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Hawaii: Roots of Fire Previous Broadcasts

KQED World: Sat, Jun 8, 2013 -- 11:30 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
    • Mon 6/13: RESOLVED ? KQED Plus (KQEH) Transmitter Off the Air (DT54.1 through 54.5)

      UPDATE: The signal was restored apx 5pm Monday. Most TVs will have recovered the signal on their own, but some viewers may need to do a rescan in order to re-acquire the signal. – – – – – – – – – – – – Our KQEH transmitter in the San Jose area has suffered […]

    • Mon 5/09/16: KQEH DT54 planned short outages

      (DT54-1 through 54-5) Monday 5/09 The DT54 Over the Air signal will need to switch from main to auxiliary levels at some point Monday (most likely early afternoon) for the safety of the crew working on another station’s equipment on the tower, then back to the main antenna late-afternoon when work is completed. The change […]

    • KQED DT9: planned overnight outage, Over the Air early 5/04

      (DT9-1, 9-2, and 9-3) Early Wed 5/04, beginning 12:30am We will be shutting down our KQED DT9 Over the Air Sutro Tower (SF) transmission at apx. 12:30am early Wednesday May 4th, in order to install some new equipment. We expect to be back on the air between 4am-6am Wednesday morning. Most receivers will automatically re-acquire […]

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

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