HUMBOLDT COUNTY, CA - A preliminary 3.9 magnitude quake occurred close to Petrolia at midday on Friday, the U.S. Geological ...

A preliminary 2.2 magnitude quake struck close to Petrolia on Friday night, according to the U.S. Geological Survey.

California officials are urging residents to prepare for earthquakes during Earthquake Preparedness Month by signing up for ...

Emergency officials say it’s critical that community members act now to prepare for an earthquake given the chances of a ...

Residents in western Nevada and parts of California were rattled by a magnitude 5.5 earthquake on Monday evening. The U.S.

The "Big One" is an oft-used nickname for the big San Andreas earthquake that is predicted to hit California sometime in the near future. But while this earthquake will certainly be hugely destructive ...

Preparedness saves lives. That's the message California is sending to residents. April marks Earthquake Preparedness Month.

BOULDER CREEK, Calif. (AP) — An earthquake of magnitude 4.6 in Northern California awakened residents with a jolt early Thursday, with many saying they felt their homes shake for a few seconds in a ...

A magnitude 4.6 earthquake centered in Santa Cruz County rattled Northern California early Thursday morning, waking people up as far away as San Francisco.

A series of earthquakes, peaking at magnitude 4.8, struck western Nevada on Wednesday, with tremors felt in parts of ...

A 4.6 magnitude earthquake shook Northern California early Thursday morning, ​according to the United States Geological ...

A minor, 3.5-magnitude earthquake struck in Southern California on Wednesday, according to the United States Geological ...