Mount Rainier is rattling with the most powerful earthquake swarm scientists have ever recorded at the volcano. Why it ...

Mount Rainier was experiencing "the most significant seismic activity" at the volcano in more than 15 years as an "earthquake swarm" hit the site starting on Tuesday.

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

An earthquake 'swarm' comprised of hundreds of miniature earthquakes hit Mt. Rainier and the Cascade mountain in July.

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

Over 200 earthquakes have been detected around Mount Rainier, Washington, raising eyebrows during the biggest swarm of tremors in nearly two decades.

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

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 tremors were recorded below Mount Rainier over the course of three days. Scientists say they were too weak for ...

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 ...

For the past two years, she’s been hitting the highest heights in every contiguous state in the country. “Mount Rainier, ...

Earthquakes are common at Mount Rainier, happening about nine times every month, the agency said. Swarms of earthquakes happen once or twice per year. Larger swarms are more rare – the last major ...