It's been a shaky day. The Death Valley area had a nice 3.6 earthquake earlier this morning, but the U.S.-Mexico border takes the cake. A 5.8 earthquake struck at 10:48 a.m. on the Mexico side some 20 miles from Mexicali in Baja Mexico and Calexico in California. It's been followed by various aftershocks: a 4.9 at 10:53 a.m., a 4.0 at 11 a.m., a 3.4 at 11:04 a.m., a 3.0 at 11:12 a.m. and a 2.7 microquake at 11:17 a.m. We've seen no reports of damage or casualties yet, but "buildings briefly swayed in San Diego"--about 100 miles away.
Source: Desert Sun