Two mild earthquakes hit Contra Costa County on Saturday, according to the U.S. Geological Survey. The first quake, with a magnitude of 2.2, occurred at 6:58 a.m. The second quake, with a magnitude of 2.5, occurred at 3:25 p.m. Both were centered about 5 miles west of Danville and 3 miles southwest of Alamo. Neither the Contra Costa sheriff’s department nor the Danville police received any reports of injuries. Saturday’s quakes followed three others that hit Contra Costa early Friday morning with magnitudes ranging from 1.7 to 3.5.

A series of small earthquakes has struck the Redlands area, about 60 miles east of Los Angeles. There have been no reports of injuries or damage. The U.S. Geological Survey says the largest of the temblors was a magnitude-3.2, which struck at 10:13 p.m. Sunday and was centered about 6 miles south-southwest of Redlands. It was followed within minutes by a pair of 2.7s. A magnitude-2.5 struck at 2:21 a.m. Monday. A dispatcher for the Redlands police says they received calls from residents who felt the small quakes.

When powerful earthquakes strike anywhere in the world, their seismic waves go rippling through the ground and trigger smaller quakes thousands of miles away where no one had ever expected them, scientists have discovered. Geophysicists reported Sunday that they have (more…)