Donate

Hawaii: Roots of Fire Previous Broadcasts

KQED Plus: Tue, Feb 14, 2012 -- 10:00 PM

This documentary goes down below the Hawaiian Islands in a search for the hidden forces that drive the planet's largest and most active volcanic system. It follows earth scientists as they work among the volcanoes of the Big Island of Hawaii, pursuing clues and compiling evidence in a quest to shed new light on the mysterious inner Earth process that has been producing giant volcanoes in the middle of the Pacific Ocean for more than 75 million years.
Scientists have long been puzzled over the source of the huge quantities of lava erupting out of Hawaii's massive volcanoes. Does the lava come from just below the Earth's crust? Or does it come from much deeper, perhaps even as far down as the Earth's core, some 1800 miles below the surface? The film focuses on an international team of scientists who boldly take on these key questions with a major drilling project into the flanks of Mauna Kea, Hawaii's tallest volcano. As their work progresses, another group of scientists embarks on a huge seismic study that deploys instruments on the islands and the seafloor surrounding them. After years of painstaking research, startling new discoveries are made. Not only do the scientists determine where the lava is coming from, but they solve other long-standing mysteries about the workings of Hawaii's magnificent volcanoes.

Repeat Broadcasts:

  • KQED Plus: Wed, Feb 15, 2012 -- 4:00 AM
Become a KQED sponsor

TV Technical Issues

TV
    TV Technical Issues
    • early Thurs 9/29 1am-6am: planned KQET/DT25 outage

      (DT25-1 through DT25-3) Late Wed/early Thurs 9/29 1am, the KQET DT25 transmitter will be turned off for maintenance and electrical upgrades. The plan is that the signal should be restored at approximately 6am. Most Over the Air TVs will automatically restore the signal once the transmitter is turned back on. However, a few viewers may […]

    • early Mon 9/26: planned KQEH/DT54 Over the Air outage

      UPDATE: This morning’s maintenance took place at 8:36am, with the signal restored at 8:45am. (DT54-1 through DT54-5) At some point early Monday morning Sept 26th (before 9am), the KQEH transmitter will be turned off for about 10 minutes for maintenance. Because of the short duration, most TVs will automatically restore the signal once the transmitter […]

    • early Tues 9/13: KQEH DT54 (KQED Plus) planned overnight outage

      UPDATE: power was restored at 6:45am Tuesday. Most TVs will restore the channels automatically, but a few viewers may need to do a rescan. – – – – – – – – – – – – – – – – (DT54-1 through 54-5) late Monday/early Tuesday 9/13 The DT54 Over the Air signal will be […]

To view previous issues and how they were resolved, go to our TV Technical Issues page.

KQED DTV Channels

KQED 9, KQET

KQED 9 / KQET

Channels 9.1, 54.2, 25.1
XFINITY 9 and HD 709
Wave 9 and HD 164
DirecTV, Dish Network, AT&T U-verse: Channel # may vary, labeled as KQED, or as KQET in the 831 area code

All HD programs

KQED Plus, KQET

KQED Plus / KQET

Channels 54.1, 9.2, 25.2
XFINITY 10 and HD 710
Wave 10
DirecTV, Dish Network, AT&T U-verse: IF this channel provided to customer, channel # may vary, labeled as KQEH

KQED Plus, formerly KTEH

KQED Life

KQED Life

Channel 54.3
XFINITY 189
Wave 157

Arts, food, how-to, gardening, travel

KQED World

KQED World

Channel 9.3
XFINITY 190
Wave 156

History, world events, news, science, nature

v-me

V-Me

Channel 54.5 & 25.3
XFINITY 191 & 621
Wave 154

24-hour national Spanish-language network

KQED Kids

KQED Kids

Channel 54.4
XFINITY 192
Wave 155

Quality children's programming parents love too