This USGS map shows the location of a 4.1 magnitude Baja California quake on April 9, 2011. Its epicenter is marked by a blue square.
A 4.1 magnitude earthquake provided an early Saturday morning wake-up call to some Southern California residents, shaking at its epicenter Baja California, Mexico.
Based on its timing, this 5:03 a.m. tremor may have rattled some nerves.
Nearly a year ago last Easter, the same region was struck with a magnitude 7.2 earthquake. Two people were killed and thousands of homes in Baja were damaged.
On Thursday, a 6.5 magnitude earthquake shook Veracruz, Mexico, causing buildings to sway and people to run from their homes.
Saturday’s quake was located 13 miles south of Seeley, Calif., and 76 miles east of Tijuana, Mexico. No serious damage has been reported
The U.S. Geological survey said the quake hit at a depth of 10 kilometers.