u003cp>\u003cem>KQED Science Editor Craig Miller contributed to this post.\u003c/em>\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>\u003c/p>\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>\u003cem>This story was originally published in January 2019. It is being republished after a magnitude 4.3 earthquake centered near Berkeley rattled the Bay Area on Monday morning. Read more\u003ca href=\"https://www.kqed.org/news/12057001/bay-area-earthquake-was-near-fault-thats-overdue-for-intense-quake\"> here\u003c/a>.\u003c/em>\u003c/p>\n\u003cp>On two straight mornings in January 2019, residents awoke to the familiar rock and roll from a\u003ca href=\"https://www.kqed.org/news/11718873/another-morning-another-wake-up-quake-in-the-east-bay-hills\" target=\"_blank\" rel=\"noopener noreferrer\"> cluster of relatively small earthquakes\u003c/a> along the Hayward Fault, across the bay from San Francisco. It’s not the first time, nor will it be the last.\u003c/p>\n\u003cp>While neither the magnitude 3.4 nor 3.5 quakes broke the seismograph, the two events struck in essentially the same spot. Both had epicenters nestled in the Oakland-Berkeley Hills, just a few miles from the UC Berkeley campus.\u003c/p>\n\u003cp>Such cluster quakes always get people wondering if they mean more than the usual random jiggling. To get a read on this, we spoke to earthquake experts with UC Berkeley’s \u003ca href=\"http://earthquakes.berkeley.edu/blog/2015/10/13/weak-stresses-strong-earthquakes.html\" target=\"_blank\" rel=\"noopener noreferrer\">Seismology Lab\u003c/a> about what it means, if anything, when it comes to forecasting the next Big One.\u003c/p>\n\u003cp>According to Peggy Hellweg with UC Berkeley’s Seismology Lab, there’s minor earthquake activity occurring almost continuously along the Hayward Fault, though most of it goes unnoticed.\u003c/p>\n\u003cp>And while January’s “felt quakes” were reported as individual events, they can be thought of as belonging to the same sequence of earthquakes.\u003c/p>\n\u003cp>“I would actually group them together since they’re so close together on the fault and call one the foreshock, and then the one from Thursday morning, the main shock,” Hellweg says.\u003c/p>\n\u003cp>\u003cstrong>What Kind of Fault?\u003c/strong>\u003c/p>\n\u003cp>The trouble with terms like “foreshock” and “aftershock” is that scientists never know how to categorize one or the other until after the shaking settles down.\u003c/p>\n\u003cp>Hellweg says she wouldn’t have been surprised to see tiny quakes or even another of similar size in the days following to finish out the sequence.\u003c/p>\n\u003cp>“If you look at the history of earthquakes along this section of the Hayward Fault, there can be from one to four earthquakes felt by the people who live here,” Hellweg says.\u003c/p>\n\u003cp>\u003cstrong>What do minor “felt quakes” foretell about the likelihood of the next Big One hitting the Hayward Fault?\u003c/strong>\u003c/p>\n\u003cp>Short answer: There’s no way to know for sure.\u003c/p>\n\u003cp>On the one hand, Hellweg says, in the last 20 to 30 years, “no big earthquake has happened on the Hayward Fault associated with one of these little sequences of earthquakes.”\u003c/p>\n\u003cp>But here’s the bad news: pressure has been building up on the Hayward Fault. It’s been more than 150 years since the\u003ca href=\"https://www.kqed.org/science/1933064/map-are-you-in-the-severe-damage-zone-for-the-bay-areas-next-big-earthquake\" target=\"_blank\" rel=\"noopener noreferrer\"> last major earthquake\u003c/a> to rattle the fault, which stretches through the most \u003ca href=\"http://seismo.berkeley.edu/hayward/\">densely populated\u003c/a> stretch of the East Bay.\u003c/p>\n\u003cp>Geological studies put the average interval between big quakes on the Hayward Fault at about 140 years, give or take 50 years. Meaning the Big One could happen any day now or not in the lifetime of many middle-aged residents. Scientists who developed the \u003ca href=\"https://pubs.usgs.gov/fs/2016/3020/fs20163020.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">HayWired\u003c/a>\u003ca href=\"https://pubs.usgs.gov/fs/2016/3020/fs20163020.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"> modeling scenario\u003c/a> estimate that there’s about a one-in-three chance of a magnitude-7 quake on the Hayward within the next 30 years.\u003c/p>\n\u003cp>And here’s the other bad news: the oft-repeated idea that minor temblors serve to relieve pressure on the fault and lessen the chances of a major event, is a myth.\u003c/p>\n\u003cp>On the question of whether it happens tomorrow, Hellweg says, “Do I expect it? No. Would I be surprised? No.”\u003c/p>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\n\u003cp>\u003cstrong>Where does that leave the current state of the Hayward Fault?\u003c/strong>\u003c/p>\n\u003cp>Reports from the U.S. Geological Survey suggest that damage caused by the next major quake along the Hayward Fault could be \u003ca href=\"https://www.latimes.com/local/lanow/la-me-hayward-fault-20180417-htmlstory.html\" target=\"_blank\" rel=\"noopener noreferrer\">catastrophic\u003c/a>.\u003c/p>\n\u003cp>What concerns UC Berkeley seismologist Roland Burgmann is where recent small quakes occurred on the fault line.