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Hawaii: Roots of Fire Previous Broadcasts

KQED World: Thu, Jun 2, 2011 -- 9:00 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.

Repeat Broadcasts:

  • KQED World: Thu, Jun 2, 2011 -- 12:00 PM
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TV Technical Issues

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    TV Technical Issues
    • 4/17/16 ? KQED Plus (DT54) Over the Air Issue: Virtual ID missing

      We are aware that many Over the Air (OTA) viewers are currently unable to tune in our channels on the usual DT54.1 through 54.5. This is due to a problem with our PSIP generator, which engineers hope to have repaired on Monday 4/18. In the meantime, OTA viewers might be able to watch any of […]

    • Tues 12/15: KQET DT25 signal restored

      (DT25.1, 25.2, 25.3) The new part arrived this morning, was successfully installed, and our DT25 Over The Air signal restored apx 12:30pm. Due to the outage, some OTA viewers may need to do a rescan to re-acquire the DT25 signal. Paid provider services should have restored their signal by now as well. Thanks for your […]

    • Sun 12/13: KQET DT25 Over the Air signal down

      (DT25.1, 25.2, 25.3) UPDATE Mon 12/14 4:50pm: Unfortunately, we are unable to repair our fried equipment, and will need to order/find a replacement. At this point, we do know the signal will definitely not return tonight, and do not yet have an estimated time re: when it will be back. Thanks for your patience and […]

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

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