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Landslide Hazards

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.

News

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Announcement: Subduction Zone Science Workshop - January 10–11, 2023

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The Monitor Newsletter - Vol. 9 | Issue November 2022

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The Monitor Newsletter - Vol. 8 | Issue Fall 2022

Publications

Postfire debris flow hazards—Tips to keep you safe

Often referred to as “mudflows,” debris flows are a type of landslide made up of a rapidly moving mixture of dirt, rocks, trees, and water (and sometimes ash) that start on a hillside and travel downvalley. They can easily overflow channels and severely damage houses, vehicles, or other structures. Areas burned by wildfires are especially susceptible to these hazards, which can be triggered by sto

Landslides triggered by the August 14, 2021, magnitude 7.2 Nippes, Haiti, earthquake

The August 14, 2021, magnitude 7.2 Nippes, Haiti, earthquake triggered thousands of landslides on the Tiburon Peninsula. The landslides directly caused fatalities and damage and impeded response efforts by blocking roads and causing other infrastructure damage. Adverse effects of the landslides likely will continue for months to years. This report presents an assessment of potential postearthquake

Science

Interactive U.S. Landslide Data Maps

Interactive U.S. Landslide Data Maps with access to GIS data.
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Interactive U.S. Landslide Data Maps

Interactive U.S. Landslide Data Maps with access to GIS data.
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Cameron Peak, Colorado, Fire: Flooding and Debris Flows - July 20, 2021

On Thursday, August 13, 2020, at approximately 1:45 PM MDT, the Cameron Peak fire was reported in steep, rugged terrain 15 miles southwest of Red Feather Lakes, Colorado, near Cameron Pass. The fire spread rapidly due to extreme temperatures, strong winds, and high fuel loads. The largest wildfire in Colorado history, the Cameron Peak fire burned 845 square kilometers (sq km) on the Arapaho and...
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Cameron Peak, Colorado, Fire: Flooding and Debris Flows - July 20, 2021

On Thursday, August 13, 2020, at approximately 1:45 PM MDT, the Cameron Peak fire was reported in steep, rugged terrain 15 miles southwest of Red Feather Lakes, Colorado, near Cameron Pass. The fire spread rapidly due to extreme temperatures, strong winds, and high fuel loads. The largest wildfire in Colorado history, the Cameron Peak fire burned 845 square kilometers (sq km) on the Arapaho and...
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Glenwood Canyon, Colorado, Flooding and Debris Flows: 2021

Summer storms on the Grizzly Creek burn area have resulted in repeated flooding and debris flows that are having enormous impacts in Glenwood Canyon. This Story Map collection summarizes the June and July events.
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Glenwood Canyon, Colorado, Flooding and Debris Flows: 2021

Summer storms on the Grizzly Creek burn area have resulted in repeated flooding and debris flows that are having enormous impacts in Glenwood Canyon. This Story Map collection summarizes the June and July events.
Learn More