Mount Rainier is rattling with the most powerful earthquake swarm scientists have ever recorded at the volcano. Why it matters: Rainier's reputation as the Cascades' most dangerous volcano means even ...

The volcano last erupted in 2015, producing 450-foot-thick lava flows, but because of its remote location, it is not a threat ...

A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

Google's Android Earthquake Alerts system uses your phone's accelerometer to provide crucial seconds of warning before ...

One of the most famous mountains in Washington, Mount Rainier, has been rumbling over the last day due to the amplified ...

A 7.3 magnitude earthquake struck off the coast of Alaska on July 16, 2025. While significant, the 1964 Prince William Sound ...

The United States Geological Survey (USGS) shows lava fountains shooting up high in the latest episode of an ongoing eruption ...

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

Earth's continents may look fixed on a globe, but they've been drifting, splitting and reforming over billions of years—and they still are. Our new study reveals fresh evidence of rhythmic pulses of ...

This is now the largest recorded earthquake swarm at Mount Rainier since seismic monitoring at the volcano began in 1982, the ...

The series of earthquakes is the first major swarm of seismic events since 2009. Is it safe if you’re planning on visiting?

Mount Rainier, the active volcano towering above southwestern Washington state, started rumbling — very lightly — on Tuesday.