A series of earthquakes measuring over four in magnitude rattled Southern California’s Imperial Valley early Sunday morning , sending shockwaves that could be felt for many miles. A 4.5 magnitude quake struck at 12:09 a.m and was centered approximately 4 miles west-southwest of Niland and just east of the Salton Sea, according to the U.S. Geological Survey. It had a depth of just over 4 miles and was followed by several other quakes of roughly the same magnitude.