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

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

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 ...

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

More than 300 tremors were recorded below Mount Rainier over the course of three days. Scientists say they were too weak for humans to feel.

Alex Iezzi from the Cascades Volcano Observatory joins FOX 12 Now with an update on the status of Mt. Rainier's earthquake swarms and what it means for the mountain and the region.

The so-called earthquake swarm at Mount Rainier dwindled Friday but has surpassed the last large event at the volcano in 2009, the USGS said.

The so-called earthquake swarm at Mount Rainier dwindled Friday but has surpassed the last large event at the volcano in 2009, the USGS said.

Over 300 earthquakes detected under Mount Rainier in July. Learn about safety, eruption risk, and whether it’s safe to visit the active volcano this summer.

SEATTLE (AP) — Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington’s Mount Rainier but say there is no indication that the cluster of quakes is cause ...

Geologists are continuing to monitor Mount Rainier in Washington state days after the first earthquake swarm since 2009, with this year's event more powerful than the last one recorded 15 years ago.