Hundreds of earthquakes have been detected at Mount Rainier so far Tuesday morning in the largest such swarm at the active stratovolcano since 2009, according to the U.S. Geological Survey.
The swarm began shortly before 1:30 a.m. near Mount Rainier’s summit, with the largest earthquake being a 1.7 magnitude, the USGS said on X just after 9:30 a.m. Tuesday.
“Currently, there is no indication that the level of earthquake activity is cause for concern, and the alert level and color code for Mount Rainier remain at GREEN / NORMAL,” the agency said in a separate statement…