Wednesday’s waves “hit Monterey Bay first and then lagged behind a little bit into the San Francisco Bay Area,” Behringer said.
Farther north, officials are keeping a close eye on Crescent City in Del Norte County. A tsunami warning, indicating the possibility of dangerous coastal flooding and powerful currents, was in effect there before being downgraded to an advisory Wednesday morning.
“We’ve recorded wave heights of 3.5 to almost 4 feet in Crescent City,” said Danny Schmiegel, a meteorologist with the National Weather Service office in Eureka. “So they’ve been coming in, and the periods between those waves are quite long as well, within multiple hours apart from each other.”
Crescent City has historically been vulnerable to tsunamis. Dozens of boats were destroyed following a tsunami from the devastating Japan earthquake in 2011. This time, they were prepared, Schmiegel said.
“We were able to let folks know who had boats and had that kind of investment in that area to get their boats out to a depth of 180 feet, which at that point the tsunami will just pass under them with no harm,” he said.
KQED’s Jared Servantez contributed to this report.