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

Small earthquakes have rocked the active volcano Mt. Rainier in the Cascade Mountain Range this month, sending shockwaves ...

The USGS reports no other unusual activity is happening at Mt. Rainier at this time. Earthquake swarms happen once or twice per year at the volcano, though this is the largest in over a decade.

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 ...

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 ...

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.

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 ...

While earthquake swarms are rare, they do occur at Mount Rainier, which is one of the most seismically active volcanoes in the region.

A swarm of small earthquakes was detected beneath Mount Rainier on July 8, 2025, but officials say there is no current threat of an eruption.

Mount Rainier saw a swarm of hundreds of small earthquakes that started early Tuesday morning.