A 4.2 earthquake shook off the Northern California coast early Tuesday morning, according to the United States Geological ...

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

USGS initially estimated more than 150,000 people might have been exposed to earthquake shaking, between just north of Fort ...

A magnitude 7.0 earthquake struck California near the town of Petrolia, about 265 miles north of San Francisco, Thursday ...

According to the US Geological Survey, the quake struck around 10:44 a.m., west of Petrolia, California in the Pacific Ocean.

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

A large earthquake struck off the coast of Humboldt County on Thursday morning, prompting a tsunami warning for part of the ...