PINOLE — A 3.4 magnitude earthquake hit near Pinole at 9:30 p.m. Sunday, according to the United States Geological Survey.

Beneath Earth s surface, nearly 3,000 kilometers down, lies a mysterious layer where seismic waves speed up inexplicably. For ...

City of Pinole hit by an earthquake at the same time as anti-immigration raids protests were taking place in downtown San ...

Tsunamis pose a risk to the entirety of the California coast. But should a major one strike, how bad could it be?

Near-shore tsunamis, those triggered by earthquakes just off the coast, could pose a particularly dire risk for California’s ...

A near-certain disaster looms for California, but there are real things people can do to prepare. Here's what to know about ...

A near-certain disaster looms for California, but there are real things people can do to prepare. Here's what to know about the risks.

In a state famous for its redwoods, beaches, and vineyards, Lake Shasta Caverns offers a glimpse into California’s hidden ...

While everyone’s flocking to California’s beaches and wineries, there’s an underground masterpiece in Redding that’s been ...

An updating map created by CBS News' data team charts the expanse of the wildfires across Southern California. The Hughes Fire, which erupted in northwest L.A. County on Wednesday, Jan. 22 ...

Wildfires are creeping into urban environments with alarming frequency, and they are connected to health problems ranging ...