Identifying and Reducing Landslide Risk

Wednesday, April 17, 2019

Landslides are a hazard that affects every U.S. state and territory, causing at least $1 billion in damage and 25–50 deaths annually in the United States. They include mudslides and debris flows, rockfalls, and slope failures, and occur due to both natural and human causes. The impacts of landslides can include damaged property, blocked or destroyed roads and other infrastructure, dammed streams and rivers (increasing flood risk), habitat loss, and loss of life. They can also occur in conjunction with other natural hazards such as floods, tsunami, earthquakes, and volcanic activity. Assessing and monitoring landslide risk helps to guide decisions that can reduce human and infrastructural vulnerability.

In this webinar, experts in landslide characterization, mapping, and risk reduction discuss landslide impacts in the United States; landslide research and mapping at the federal, state, and local levels; funding mechanisms for landslide mapping; and strategies for engaging communities in landslide risk reduction.

Our speakers are:

Additional Resources

Search the Geological Surveys Database for reports and factsheets about landslides.

Media Partners and Sponsors

Thank you to our media partners, the American Geophysical Union, Association of American State Geologists, Association of Environmental & Engineering Geologists, American Meteorological Society, Geological Society of America, International Association of Emergency Managers, National Association of State Boards of Geology, Natural Hazard Mitigation Association, Seismological Society of America, Soil Science Society of America, and the U.S. Geological Survey (USGS).

This webinar is generously sponsored by:

Identifying and Reducing Landslide Risk: Science to Reduce Landslide Risk

Lawmakers reintroduce bill to protect communities from landslides

IES Soils Glyph

Lawmakers in both the House and Senate reintroduced legislation to improve research and coordination needed to help communities prepare for and respond to landslides. The bill, called the National Landslide Preparedness Act (S. 529/H.R. 1261), would create a unified national program run by USGS to better understand the risks and reduce losses from landslide hazards. It would also officially establish the 3D Elevation Program, managed by USGS in coordination with other federal agencies and nonfederal entities.

An Introduction to Landslides and Mass Wasting

This course is designed to be an introduction to the subject of landslides or mass wasting. Landslides or mass wasting occur in both solid bedrock and in poorly-consolidated sediments. Concerning the latter, loose sands, clays and soft shales can prove to be quite problematic. These type of strata are highlighted in our discussions. We will start with a basic review of soil mechanics and strength of materials, as a precursor to our coverage of the topic of landslides.


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