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Hawaii: Roots of Fire Previous Broadcasts

KQED Plus: Thu, Feb 28, 2013 -- 9:30 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.

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TV Technical Issues

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    TV Technical Issues
    • Comcast channel moves, Monterey/Salinas & Sacramento/Fairfield

      As of Tuesday 8/25, Comcast/Xfinity has moved four of KQED’s channels to new numbers in two of its service areas. The new info is: Monterey-Salinas: 371 – KQED World 372 – KQED Kids 373 – KQED Life 374 – KQED V-Me Sacramento, Fairfield, Rio Vista, Travis AFB and Vacaville: 390 – KQED World 391 – […]

    • Sutro Tower Annual Maintenance, week of 8/24 daytime

      (may affect Over the Air signal for KQED DT9.1, 9.2, 9.3) The Sutro Tower team will be doing their annual tower check and maintenance work this week, meaning that all stations may be switching back and forth from their main antenna to their auxiliary antenna between 9am and 4pm. Work should conclude no later than […]

    • Comcast/Xfinity Ch10 audio, Monday 7/20 evening

      UPDATE: Comcast was able to resolve their technical glitch apx 10:45pm * * * * * We are aware that at least during the early part of the evening of Monday 7/20, the audio is out of sync on Comcast/Xfinity channel 10, their basic cable service. This problem still exists as of 8:10pm. We have […]

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

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