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Series of earthquakes near Salton Sea felt in San Diego County

Posted at 5:05 PM, Sep 30, 2020
and last updated 2020-09-30 23:02:47-04

SAN DIEGO (KGTV) — A 4.9-magnitude earthquake and several smaller shakeups recorded in Imperial County on Wednesday were reportedly felt in San Diego County.

The swarm of earthquakes was centered around the Westmorland area. While many of the smaller quakes were recorded between 2.5- and 3.7-magnitude, about 80 earthquakes measuring at least 2.5-magnitude were recorded between 4 p.m. and 7:15 p.m.

The largest earthquake as of 5:45 p.m. registered at 4.9-magnitude, according to the agency's latest earthquakes map.

Seismologist Dr. Lucy Jones tweeted that Wednesday's series of earthquakes was one of the largest swarms Imperial Valley has seen, adding that the area is historically active in swarms.

"The swarm happening now south of the Salton Sea, near Westmoreland is over 30 km south of the end of the San Andreas," Jones tweeted. "It is in the Brawley seismic zone, a common source of swarms. So far largest is M4.4. Too far from the San Andreas to change the probability of a quake on it."

The USGS' "Did You Feel It?" form was filled with responses from San Diego County cities, including Chula Vista, El Cajon, La Jolla, and Vista.

There have not been any immediate reports of injuries or damages.