SAN DIEGO COUNTY, CA - A preliminary 2.2 magnitude quake was detected near Pine Valley Saturday morning, according to the U.S ...

HUMBOLDT COUNTY, CA - the U.S. Geological Survey reported that a preliminary 3.9 magnitude quake occurred near Ferndale Saturday morning.

A magnitude 3.4 earthquake was centered in Dublin Friday morning, the largest in the area in more than two weeks.

The earthquake swarm that has shaken San Ramon for more than two months appears to be over, scientists said Monday. But when ...

Seismic activity has returned to a California city after weeks of unusual calm, rattling nerves in a region already on edge ...

Scientists uncover hidden faults beneath Northern California’s Mendocino triple junction. The discovery reshapes ...

Michigan occupies a quiet corner of the North American craton, a geologically stable area that has remained relatively calm ...

Three huge tectonic plates meet at the Mendocino triple junction off the coast of northern California, and a new study ...

A newly discovered fault complexity beneath America's most active earthquake zone raises the possibility that a major seismic ...

A 3.4-magnitude earthquake shook San Ramon Friday morning, according to the U.S. Geological Survey. The epicenter was just ...

An earthquake struck about three miles north of Dublin. Reports of damage were not immediately available.

THE FIRE NEXT TIME: A year after the Los Angeles fires laid bare failures in how California pays for wildfire damage, ...