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

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

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

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

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

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

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

A 4.4-magnitude earthquake struck Mendocino County, 120 miles north of San Francisco, and was felt across the Bay Area, ...

The United States Geological Survey captured the earthquake at about 7:00 a.m. about 20 miles from San Jose, according to ...

A 4.4 magnitude earthquake struck without warning on a Tuesday afternoon, its epicenter 120 miles north of San Francisco in ...

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

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