The Pacific Northwest Seismic Network confirmed a magnitude 3.5 earthquake struck the region near Coulee City and Grand Coulee Dam in eastern Washington state. The network reported the earthquake struck about 8:48 on Monday morning. KREM-TV reports the earthquake was …
A magnitude-4.3 earthquake that rumbled under Washington state’s Cascade Range early Wednesday was “not a great advertisement” for an early warning system undergoing tests, an official said. The system noticed the quake 18 seconds late, said John Vidale, director of …
A magnitude 3.4 earthquake occurred at 2:51 a.m. Wednesday about 10 miles north of Mount St. Helens. The Pacific Northwest Seismic Network reports mild shaking was felt in Longview, Castle Rock and Morton. The University of Washington reports the quake …
