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Mount Rainier was experiencing "the most significant seismic activity" at the volcano in more than 15 years as an "earthquake ...
While considered an active volcano, Mount Rainier hasn’t erupted in at least a century, possibly much longer. The U.S ...
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 ...
A spike in earthquakes at Mount Adams, a volcano in Washington state, prompted scientists to install additional monitoring instruments to assess the seismic activity.
Earthquake scientists are learning warning signs of the 'big one.' When should they tell the public?
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.
Washington's ShakeAlert earthquake early warning network will officially go live statewide on May 4, but won't be fully completed until 2025.
Earlier this month, Washington joined California and Oregon in using the U.S. Geological Survey’s ShakeAlert system for earthquake early warning. The program has been in the works since 2006.
On Tuesday, hundreds of earthquakes were detected, with depths ranging from 1.2 to 3.7 miles below the summit.
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