UT researchers published a study in Science on June 26 that provided insight into the behavior of slow slip earthquakes, which release energy gradually and produce no detectable shaking.  Regular ...

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

A string of earthquakes has made some wonder if this enormous West Coast volcano is about to erupt, but here's what seismologists have to say.

The U.S. Geological Survey Cascades Volcano Observatory said the swarm began early Tuesday at the 14,410-foot volcano near ...

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

More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano ...

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

In California, where the next "Big One" is an always-looming threat, some lessons learned from the 1925 Santa Barbara quake resonate even 100 years later, experts say.