A light, 4.1-magnitude earthquake struck in Southern California on Sunday, according to the United States Geological Survey.

The temblor happened at 10:34 a.m. Atlantic time about 4 miles southwest of Tallaboa, Puerto Rico, data from the agency shows ...

Monitoring stations around Mount Adams noted nine earthquakes ranging from magnitude 0.9 to 2.0 near the volcano between ...

A preliminary earthquake measuring 3.9 on the Richter scale hit 31.1 kilometers southeast of Port Angeles, Washington near ...

This earthquake is larger than much of the recent seismic activity around western Washington, per initial reports.