USGS, NOAA, FEMA

U.S. Geological Survey
Data Series 236
Version 1.0

Seaside, Oregon, Tsunami Pilot Study—Modernization of FEMA Flood Hazard Maps: GIS Data

Near- and Far-field Tsunami Sources

Far-field sources used in the tsunami models for Seaside, Oregon, are located in the Kuril-Kamchatka, Aleutian-Alaska, and southern Chile subduction zones. The main near-field source is the Cascadia subduction zone, immediately offshore of Washington, Oregon, and northern California. Numbers identify Facility for the Analysis and Comparison of Tsunami Simulations (FACTS) inundation model runs. Plate boundaries from Coffin and others (1998).

tsunami sources in the Pacific Rim

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