CONTRA COSTA COUNTY, CA - A preliminary 2.8 magnitude quake shook close to San Ramon on Monday morning, according to the U.S.
A nearly 5.0 magnitude earthquake was reported near Indio, California, and was felt in San Diego, Orange County and Temecula.
A 3.3 magnitude earthquake struck off the coast of Orange County, California, causing weak to light shaking to be felt as far north as Fullerton and Anaheim, and as far south as Mira Mesa and Scripps ...