A 3.1-magnitude earthquake shook the San Francisco Bay Area in California, the U.S. Geological Survey reported. The nearly 9-mile-deep quake hit about 20 miles from Portola Valley at 9:28 p.m. Wednesday, July 30, according to the USGS.

A preliminary magnitude-4.3 earthquake in the San Bernardino area produced shaking that was felt over widespread parts of Southern California. The quake, reported at about 9:30 a.m., was one of four of magnitude 2.

A 4.3-magnitude earthquake centered just west of Muscoy, and north of San Bernardino, rattled Southern California at 9:32 a.m. on Thursday, July 31, according to the United States Geological Survey. In some areas,