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Public Safety

Magnitude 4.1 Earthquake Shakes Imperial County

Jessica Lovecchio measures dust emissions near the Salton Sea, April 9, 2015.
Nicholas McVicker
Jessica Lovecchio measures dust emissions near the Salton Sea, April 9, 2015.

A series of six earthquakes ranging in magnitude from 2.8 to 4.1 rattled the Imperial County city of Calipatria Wednesday night.

All the earthquakes occurred near the southern edge of the Salton Sea. The strongest, a magnitude-4.1, occurred at 8:15 p.m., about 10 miles northwest of Westmorland.

The first earthquake was reported at 8:18 p.m., and the last at 10:06 p.m., according to the United States Geological Survey.

The epicenter for five of the six earthquakes was about eight miles north-northwest of Calipatria.

The magnitude-4.1 occurred at a depth of five-eighths of a mile.

Two of the earthquakes had a magnitude of 3.3. The first, at 8:51 p.m., occurred at a depth of 1.8 miles, and the second, at 10:06 p.m., was at ground level, according to the USGS.