\u003c/p>\n\u003cp>“They’re right next to part of the Hayward Fault that — from the kind of research we do here at Berkeley — we know to be the part that’s fully locked,” Burgman says. “That’s the part that, when a really big earthquake — magnitude 7 or so — happens again on the Hayward Fault, it will likely rupture.”\u003c/p>\n\u003cp>Fault lines — or different portions of the same fault — can be classified as \u003ca href=\"https://geomaps.wr.usgs.gov/sfgeo/quaternary/stories/hayward_creep.html\" target=\"_blank\" rel=\"noopener noreferrer\">locked or creeping\u003c/a>. Creeping faults shift slowly over time, and may undergo smaller quakes like the ones observed this week. Locked faults, however, don’t move, causing pressure to build until a large-magnitude earthquake releases it. The Hayward Fault is considered a mixed fault line, with sections that creep and ones that don’t. The ones that don’t pose the biggest danger.\u003c/p>\n\u003cp>“This [latest] pair of events is small, but they’re right next to the sleeping beast of the Hayward Fault that we know is essentially ready to have a big earthquake today or in a couple of decades.”\u003c/p>\n\u003cp>The danger, according to Burgmann, is that a cluster of small quakes adjacent to the locked portion of the fault could be “possible foreshocks” to a major quake. Unfortunately, he says, there’s no real way to predict this scenario.\u003c/p>\n\u003cp>\u003cstrong>Get those earthquake kits ready\u003c/strong>\u003c/p>\n\u003cp>The takeaway here is probably already clear; Burgmann says small quakes are a good signal to get prepared — that whenever we have one, it boosts the probability of another occurring within a week by about 10 percent.\u003c/p>\n\u003cp>“Essentially what that means for people is whenever you feel an earthquake, that’s a good time to check on your earthquake kit.” Burgmann says. “It shouldn’t be a cause for true alarm, but it should be a reason to reassess.”\u003c/p>\n\u003cp>And for what it’s worth: Burgmann muses that after years of studying the fault, a recent series of small shakers on the Hayward finally prompted him to buy earthquake insurance himself.\u003c/p>\n\u003cp>\u003cem>KQED Science Editor Craig Miller contributed to this post.\u003c/em>\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"order": 1
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"title": "Code Switch / Life Kit",
"info": "\u003cem>Code Switch\u003c/em>, which listeners will hear in the first part of the hour, has fearless and much-needed conversations about race. Hosted by journalists of color, the show tackles the subject of race head-on, exploring how it impacts every part of society — from politics and pop culture to history, sports and more.\u003cbr />\u003cbr />\u003cem>Life Kit\u003c/em>, which will be in the second part of the hour, guides you through spaces and feelings no one prepares you for — from finances to mental health, from workplace microaggressions to imposter syndrome, from relationships to parenting. The show features experts with real world experience and shares their knowledge. Because everyone needs a little help being human.\u003cbr />\u003cbr />\u003ca href=\"https://www.npr.org/podcasts/510312/codeswitch\">\u003cem>Code Switch\u003c/em> offical site and podcast\u003c/a>\u003cbr />\u003ca href=\"https://www.npr.org/lifekit\">\u003cem>Life Kit\u003c/em> offical site and podcast\u003c/a>\u003cbr />",
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"id": "commonwealth-club",
"title": "Commonwealth Club of California Podcast",
"info": "The Commonwealth Club of California is the nation's oldest and largest public affairs forum. As a non-partisan forum, The Club brings to the public airwaves diverse viewpoints on important topics. The Club's weekly radio broadcast - the oldest in the U.S., dating back to 1924 - is carried across the nation on public radio stations and is now podcasting. Our website archive features audio of our recent programs, as well as selected speeches from our long and distinguished history. This podcast feed is usually updated twice a week and is always un-edited.",
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"source": "Commonwealth Club of California"
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"google": "https://podcasts.google.com/feed/aHR0cDovL3d3dy5jb21tb253ZWFsdGhjbHViLm9yZy9hdWRpby9wb2RjYXN0L3dlZWtseS54bWw",
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"id": "forum",
"title": "Forum",
"tagline": "The conversation starts here",
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"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/Forum-Podcast-Tile-703x703-1.jpg",
"imageAlt": "KQED Forum with Mina Kim and Alexis Madrigal",
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"order": 9
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"id": "freakonomics-radio",
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"meta": {
"site": "radio",
"source": "WNYC"
},
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"apple": "https://itunes.apple.com/us/podcast/freakonomics-radio/id354668519",
"tuneIn": "https://tunein.com/podcasts/WNYC-Podcasts/Freakonomics-Radio-p272293/",
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"id": "fresh-air",
