Several earthquakes have been reported in Petrolia in recent weeks, most notably a 7.0-magnitude earthquake on December 5, ...

A 7.0 magnitude earthquake was reported in northern California on Thursday, according to the United States Geological Survey.

Residents in Humboldt County were relieved Friday to have avoided the worst potential impacts of Thursday's magnitude 7.0 ...

A 6.6 EARTHQUAKE HAS JUST BEEN REPORTED. THIS IS NEAR THE AREA OF PETROLIA. AS YOU CAN SEE ON THE MAP RIGHT ALONG THE COAST.

Northern California residents could feel aftershocks as high as magnitude 6.0 for months following Thursday morning's ...

A preliminary 3.6 magnitude earthquake struck Wednesday morning off the Northern California coast, according to the United ...

The agency estimated than more than 1.3 million people lived close enough to the quake to feel its impact. There were no ...

A magnitude 2.8 earthquake jolted the Los Angeles area Monday morning, sending weak shaking from its epicenter in Alhambra.

The 7.0 earthquake earlier this month led to a tsunami warning that was quickly canceled by forecasters but officials have ...

California's free earthquake early warning app, MyShake, is now available for Mac computers and Chromebooks — a major ...

California officials and UC Berkeley Seismology Lab announce first-in-the-nation laptop, tablet downloads for the earthquake ...

A large, 7.0-magnitude earthquake struck off the coast of Humboldt County in Northern California on Thursday morning, ...