Smoke from a wildfire in San Luis Obispo and Santa Barbara counties is affecting air quality to start the week in Los Angeles ...

Los Angeles, Orange, Ventura and Santa Barbara counties, along with the entire West Coast were under a tsunami alert issued ...

The Rialto Fire Department reported that a series of small earthquakes shook the northwestern portion of the city Thursday ...

An NOAA map (below) shows the red zone stretch about 130 miles from its southernmost point at Cape Mendocino near Fortuna, ...

Gifford fire in Southern California spreads to over 30,500 acres, prompting evacuations in San Luis Obispo and Santa Barbara ...

Millions of Southern California residents are breathing unhealthy air due to a large wildfire in the Central Coast area. As ...

Nearly 2,000 firefighters are fighting a battle against the Gifford wildfire in central California that has already burned more than 72,000 acres.

Multiple earthquakes rattled parts of San Bernardino and Riverside counties Thursday morning, according to the U.S.

A tsunami advisory was downgraded to a watch for Southern California coastlines after little activity was seen overnight, but ...

The nuclear power plant has reduced output from one of its units due its transmission lines’ proximity to the fire.

A tsunami warning was issued for California's North Coast, after a massive earthquake off the coast of eastern Russia.

Test your knowledge of US counties with this quiz! Learn about their purpose, the states with the most or fewest unique ...