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

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

This should have West Coasters shaking in their shoes.

The Cascadia subduction zone could pose a major threat to the West Coast if a high magnitude earthquake were to occur, ...

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

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 ...

The temblor was detected near Julian, California. There were no immediate reports of major damage or injuries.

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

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.

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