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"apple": "https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?s=143441&mt=2&id=214089682&at=11l79Y&ct=nprdirectory",
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"hidden-brain": {
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"airtime": "SUN 7pm-8pm",
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"source": "NPR"
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"how-i-built-this": {
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"airtime": "SUN 7:30pm-8pm",
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"link": "/radio/program/how-i-built-this",
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"hyphenacion": {
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"tagline": "Where conversation and cultura meet",
"info": "What kind of no sabo word is Hyphenación? For us, it’s about living within a hyphenation. Like being a third-gen Mexican-American from the Texas border now living that Bay Area Chicano life. Like Xorje! Each week we bring together a couple of hyphenated Latinos to talk all about personal life choices: family, careers, relationships, belonging … everything is on the table. ",
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"order": 15
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"jerrybrown": {
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"title": "The Political Mind of Jerry Brown",
"tagline": "Lessons from a lifetime in politics",
"info": "The Political Mind of Jerry Brown brings listeners the wisdom of the former Governor, Mayor, and presidential candidate. Scott Shafer interviewed Brown for more than 40 hours, covering the former governor's life and half-century in the political game – and Brown has some lessons he'd like to share. ",
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"order": 18
},
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},
"latino-usa": {
"id": "latino-usa",
"title": "Latino USA",
"airtime": "MON 1am-2am, SUN 6pm-7pm",
"info": "Latino USA, the radio journal of news and culture, is the only national, English-language radio program produced from a Latino perspective.",
"imageSrc": "https://ww2.kqed.org/radio/wp-content/uploads/sites/50/2018/04/latinoUsa.jpg",
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"link": "/radio/program/latino-usa",
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"apple": "https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?s=143441&mt=2&id=79681317&at=11l79Y&ct=nprdirectory",
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"rss": "https://feeds.npr.org/510016/podcast.xml"
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},
"marketplace": {
"id": "marketplace",
"title": "Marketplace",
"info": "Our flagship program, helmed by Kai Ryssdal, examines what the day in money delivered, through stories, conversations, newsworthy numbers and more. Updated Monday through Friday at about 3:30 p.m. PT.",
"airtime": "MON-FRI 4pm-4:30pm, MON-WED 6:30pm-7pm",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/Marketplace-Podcast-Tile-360x360-1.jpg",
"officialWebsiteLink": "https://www.marketplace.org/",
"meta": {
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"source": "American Public Media"
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},
"masters-of-scale": {
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"title": "Masters of Scale",
"info": "Masters of Scale is an original podcast in which LinkedIn co-founder and Greylock Partner Reid Hoffman sets out to describe and prove theories that explain how great entrepreneurs take their companies from zero to a gazillion in ingenious fashion.",
"airtime": "Every other Wednesday June 12 through October 16 at 8pm (repeats Thursdays at 2am)",
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"meta": {
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"rss": "https://rss.art19.com/masters-of-scale"
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},
"mindshift": {
"id": "mindshift",
"title": "MindShift",
"tagline": "A podcast about the future of learning and how we raise our kids",
"info": "The MindShift podcast explores the innovations in education that are shaping how kids learn. Hosts Ki Sung and Katrina Schwartz introduce listeners to educators, researchers, parents and students who are developing effective ways to improve how kids learn. We cover topics like how fed-up administrators are developing surprising tactics to deal with classroom disruptions; how listening to podcasts are helping kids develop reading skills; the consequences of overparenting; and why interdisciplinary learning can engage students on all ends of the traditional achievement spectrum. This podcast is part of the MindShift education site, a division of KQED News. KQED is an NPR/PBS member station based in San Francisco. You can also visit the MindShift website for episodes and supplemental blog posts or tweet us \u003ca href=\"https://twitter.com/MindShiftKQED\">@MindShiftKQED\u003c/a> or visit us at \u003ca href=\"/mindshift\">MindShift.KQED.org\u003c/a>",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/Mindshift-Podcast-Tile-703x703-1.jpg",
"imageAlt": "KQED MindShift: How We Will Learn",
"officialWebsiteLink": "/mindshift/",
"meta": {
