The U.S. Geological Survey says a – 4.5 quake struck at 11:23 p.m. Tuesday and 4.5 & 3.4 between 9:30 am and 10am on Wednesday. It was centered two miles north of Yorba Linda in northern Orange County. There was a magnitude – 2.7 aftershock shorthly therafter. The quake was felt throughout the Los Angeles area. No damage or injuries were reported. The quake originated about 6.5 miles underground, according to the USGS.