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

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 ...

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

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

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

The earthquake was centered near at a depth of 4.5 kilometers (about 2.8 miles). The USGS said it received zero reports of ...

Monday’s magnitude 5.2 temblor marked another success for California’s earthquake early warning system, with users in some areas saying they received alerts on their phones before they felt ...

A magnitude 5.2 earthquake near Julian rattled much of Southern California and Tijuana just after 10 a.m. Monday, prompting ...

Southern California typically experiences more than 10,000 earthquakes per year, according to the United States Geological ...

A 5.2 magnitude earthquake struck near San Diego on Monday morning, with the epicenter located in Julian, California, 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.