The USGS reported that, over the past several days, a sequence of at least five earthquakes shook California, with magnitudes ...

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

A preliminary 4.4 magnitude earthquake shook in Northern California Tuesday afternoon, according to the United States ...

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

A 4.2-magnitude earthquake has struck near Cloverdale in central California, shaking nearby Santa Rosa, too, the U.S.

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

For more than a month, the Bay Area has been subjected to a seemingly ceaseless stampede of earthquakes — the latest in a series of seismic swarms that have rattled windows and raised fears across ...

A hidden chunk of an ancient tectonic plate is stuck to the Pacific Ocean floor and sliding under North America, complicating ...

For more than a month, the San Francisco Bay Area has been subjected to a seemingly ceaseless stampede of earthquakes — the latest in a series of seismic swarms that have rattled windows and raised ...