Early-morning quake in Baja California felt in San Diego

SAN DIEGO - A small earthquake centered in the lightly-populated Baja California interior could be felt across the border in Southern

California today.

The quake, reported just before 7 a.m. about 45 miles east of Ensenada and 55 miles southwest of Mexicali, had a preliminary magnitude of 4.0.

The US Geological Survey's ``Did you feel it?'' website showed people felt light shaking in Ensenada as well as Tijuana, parts of San Diego County and the Imperial Valley.