Scientists have recorded the "largest" earthquake swarm at Mount Rainier in Washington ... Here's what to know about Mount ...

Beginning July 8, a swarm of earthquakes hit Mount Rainier. According to the United States Geological Survey (USGS) Cascades ...

A total of 895 earthquakes have shaken the ground beneath Washington’s highest mountain since the beginning of July.

Mount Rainier experienced its largest earthquake swarm on record this week, but seismic activity is now significantly dropping. Scientists with the USGS Cascades Volcano Observatory say the quakes ...

The largest recorded earthquake beneath Mount Rainier was a magnitude 3.9 in 1973. Earthquakes with a magnitude of over 3.0 also occurred in 1976, 1990, 2002 and 2004.

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

Environment Mount Rainier earthquake swarms decline in activity even as strongest registered Friday Published: Jul. 12, 2025, 12:23 p.m.

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. The ...

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.

Mt. Rainier records 'largest' earthquake swarm since 2009. What would happen if it erupted Story by Andre Byik, Kitsap Sun • 9h ...

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). According to @PNSN, hundreds of events have ...

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). According to @PNSN, hundreds of events have ...