Officials at the United States Geological Survey have tracked over 300 earthquakes beneath Washington State's Mt Rainier from ...

More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano since 2009.

The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as ...

Hundreds of small earthquakes were detected at Mount Rainier on Tuesday in the largest such swarm at the active stratovolcano since 2009, according to the U.S. Geological Survey. The swarm began ...

Seismicity has decreased” from 30 events per hour at the peak to a few per hour as of Saturday morning, the U.S. Geological ...

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 ...

Geologists detected hundreds of small earthquakes below the 14,400-foot active volcano in Washington state. It is the largest earthquake swarm in 15 years.

Mount Rainier experienced its largest earthquake swarm on record this week, but seismic activity is now significantly ...

The volcano alert level remained at normal, and the earthquakes have been too small to be felt at the surface, the agency ...

Mount Rainier, the active volcano towering above southwestern Washington state, started rumbling — very lightly — on Tuesday. A swarm of small earthquakes was detected under the mountain ...

This is now the largest recorded earthquake swarm at Mount Rainier since seismic monitoring at the volcano began in 1982, the Cascades Volcano Observatory said. With quakes ongoing, the swarm has ...

The so-called earthquake swarm at Mount Rainier dwindled Friday but has surpassed the last large event at the volcano in 2009, the USGS said.