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Hawaii: Roots of Fire Previous Broadcasts

KQED Plus: Fri, Jul 26, 2013 -- 12:30 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.

Repeat Broadcasts:

  • KQED World: Sun, Jul 28, 2013 -- 6:30 PM
  • KQED World: Sun, Jul 28, 2013 -- 2:30 PM
  • KQED World: Sun, Jul 28, 2013 -- 7:30 AM
  • KQED World: Sat, Jul 27, 2013 -- 7:30 PM
  • KQED Plus: Sat, Jul 27, 2013 -- 5:00 PM
  • KQED World: Sat, Jul 27, 2013 -- 1:00 PM
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TV Technical Issues

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    TV Technical Issues
    • KQED all channels, planned overnight maintenance: early Fri 12/19 midnight-6am

      (this includes all DT9, DT54 and DT25 channels, along with all paid services) We will be doing upgrade and maintenance work in our Master Control area during the overnight hours of late Thurs/early Fri 12/19. Work will begin shortly after midnight early Friday, which may last until 6am, though we hope to finish earlier. This […]

    • KQED Plus OTA ? Optimistically planned maintenance: Fri 12/05 mid-morning

      (DT54.1 thru 54.5) Assuming that the weather and road conditions permit, we plan to do a bit of maintenance on our KQEH transmitter the morning of Friday 12/05… hopefully 10am-11am-ish, but could be a bit later. Most of the work should not affect the outgoing signal, but there will need to be a cable swap […]

    • Mon 11/03/14: Work on KQED Plus tower (DT54)

      Another station needs to do maintenance on its equipment on the tower on Monument Peak, requiring that we switch our DT54 Over the Air signal from the main antenna to the auxiliary when the work starts, then back to the main antenna at the conclusion. These switches should cause momentary outages only, and most receivers […]

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

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