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NOVA: Killer Landslides

Courtesy of Spc. Matthew Sissel, 122D PAOC
Air Force Staff Sgt. Patrick McGuire, of Coeur d'Alene, Idaho, is knee deep in mud while trying to remove debris from where a house once stood in the hopes of finding missing persons following the Oso mudslide.

Airs Wednesday, Sept. 6, 2017 at 9 p.m. on KPBS TV

Explore the forces behind deadly landslides — and the danger zones for the next big one

In less than two minutes in March, a one-square-mile field of debris slammed into the Washington state community of Oso, killing 41 and destroying nearly 50 homes.

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Drawing on analyses of other recent landslides around the world, geologists are investigating what triggered the deadliest U.S. landslide in decades and whether climate change is increasing the risk of similar disasters around the globe.

In "Killer Landslides," as NOVA surveys landslide danger zones, discover how and why landslides happen, and how radar monitoring technologies could help predict landslides and issue life-saving warnings.

This episode originally aired November 2014.

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Explore the science behind the headlines in PBS’ premier science series. With compelling stories and spectacular visuals, NOVA programs demystify science and technology for viewers of all ages and spotlight people involved in scientific pursuits.