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"source": "kqed",
"order": 12
},
"link": "/podcasts/mindshift",
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"google": "https://podcasts.google.com/feed/aHR0cHM6Ly9mZWVkcy5tZWdhcGhvbmUuZm0vS1FJTkM1NzY0NjAwNDI5",
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},
"morning-edition": {
"id": "morning-edition",
"title": "Morning Edition",
"info": "\u003cem>Morning Edition\u003c/em> takes listeners around the country and the world with multi-faceted stories and commentaries every weekday. Hosts Steve Inskeep, David Greene and Rachel Martin bring you the latest breaking news and features to prepare you for the day.",
"airtime": "MON-FRI 3am-9am",
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"onourwatch": {
"id": "onourwatch",
"title": "On Our Watch",
"tagline": "Deeply-reported investigative journalism",
"info": "For decades, the process for how police police themselves has been inconsistent – if not opaque. In some states, like California, these proceedings were completely hidden. After a new police transparency law unsealed scores of internal affairs files, our reporters set out to examine these cases and the shadow world of police discipline. On Our Watch brings listeners into the rooms where officers are questioned and witnesses are interrogated to find out who this system is really protecting. Is it the officers, or the public they've sworn to serve?",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/On-Our-Watch-Podcast-Tile-703x703-1.jpg",
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"officialWebsiteLink": "/podcasts/onourwatch",
"meta": {
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"source": "kqed",
"order": 11
},
"link": "/podcasts/onourwatch",
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"google": "https://podcasts.google.com/feed/aHR0cHM6Ly9mZWVkcy5ucHIub3JnLzUxMDM2MC9wb2RjYXN0LnhtbD9zYz1nb29nbGVwb2RjYXN0cw",
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"rss": "https://feeds.npr.org/510360/podcast.xml"
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},
"on-the-media": {
"id": "on-the-media",
"title": "On The Media",
"info": "Our weekly podcast explores how the media 'sausage' is made, casts an incisive eye on fluctuations in the marketplace of ideas, and examines threats to the freedom of information and expression in America and abroad. For one hour a week, the show tries to lift the veil from the process of \"making media,\" especially news media, because it's through that lens that we see the world and the world sees us",
"airtime": "SUN 2pm-3pm, MON 12am-1am",
"imageSrc": "https://ww2.kqed.org/radio/wp-content/uploads/sites/50/2018/04/onTheMedia.png",
"officialWebsiteLink": "https://www.wnycstudios.org/shows/otm",
"meta": {
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"source": "wnyc"
},
"link": "/radio/program/on-the-media",
"subscribe": {
"apple": "https://itunes.apple.com/us/podcast/on-the-media/id73330715?mt=2",
"tuneIn": "https://tunein.com/radio/On-the-Media-p69/",
"rss": "http://feeds.wnyc.org/onthemedia"
}
},
"pbs-newshour": {
"id": "pbs-newshour",
"title": "PBS NewsHour",
"info": "Analysis, background reports and updates from the PBS NewsHour putting today's news in context.",
"airtime": "MON-FRI 3pm-4pm",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/PBS-News-Hour-Podcast-Tile-360x360-1.jpg",
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},
"link": "/radio/program/pbs-newshour",
"subscribe": {
"apple": "https://itunes.apple.com/us/podcast/pbs-newshour-full-show/id394432287?mt=2",
"tuneIn": "https://tunein.com/radio/PBS-NewsHour---Full-Show-p425698/",
"rss": "https://www.pbs.org/newshour/feeds/rss/podcasts/show"
}
},
"perspectives": {
"id": "perspectives",
"title": "Perspectives",
"tagline": "KQED's series of daily listener commentaries since 1991",
"info": "KQED's series of daily listener commentaries since 1991.",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2025/01/Perspectives_Tile_Final.jpg",
"officialWebsiteLink": "/perspectives/",
"meta": {
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"source": "kqed",
"order": 14
},
"link": "/perspectives",
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"npr": "https://www.npr.org/podcasts/432309616/perspectives",
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"planet-money": {
"id": "planet-money",
"title": "Planet Money",
"info": "The economy explained. Imagine you could call up a friend and say, Meet me at the bar and tell me what's going on with the economy. Now imagine that's actually a fun evening.",
"airtime": "SUN 3pm-4pm",
"imageSrc": "https://ww2.kqed.org/radio/wp-content/uploads/sites/50/2018/04/planetmoney.jpg",
"officialWebsiteLink": "https://www.npr.org/sections/money/",
"meta": {
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"source": "npr"
},
"link": "/radio/program/planet-money",
"subscribe": {
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"apple": "https://itunes.apple.com/us/podcast/planet-money/id290783428?mt=2",
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"rss": "https://feeds.npr.org/510289/podcast.xml"
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},
"politicalbreakdown": {
"id": "politicalbreakdown",
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