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Advisory Committee on Landslides (ACL)

By Landslide Hazards Program

The Advisory Committee on Landslides was created in 2021 by legislation authorizing the National Landslide Preparedness Act.

Learn more about the National Landslide Preparedness Act
Media
mud and vegetation on hillslopes above houses
Sources/Usage: Public Domain. View Media Details
Maria Landslide damage after Hurricane Maria in Utuado Municipality, Puerto Rico. The hurricane triggered more than 70,000 landslides across the territory. Credit: Erin Bessette-Kirton, USGS

The Advisory Committee on Landslides provides advice and recommendations to the Secretary of the Interior through the Interagency Coordinating Committee on Landslide Hazard (ICCLH) on the implementation of the National Landslide Preparedness Act. The Advisory Committee’s membership and procedures are compliant with the Federal Advisory Committee Act (FACA).

Media
Image: Oso, Washington Landslide
Sources/Usage: Public Domain. View Media Details
The 2014 Oso landslide in northwest Washington. This event caused tragic loss of life and destruction of property in the community of Steelhead Haven. Credit: Mark Reid, USGS

ACL meetings are announced on this website and published in the Federal Register in compliance with the notification requirement of section 10(a)(2) of the FACA. 

Read the 2024 ACL charter. 

Membership

Media
Barry Arm of Harriman Fjord, Prince William Sound, Alaska
Sources/Usage: Public Domain. View Media Details
Barry Arm Landslide, Alaska. USGS scientists work with state and federal partners to monitor this slow-moving landslide, which has the potential to generate tsunamis in Prince William Sound. Credit: Christian E. Zimmerman, USGS

Federal Register Notification – Request for Nominations for Members To Serve on the Advisory Committee on Landslides. We are happy to accept nominations of qualified members to serve in future terms on a rolling basis.

ACL Reports

ACL Subcommittee on Advancing Landslide Science Applications for Public Safety Feb 2026

ACL Subcommittee on Landslide Science and Technology Gaps Feb 2026

ACL Meetings

March 4-5, 2026, ACL In-Person Meeting 

| Federal Register Notice | Agenda |

 

April 1-2, 2025, ACL In-Person Meeting 

| Federal Register Notice | Agenda | Minutes | Meeting Materials

 

January 16th, 2025, ACL Virtual Meeting 

| Federal Register Notice | Agenda | Minutes | Meeting Materials

 

Related

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Executive Summary Landslide hazards are present in all 50 States and most U.S. territories, and they affect lives, property, infrastructure, and the environment. Landslides are the downslope move­ment of earth materials under the force of gravity. They can occur without any obvious trigger. Widespread or severe land­slide events are often driven by such hazards as hurricanes, earthquakes...
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Executive Summary Natural hazards—including earthquakes, tsunamis, volcanic eruptions, landslides, hurricanes, droughts, floods, wildfires, geomagnetic storms, and pandemics—can wreak havoc on human communities, the economy, and natural resources for years following an initial event. Hazards can claim lives and cause billions of dollars in damage to homes and infrastructure as well as...
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K. A. Ludwig, David W. Ramsey, Nathan J. Wood, A.B. Pennaz, Jonathan W. Godt, Nathaniel G. Plant, Nico Luco, Todd A. Koenig, Kenneth W. Hudnut, Donyelle K. Davis, Patricia R. Bright
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Executive Summary The mission of the U.S. Geological Survey (USGS) in natural hazards is to develop and apply hazard science to help protect the safety, security, and economic well-being of the Nation. The costs and consequences of natural hazards can be enormous, and each year more people and infrastructure are at risk. USGS scientific research—founded on detailed observations and...
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Robert R. Holmes, Lucile M. Jones, Jeffery C. Eidenshink, Jonathan W. Godt, Stephen H. Kirby, Jeffrey J. Love, Christina A. Neal, Nathaniel G. Plant, Michael L. Plunkett, Craig S. Weaver, Anne Wein, Suzanne C. Perry
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National landslide hazards mitigation strategy : a framework for loss reduction National landslide hazards mitigation strategy : a framework for loss reduction

No abstract available.
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National Landslide Hazards Mitigation Strategy : a framework for loss reduction National Landslide Hazards Mitigation Strategy : a framework for loss reduction

No abstract available.
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Elliott C. Spiker, Paula L. Gori
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Related

National strategy for landslide loss reduction National strategy for landslide loss reduction

Executive Summary Landslide hazards are present in all 50 States and most U.S. territories, and they affect lives, property, infrastructure, and the environment. Landslides are the downslope move­ment of earth materials under the force of gravity. They can occur without any obvious trigger. Widespread or severe land­slide events are often driven by such hazards as hurricanes, earthquakes...
Authors
Jonathan W. Godt, Nathan J. Wood, Alice Pennaz, Connor M. Dacey, Benjamin B. Mirus, Lauren N. Schaefer, Stephen L. Slaughter
By
Natural Hazards Mission Area

Science for a risky world—A U.S. Geological Survey plan for risk research and applications Science for a risky world—A U.S. Geological Survey plan for risk research and applications

Executive Summary Natural hazards—including earthquakes, tsunamis, volcanic eruptions, landslides, hurricanes, droughts, floods, wildfires, geomagnetic storms, and pandemics—can wreak havoc on human communities, the economy, and natural resources for years following an initial event. Hazards can claim lives and cause billions of dollars in damage to homes and infrastructure as well as...
Authors
K. A. Ludwig, David W. Ramsey, Nathan J. Wood, A.B. Pennaz, Jonathan W. Godt, Nathaniel G. Plant, Nico Luco, Todd A. Koenig, Kenneth W. Hudnut, Donyelle K. Davis, Patricia R. Bright
By
Natural Hazards Mission Area

U.S. Geological Survey natural hazards science strategy— Promoting the safety, security, and economic well-being of the Nation U.S. Geological Survey natural hazards science strategy— Promoting the safety, security, and economic well-being of the Nation

Executive Summary The mission of the U.S. Geological Survey (USGS) in natural hazards is to develop and apply hazard science to help protect the safety, security, and economic well-being of the Nation. The costs and consequences of natural hazards can be enormous, and each year more people and infrastructure are at risk. USGS scientific research—founded on detailed observations and...
Authors
Robert R. Holmes, Lucile M. Jones, Jeffery C. Eidenshink, Jonathan W. Godt, Stephen H. Kirby, Jeffrey J. Love, Christina A. Neal, Nathaniel G. Plant, Michael L. Plunkett, Craig S. Weaver, Anne Wein, Suzanne C. Perry
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geomagnetism Program, Landslide Hazards Program, Earth Resources Observation and Science (EROS) Center, Earthquake Science Center, Geologic Hazards Science Center

National landslide hazards mitigation strategy : a framework for loss reduction National landslide hazards mitigation strategy : a framework for loss reduction

No abstract available.
Authors
Elliott C. Spiker, Paula L. Gori
By
Natural Hazards Mission Area, Landslide Hazards Program, Geologic Hazards Science Center

National Landslide Hazards Mitigation Strategy : a framework for loss reduction National Landslide Hazards Mitigation Strategy : a framework for loss reduction

No abstract available.
Authors
Elliott C. Spiker, Paula L. Gori
By
Natural Hazards Mission Area, Landslide Hazards Program, Geologic Hazards Science Center
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