A long-feared monster earthquake off the coast of California, Oregon and Washington could cause some areas to sink by more ...

A new study warns that a megathrust earthquake along the Cascadia Subduction Zone could cause coastal land to sink permanently.

The Cascadia Subduction Zone, a major fault that runs offshore from Northern California to British Columbia, is best known ...

Monday's 5.2 magnitude temblor marked another success for California's early earthquake warning system, with users in some ...

A 2.7-magnitude earthquake felt by scores of people shook the northern San Francisco Bay Area in California early Tuesday, April 29, the U.S. Geological Survey reported. The nearly 6-mile deep quake ...

When an earthquake rips along the Cascadia Subduction Zone fault, much of the U.S. West Coast could shake violently for five ...

At about 11:46 p.m. Sunday, a magnitude 3.2 earthquake struck about 9 miles west-southwest of Johannesburg, according to the ...

A magnitude 5.2 earthquake jolted southern California Monday morning near San Diego felt as far away as Mexico, according to the U.S. Geological Survey.

The temblor was centered about 2.5 miles south of Julian, according to initial reports from the U.S. Geological Survey.

A 5.2 magnitude earthquake shook Southern California on Monday, according to the U.S. Geological Survey. The quake was ...

Leveraging reporter Julie Watson’s long-standing relationship with the San Diego Zoo, an AP all-formats team produced a ...

The next great earthquake isn't the only threat to the Pacific Northwest. A powerful earthquake, combined with rising sea ...