Trump sent National Guard troops to California amid days of protesting federal immigration raids. Here's what's usual, and unusual, about the order.

Thousands of Californians felt the ground shake underneath them as many were protesting ICE raids in San Francisco.

The core portion of NASA's Nancy Grace Roman Space Telescope has successfully completed vibration testing, ensuring it will ...

A 3.3-magnitude earthquake shook the San Francisco area in California, the U.S. Geological Survey reported. The 6-mile deep ...

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

A 3.3 magnitude earthquake hit near Pinole at 9:30 p.m. Sunday, according to the United States Geological Survey. Related ...

The California Earthquake Authority (CEA) has now priced its latest catastrophe bond, securing the 60% top-end target size ...

Keeping the nation’s lights on is no small job. The grid we take for granted involves large, expensive equipment, most ...

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

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

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

Unlike other earthquake-prone places around the planet, California is overdue for a major quake, according to a recent study.