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

California has recently experienced a series of earthquakes in a short span of time, raising concerns about the state's seismic activity. In less than 12 hours, residents and seismologists alike have ...

A 3.1-magnitude earthquake struck near Rio Vista in Northern California, the U.S. Geological Survey reported. Getty Images/iStockphoto A 3.1-magnitude earthquake shook Friday, April 4, in Northern ...

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

"In Northern California, usually the (earthquake ... Earth's crust would typically be too hot and high pressure for seismic activity. "In Northern California, usually the (earthquake) data ...

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

California has experienced four earthquakes in less than 12 hours. The seismic activity began around 9pm ... 4:30am near Petrolia in the northern region of the state. An assessment from Michigan ...

A magnitude-5.2 earthquake occurred about 2.5 miles south Julian, California at 10:08 a.m. April 14, according to the U.S. Geological Survey.

Below California's famed beaches, mountains and metropolitan areas lies a sinister web of earthquake faults—some so infamous that their names are burned into the state's collective consciousness.

In California, Aspen has completed a 3-D seismic program ... five to seven gas tests in the Sacramento Valley gas province of northern California, including the counties of Colusa, Glenn, Tehama ...

A magnitude 5.2 earthquake struck near Julian, a historic town in Southern California, on. Centered just south of the town, ...