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Hawaii: Roots of Fire Previous Broadcasts

KQED Plus: Fri, Mar 1, 2013 -- 3:30 AM

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.

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TV Technical Issues

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    • KQED TV All Channels: Planned outage late Fri/early Sat 1/14 midnight-2am

      All KQED television channels will be off the air late Friday/early Saturday 1/14 beginning at midnight for approximately two hours to perform maintenance and upgrades to our electrical system. These improvements will help KQED maintain and continue our broadcast service to the community. We will return to our regularly scheduled programs as soon as work […]

    • Wed 12/28: KQET DT25 Over the Air signal restored

      UPDATE: signal was restored apx 6pm (DT25.1 through 25.3) We are aware that our transmitter servicing the Watsonville/Monterey/Salinas area, KQET, is off the air. Engineers are on their way from San Francisco to check it out. Estimated time for repairs not yet known.

    • Planned KQET (DT25) outage: early Sun 12/18 apx 1am

      (DT25.1 through 25.3) Due to maintenance and software update work being done by one of the paid signal providers, KQET-25 will need to go off the air for apx 15-30 minutes at apx 1am.

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

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