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Sean Lahusen, PhD

Sean Lahusen is a Research Geologist at the Geology, Minerals, Energy, and Geophysics Science Center. He received his B.S. in Geology from Western Washington University and his PhD from the University of Washington. Since joining the USGS in 2020, his research has focused on the geologic properties and geomorphologic processes that control landslide susceptibility in Cascadia and coastal Alaska.

Sean works to better understand how landslides affect landscapes and people. He uses field observations, lidar and optical imagery analysis, and numerical modeling to study landslide susceptibility, frequency, and triggering mechanisms. His current research projects include examining geologic and structural controls on deep-seated landslide density in the Oregon Coast Range, using 3-D slope stability models to estimate shaking intensity during past great earthquakes along the Cascadia Subduction Zone, and constraining hazard from large bedrock landslides following rapid glacial retreat in coastal Alaska.

*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government