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Cascadia Subduction Zone Database

September 27, 2022
map of offshore Oregon and Washington with many criss-crossing lines
Marine trackline locations and links to available data downloads are also compiled within the Cascadia database.

The following is a 2022 compilation of datasets relevant to Cascadia subduction zone earthquake hazards and tectonics useful for emergency management officials, geologists, and others interested in understanding the unique geologic dynamics that create hazards to communities in the region.

The ArcGIS online map and downloadable map package include both raster images and shapefiles; many of the shapefiles contain links to immediately downloadable data. Here we outline the features and datasets compiled.