Donate

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.

Become a KQED sponsor

TV Technical Issues

TV
    TV Technical Issues
    • KQET (DT25) Over the Air: Wed 8/27

      We are aware of the break-up issues for our DT25 Over the Air signal in the Monterey/Salinas area. This will also affect viewers of any cable or satellite signal provider using that transmitter as their source. Engineers are working on the problem.

    • Week of 8/25: Sutro Tower work (including KQED 9 Over the Air)

      (Affects several San Francisco TV & Radio stations, including KQED 9.1, 9.2 & 9.3) During the week of August 25, Monday through Friday, between 9am and 4pm, several TV and radio stations will be switching to their Auxiliary antennas. This is being done so that the tower crew can perform routine maintenance on the regular […]

    • KQET Off Air Sun 8/03 morning

      (DT25.1, 25.2, 25.3) KQET DT25 was off the air for a portion of Sunday morning, due to the transmitter taking a power hit. The signal has been restored. Most receivers should have re-acquired our signal once it returned, but a few Over the Air viewers may need to do a rescan in order to restore […]

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

KQED DTV Channels

KQED 9

KQED 9
Comcast 9 and 709
Digital 9.1, 54.2 or 25.1

All widescreen and HD programs

KQED Plus

Channel 54
Comcast 10 and 710
Digital 9.2, 54.1 or 25.2

KQED Plus, formerly KTEH

KQED Life

KQED Life
Comcast 189
Digital 54.3

Arts, food, how-to, gardening, travel

KQED World

KQED World
Comcast 190
Digital 9.3

History, world events, news, science, nature

v-me

V-Me
Comcast 191 & 621
Digital 54.5 or 25.3

24-hour national Spanish-language network

KQED Kids

KQED Kids
Comcast 192
Digital 54.4

Quality children's programming parents love too