A series of earthquakes struck the Imperial and Coachella valleys today.
Preliminary USGS reports indicated a magnitude 3.9 quake hit near the southern end of the Salton Sea at 10:02 a.m., and was followed by a 3.4 quake about 90 seconds later. magnitude 2.2 and 2.0 quakes followed within six minutes of the first shock.
The apparent quake cluster was centered 3 miles north-northwest of Brawley, about 16 miles north of El Centro and 45 miles southeast of Indio.
In the one hour after the first earthquakes, an additional 11 quakes struck the same approximate epicenter near the Salton Sea.
Three other small quakes were also recorded at other epicenters within 5 miles of Brawley.