July 25 (UPI) -- A 4.3-magnitude earthquake in Baja California on Monday shook residents in Southern California and Mexico, an area that frequently sees seismic activity.
Hundreds of people felt the quake early Monday morning, according to the U.S. Geological Survey. The agency said the quake's epicenter was 4.3 miles west of El Sauzal in Baja California at depth of 10 miles.