On the flanks of Washington State Mount Rainier, a spike in seismic rumbling has revived an old, unsettling question for the ...

Mount Rainier’s seismic sensors showed unusual activity for several days, prompting widespread attention online, but experts told KIRO 7 News the readings came from a malfunctioning instrument rather ...

Record Numbers Define the Current Volcanic Crisis The Ring of Fire has witnessed over 50 volcanic eruptions between mid-2023 ...

“It’s now a larger swarm than anything we’ve seen since we’ve been (seismic) monitoring anything at Mount Rainier,” Alex Iezzi, a research geophysicist, said in an interview Thursday. Researchers ...

PORTLAND Ore. (KPTV) - Mount Rainier’s ongoing earthquake swarm intensified Wednesday with he strongest quake yet: a magnitude 2.3 event recorded beneath the summit. According to the U.S. Geological ...

Earlier this month, Mount Rainier experienced its most powerful seismic swarm ever recorded by the U.S. Geological Survey. More than 1,000 earthquakes have been detected at the mountain since July 8 — ...

Researchers detected the largest Mount Rainier earthquake swarm on record. Over 400 small quakes have been located as of Friday and many more have been detected. The temblors have shown no evidence ...

The Nisqually Glacier and the start of the Nisqually River are visible from a viewpoint along the Nisqually Vista Trail on Friday, June 6, 2025, at Mount Rainier National Park. The recent swarm of ...