City News Service
A pair of aftershocks struck the Imperial Valley and eastern San Diego County today, according to automated seismographs and computers operated by the U.S. Geological Survey.
The largest aftershock was centered on the U.S.-Mexican border, about 20 miles southeast of Ocotillo, or about 120 miles east of San Diego. It hit at 1:58 a.m., and was reportedly felt by persons in Tecate and Lakeside.
A magnitude 3.1 aftershock struck the same Imperial Valley epicenter at 3:42 a.m.
Thousands of similarly-sized aftershocks have rattled the area since a magnitude 7.2 earthquake struck on April 2 of last year, killing two people in Mexicali and severely damaging canals, schools and older buildings in Imperial County.