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

The United States Geological Survey (USGS) shows lava fountains shooting up high in the latest episode of an ongoing eruption ...

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

Lava in Hawaii, seismic shaking in Alaska and underwater rumblings near Oregon. Scientists say it’s not the end of the world, ...

: 6 small earthquakes shake ground in N.J. on same day A small earthquake caused minor shaking in parts of northern New ...

The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as ...

The United States and Japan concluded a weeklong disaster-response exercise that simulated a magnitude 7 earthquake, the ...

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