SEATTLE (AP) — Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington's Mount Rainier but say there is no indication that the cluster of quakes is cause for ...

Scientists have recorded the "largest" earthquake swarm at Mount Rainier in Washington state since 2009, the U.S. Geological Survey reported. The swarm at the second-most seismically active volcano in ...

More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano since 2009. As of Thursday, July 10, 334 earthquakes had been identified at ...

A swarm of hundreds of small earthquakes has been detected rumbling deep below Mt. Rainier in Washington State early Tuesday morning, though geologists stress there is no cause for concern. The quakes ...

An earthquake swarm began at Mount Rainier on Tuesday (July 8), with the region hit by more than 300 small quakes, the most significant seismicity at the volcano since 2009, the US Geological Survey ...

Researchers detected the largest Mount Rainier earthquake swarm on record. Over 400 small quakes have been located as of Friday and many more have been detected. The temblors have shown no evidence ...