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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
    • Thurs 3/05, DT54-1 thru DT54-5: 2 planned, extremely brief Over the Air outages

      (DT54.1 through DT54.5) Our Over the Air signals from our KQEH transmitter on Monument Peak (the DT54s) will need to be switched from our Main antenna to our Auxillary antenna while climbers inspect the tower for possible maintenance needs. Once the inspection is done, we will switch back. The two switches will account for two […]

    • KQED Plus on 710 currently dark on Comcast/Xfinity

      We are aware that Comcast/Xfinity is currently not transmitting KQED Plus in HD on channel 710. KQED Plus is airing in SD on channel 10. Comcast is also aware of the issue, and working on fixing it. Thank you for your patience.

    • 3 channels currently dark via Comcast/Xfinity

      We are aware that Comcast/Xfinity is currently not transmitting KQED Plus on channel 10, KQED V-Me on channel 191, or KQED Kids on channel 192. Comcast is also aware of the issue, and working on fixing it. Thank you for your patience.

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

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