SKAMANIA COUNTY, Wash. (KPTV) - 400 earthquakes have been recorded under Mount St. Helens since mid-July, according to the US Geological Survey (USGS). This is the longest series of tremors since the ...

About 400 earthquakes have rumbled under Mount St. Helens since mid-July, the largest chain of shakes since the volcano finished erupting in 2008, the U.S. Geological Survey reported last week. Small ...

Although earthquakes under Mount St. Helens are not uncommon, the recent seismic activity is the largest short-term increase in earthquakes since the volcano last erupted in 2008.

Geologists have spotted a heightened period of seismic activity on Mount Saint Helens recently. Is it getting ready to rock? Mount Saint Helens in Washington, which notoriously and cataclysmically ...

VANCOUVER, Wash. (KPTV/Gray News) - Mount St. Helens, which notoriously erupted in 1980, has been showing signs of increased seismic activity lately, according to the U.S. Geological Survey. It’s ...