A 2.7 magnitude earthquake was felt in Anacortes, Washington on Sunday night.

A swarm of offshore earthquakes near the Pacific Northwest poses no threat to land, says Harold Tobin of the Pacific Northwest Seismic Network.

Smaller quakes from secondary faults—which are not included in national seismic hazard modeling—occur more frequently than ...

Roughly 18 small earthquakes were recorded off the coast of Washington early Sunday, geologists reported. The first and ...

Scientists agree that a powerful earthquake will eventually hit the Seattle region, and when it does, the city’s daily routines, infrastructure, and skyline will be tested in ways that are hard to ...

A magnitude 3.2 earthquake hit close to Monroe, Washington, early Tuesday, with light shaking felt in major metropolitan Seattle, according to the United States Geological Survey (USGS). At a depth of ...