The U.S. Geological Survey Cascades Volcano Observatory said the swarm began early Tuesday at the 14,410-foot volcano near ...

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

While considered an active volcano, Mount Rainier hasn’t erupted in at least a century, possibly much longer. The U.S ...

Geologists are continuing to monitor Mount Rainier in Washington state days after the first earthquake swarm in more than 15 ...

A magnitude 2.3 earthquake was recorded under Mount Rainier on Wednesday, the strongest yet in a swarm of over 229 quakes this week. USGS says there's no signs of impending eruption.

A lenticular cloud forms over Mount Rainier, considered an active volcano rising 14,410 feet above sea level, as viewed from Reflection Lakes on August 29, 2024, near Ashford, Washington.

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 ...

"Mount Rainier is well monitored by a dense network of seismic, infrasound, GPS, and webcam stations," the USGS said. "No other changes are apparent at the volcano at this time.

Mount Rainier, which the U.S. Geological Survey considers the second most dangerous volcano in the Pacific Northwest (behind Mount St. Helens), shuddered with a swarm of small earthquakes that ...

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 ...