Landslide Hazards
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The primary objective of the National Landslide Hazards Program is to reduce long-term losses from landslide hazards by improving our understanding of the causes of ground failure and suggesting mitigation strategies.
Glenwood Canyon Flooding and Debris Flows
A new geonarrative (Esri Story Map) summarizes debris flows along and on I-70 in Glenwood Canyon, Colorado, in 2021.
Learn MoreRainfall-Induced Landslides in Puerto Rico
View information about the more than 70,000 landslides that were triggered across Puerto in September 2017 by Hurricane María.
Puerto RicoQuick Links
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Emergency Assessment of Post-Fire Debris-Flow Hazards
Earthquake-Triggered Ground-Failure Inventories
All Research TopicsNews
First Draft of the SZ4D Implementation Plan
Members of the Subduction Zones in 4-Dimensions (SZ4D) initiative are pleased to present to you the first draft of the SZ4D implementation plan.
The Monitor newsletter - Vol. 4 | Issue Fall 2021
In this issue: Kīlauea Volcano eruption, geomagnetism hazards, debris flow reports, benefits of coral reefs.
Opportunity to Provide Feedback for SZ4D Program
To those interested in USGS SZS and the SZ4D Initiative (Subduction Zones in Four Dimensions)...
Publications
Geologic controls of slow-moving landslides near the U.S. West Coast
Slow-moving landslides, often with nearly imperceptible creeping motion, are an important landscape shaper and a dangerous natural hazard across the globe, yet their spatial distribution and geologic controls are still poorly known owing to a paucity of detailed, large-area observations. Here, we use interferometry of L-band satellite radar images...
Xu, Yuankun; Schulz, William; Lu, Zhong; Kim, Jinwook; Baxstrom, Kelli Wadsworth
Hazard analysis of landslides triggered by Typhoon Chata’an on July 2, 2002, in Chuuk State, Federated States of Micronesia
More than 250 landslides were triggered across the eastern volcanic islands of Chuuk State in the Federated States of Micronesia by torrential rainfall from tropical storm Chata’an on July 2, 2002. Landslides triggered during nearly 20 inches of rainfall in less than 24 hours caused 43 fatalities and the destruction or damage of 231 structures,...
Harp, Edwin L.; Reid, Mark E.; Michael, John A.
Preliminary assessment of the wave generating potential from landslides at Barry Arm, Prince William Sound, Alaska
We simulated the concurrent rapid motion of landslides on an unstable slope at Barry Arm, Alaska. Movement of landslides into the adjacent fjord displaced fjord water and generated a tsunami, which propagated out of Barry Arm. Rather than assuming an initial sea surface height, velocity, and location for the tsunami, we generated the tsunami...
Barnhart, Katherine R.; Jones, Ryan P.; George, David L.; Coe, Jeffrey A.; Staley, Dennis M.