UW News

landslide


October 22, 2020

Simple actions can help people survive landslides, UW analysis shows

aerial view of mud and trees with building remains

Simple actions can dramatically improve a person’s chances of surviving a landslide, show records from 38 landslides in the U.S. and around the world. People who survived landslides tended to have moved upstairs or to higher ground, among other key actions.


September 16, 2020

Most landslides in western Oregon triggered by heavy rainfall, not big earthquakes

bare slope and mountains in distance

Researchers at the University of Washington, Portland State University and the University of Oregon have shown that deep-seated landslides in the central Oregon Coast Range are triggered mostly by rainfall, not by large offshore earthquakes. The open-access paper was published Sept. 16 in Science Advances. “Geomorphologists have long understood the importance of rainfall in triggering…


December 22, 2015

Dating historic activity at Oso site shows recurring major landslides

person standing in mud

The large, fast-moving mudslide that buried much of Oso, Washington in March 2014 was the deadliest landslide in U.S. history. Since then it’s been revealed that this area has experienced major slides before, but it’s not known how long ago they occurred. University of Washington geologists analyzed woody debris buried in earlier slides and used…


July 22, 2014

Oso disaster had its roots in earlier landslides

An aerial view of the slide site at Oso, Washington, from March 31, 2014.

The UW is part of a new study that shows the disastrous landslide that killed 43 people at Oso, Washington, involved the “remobilization” of a 2006 landslide in the same place.


April 4, 2014

UW researchers, radar company conduct aerial surveys of Oso site

Black and white image of slide

UW researchers made some of the first aerial surveys over the Oso mudslide, using radar technology to map the condition immediately after the slide.


March 31, 2014

UW experts part of technical team investigating Snohomish County mudslide

An aerial photo of the Oso, Wash., mudslide.

A national team jointly led by a University of Washington geotechnical engineer and an engineering geologist will investigate what caused the March 22 mudslide in Snohomish County and what effects the disaster had on the nearby residential communities.