SEATTLE (AP) — Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington’s Mount Rainier ...

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

The last significant earthquake at Mount Rainier occurred in 2009, and rumbled on for three days. More than 1,000 seismic events were recorded with the most substantial registering a 2.3 magnitude.

A "swarm" of earthquakes began at Mount Rainier in Washington in the early morning hours on Tuesday with hundreds of quakes detected so far, making it the largest such event at the volcano since 2009.

Mount Rainier experienced its largest earthquake swarm since 2009 on Tuesday. USGS reported hundreds of small quakes under the surface near the stratovolcano's summit . The agency said there was ...

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.

An earthquake swarm began at Mt. Rainier, WA, at 1:29 am PDT on July 8. Map shows current swarm (orange) with all earthquakes located since 2020 (blue).

Now that that’s out of the way, the Cascades Volcano Observatory with the U.S. Geological Survey said Tuesday morning that a “swarm of earthquakes” had been detected at Mount Rainier ...