California is riddled with a number of fault lines that frequently cause earthquakes, including Arrowhead, Waterman Canyon, ...

A third earthquake struck California in less than six hours, this one rocking the city of Hayward near San Francisco and San ...

Area 51 was rocked by an earthquake, sparking speculations of what might be happening underground at the top-secret facility.

With construction near homes, schools and businesses, a growing call for more limits on key renewable technology ...

The recent earthquake near Area 51 has reignited speculation about the base, linked to UFO activity and secret military testing.

Researchers at Stanford University developed a new method to measure water levels in the state’s aquifers using readily available seismic data.

The epicenter for all the quakes was about one mile east of Hayward, in San Francisco’s East Bay, according to the U.S.

A series of small earthquakes shook the San Francisco Bay Area on Thursday, according to the United States Geological Survey.

Five minor earthquakes shook California on Thursday, including two rumbles just minutes apart in the San Francisco Bay area, ...

A series of small earthquakes hit near a Bay Area city on Thursday, with the most recent being a magnitude 3.7, according to ...

The strongest was a 3.4 magnitude quake that struck near San Bernardino, with more than 500 people feeling the quake.