Earthquakes in Washington

Washington faces two very different threats: the offshore Cascadia Subduction Zone, capable of a magnitude-9 megaquake, and shallow crustal faults like the Seattle Fault that run directly beneath populated areas.

This page tracks live USGS seismic activity across Washington — 11 cities including Seattle, Tri-Cities, Spokane. The map and list above update continuously; open any city for a closer view with its own recent-quake and felt-radius detail.