Add Yahoo as a preferred source to see more of our stories on Google. Scientists have recorded the "largest" earthquake swarm at Mount Rainier in Washington state since 2009, the U.S. Geological ...

Add Yahoo as a preferred source to see more of our stories on Google. An active volcano, Mount Rainier has erupted thousands of times during its relatively young life. Photograph by Philip Kramer, ...

As of July 10, 334 earthquakes had been identified over the course of two days at Washington's Mount Rainier.

PORTLAND Ore. (KPTV) - A swarm of small earthquakes was detected early Tuesday under Mount Rainier, prompting increased monitoring by scientists, though officials emphasize there is no current threat ...