An earthquake swarm at Mount Rainier is considered one of the largest ever recorded for the volcano, according to the United ...

A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

Volcanoes in the United States that have been active since spring woke up, brushed themselves off, and then went back to ...

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

The National Tsunami Warning Center has warned that the quake, which occurred at 12:55 p.m. local time, could generate ...

A worldwide Android smartphone-based earthquake detection and early warning system can detect seismic activity in real time.

A 6.6 magnitude earthquake struck on Friday near the southwestern shores of Samoa in the Pacific, according to the United ...