Most of the U.S. volcanoes that have been making themselves known since spring woke up a bit, shook themselves off and then ...

Mount Rainier was experiencing "the most significant seismic activity" at the volcano in more than 15 years as an "earthquake ...

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

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

Mount Rainier on Tuesday experienced its largest seismic activity since 2009, with a swarm of small earthquakes detected.

CORE3, Central Oregon Ready Responsive Resilient, a project creating a dedicated multi-agency coordination center for ...

KOIN 6 Chief Meteorologist Josh Cozart explains the active conditions seen over the Pacific Northwest this Tuesday, July 8, 2025.

KOIN 6 Chief Meteorologist Josh Cozart takes a closer look at the earthquakes seen around Mount Rainier on Tuesday, July 8, 2025.