The U.S. Geological Survey (USGS) reported that the magnitude 4.9 earthquake struck about 12 miles northeast of Indio, CA in ...

Scientists are uncovering a hidden and surprisingly complex earthquake zone beneath Northern California by tracking swarms of ...

By tracking swarms of very small earthquakes, seismologists are getting a new picture of the complex region where the San ...

Seismic tremors reveal a shallow fragment of ancient tectonic plate beneath Northern California, helping explain damaging ...

A magnitude 4.4 earthquake hit a lightly populated area east-southeast of Willits on Tuesday afternoon, with no immediate ...

Tiny, nearly undetectable earthquakes beneath Northern California are offering scientists new insights into the complex ...

Invisible earthquakes are revealing a hidden tectonic puzzle beneath California’s most dangerous fault zone.

San Ramon has been hit by scores of tremors since mid-November.

Seismologists have discovered hidden faults at the Mendocino Triple Junction by tracking tiny earthquakes using a new ...

Tremors beneath Northern California show hidden plate movement, helping scientists better understand where future big ...

Dozens of earthquakes have been detected in a region just north of the Bay Area, sparking fears that a major earthquake ...

On a quiet night in Susanville, California, a magnitude 4.9 earthquake struck about 9 miles from the small mountain town of ...