Swarm of earthquakes near Salton Sea sends light shaking into Riverside County

A swarm of earthquakes, the largest of which had a 4.9 magnitude, hit south of the Salton Sea in Imperial County Wednesday afternoon, sending light shaking into Riverside County.  

(USGS)

In a two-and-a-half-hour span, 45 earthquakes of at least a 3.0 magnitude struck the Westmorland area, according to seismologist Lucy Jones, formerly of the U.S. Geological Survey.  

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The first quake, which had a 3.0 magnitude, struck at 4 p.m., and the 4.9 magnitude quake struck at 5:31 p.m., the U.S. Geological Survey reported.  

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"The swarm happening now south of the Salton Sea, near (Westmorland) is over 30 km south of the end of the San Andreas. It is in the Brawley seismic zone, a common source of swarms," Lucy Jones tweeted.  

Information about potential damage in Riverside County was not immediately available.

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