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landslides

Active layer detachments in the Brooks Range, Alaska
Posted inResearch Spotlights

Ice Lenses May Cause Many Arctic Landslides

by Morgan Rehnberg 13 August 202120 October 2021

When permafrost thaw reaches concentrations of ice underneath the surface, it may trigger local soil instability.

Aerial view of a large mudslide that flowed down a forested hillslope and into a small community
Posted inScience Updates

Satellites Support Disaster Response to Storm-Driven Landslides

by R. Emberson, D. B. Kirschbaum, T. Stanley, P. Amatya and S. Khan 9 August 202119 November 2021

Extreme precipitation can trigger deadly landslides. Satellite-based tools provide regional perspectives on landslide hazards, help assess risks in near-real time, and guide emergency responses.

The research vessel CCGS Hudson in Southwind Fjord, Baffin Island, with the iceberg that initiated a submarine landslide in the background.
Posted inNews

An Iceberg May Have Initiated a Submarine Landslide

by Andrew Chapman 20 July 20218 November 2022

A new study shows that icebergs may initiate submarine landslides when they collide with the seafloor.

Debris flows during the largest rainstorm following the 2009 Station Fire in California.
Posted inResearch Spotlights

The Wildfire One-Two: First the Burn, Then the Landslides

Aaron Sidder, freelance science writer by Aaron Sidder 22 June 202128 September 2021

Severe wildfires strip away plant cover and reduce the soil’s ability to hold water. A new study develops a model to better understand landslide risk following a burn.

Map of the study site in the northern California Coast Ranges.
Posted inEditors' Highlights

Thickness and Strength of Slow-moving Landslides Revealed

by O. Marc 22 April 20216 February 2023

Hundreds of slow-moving landslides’ deformation patterns were inverted to obtain their thickness and frictional strength, revealing that larger landslides are weaker and thinner than smaller ones.

People stand atop debris from a huge slump landslide in Uganda.
Posted inNews

Landslides Mar the “Pearl of Africa”

by H. Mafaranga 19 April 20212 August 2022

Behind Uganda’s lavish beauty, climate change has taken its toll: Death, destroyed properties, and displaced communities increase as above-normal rainfall floods the country.

Buildings cling to a soil cliff cut away by a flood.
Posted inNews

Development and Climate Change Contribute to a Himalayan Tragedy

by T. V. Padma 3 March 202112 April 2022

Infrastructure projects like roads and dams destabilize slopes and compound the effects of glacial floods and avalanches, scientists say.

Image of the southern part of the Orientale Basin with yellow patches indicating boulders fields
Posted inEditors' Highlights

The Tumbling Boulders of Orientale Basin

by Laurent G. J. Montési 8 February 20213 May 2022

Mapping boulder fields and boulder tracks highlights the seismic hazard still present on the Moon.

View up a 95-meter-long debris flow flume facility, with cameras and other instruments in the foreground
Posted inScience Updates

A New Era of Debris Flow Experiments in the Oregon Woods

by M. K. Obryk, D. L. George and B. B. Mirus 26 January 202129 September 2021

What do a backhoe, expanding foam, half-ton concrete blocks, and a 100-meter-long hillslope slide have in common? All were part of reviving the U.S. Geological Survey’s experimental debris flow flume.

A view of landslides in the mountains of Puerto Rico after the extreme rainfall from Hurricane Maria in 2017
Posted inFeatures

A Slippery Slope: Could Climate Change Lead to More Landslides?

Jane Palmer, Science Writer by Jane Palmer 23 November 202031 March 2022

Scientists investigate whether warming temperatures and changing rainfall patterns could be triggering more landslides in mountainous areas.

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