HUMBOLDT COUNTY, CA - A 4.7 magnitude quake was registered close to Petrolia Thursday morning, the U.S. Geological Survey ...

The biggest quake was a notable 4.2-magnitude shaker just after 7 a.m. amid an hour-long swarm that began with a ...

Visiting California? Learn how common earthquakes really are, what experts say about "the Big One," and how you can stay prepared during your trip.

A series of earthquakes rocked a Bay Area city on Feb. 2. Did you feel it? San Ramon was hit by a cluster of quakes starting ...

Did you feel them? A 4.2 earthquake struck near San Ramon Monday morning amid a string of over 30 temblors in the area, the U.S. Geological Survey said.

An ongoing string of more than a dozen earthquakes in less than 90 minutes early Monday ended what had been some recent calm ...

Five earthquakes have rattled California’s Bay Area, putting communities from Gilroy to San Jose on alert and renewing questions about what comes next. I will walk through what is known so far about ...

A cluster of earthquakes is rattling the San Francisco Bay Area centered within the city of San Ramon, including a magnitude ...

A series of small earthquakes rattled the San Francisco Bay Area in an area that’s had a lot of seismic activity in recent ...

As the Seattle Seahawks and New England Patriots gear up for Super Bowl 60 in Santa Clara, California, a 4.2 earthquake ...

The largest of the 19 earthquakes measured by the U.S. Geological Survey was a magnitude 4.2 shaker that was centered about ...

More than a dozen earthquakes struck near San Ramon on Monday morning, according to the United States Geological Survey.