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

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

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

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 ...

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

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 ...

More than 300 tremors were recorded below Mount Rainier over the course of three days. Scientists say they were too weak for ...

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.

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 ...

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

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