New evidence suggests current estimates about tsunami size and how quickly waves make it to shore may be too high and too ...

For U.S. earthquake scientists, Japan's 'megaquake' warning renewed worries about when and how to warn the public if they find clues that the 'big one' might be coming for the West COast.

KING COUNTY, Wash. — A second earthquake of at least 2.5 magnitude in 12 hours struck Thursday afternoon in western Washington. The 3.2 magnitude earthquake was recorded about 4.5 miles ...

On April 13, 1949, at 11:55 am, Tacoma was hit by a magnitude 7.1 earthquake. Bob Anderle (far right) looks down at the broken gable and the facing bricks that fell from one of the dormer windows ...

WASHINGTON STATE — A 4.3 magnitude earthquake was felt throughout western Washington Sunday evening. According to Pacific Northwest Seismic Network (PNSN), the earthquake happened at 7:21 p.m.

4.3 magnitude earthquake tests Washington's emergency alert system. If the quake exceeded magnitude 5 an alert would have given people near the epicenter a five seconds heads up.

North Hollywood shaken by earthquake, but no reports of damage made 01:54. An earthquake struck the northwest part of Washington state near the U.S.-Canada border early Monday morning, officials ...

Are you prepared if an earthquake were to shake western Washington? That was the focus of the Great Washington ShakeOut Thursday. The annual event focuses on preparing people for an earthquake and ...

Since Feb. 18, Washington has seen seven earthquakes with a magnitude above 2.5, including the strongest earthquake to hit the state in five years, a magnitude 4.5 that struck Orcas Island early ...

Nothing built prior to 2005 was designed to withstand the long, strong earthquake Cascadia will produce, according to Corina Allen, the chief hazards geologist at the Washington Geological Survey ...

Hundreds of public schools across Washington are located in areas where they could suffer damage in a major earthquake. But more than a decade after the state set out to evaluate school seismic ...