The USGS reported a 5.7-magnitude quake struck 14.3 miles east-southeast of Ocotillo Wells at about 5:48 p.m. PT but later downgraded it to a magnitude 3.3.
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The temblor came after a 3.8-magnitude quake struck around 5:30 p.m. approximately 16.8 miles West of Westmorland and 17.4 miles south of Salton City.
Aftershocks of 3.5 and then 3.1 hit minutes later in the same area.
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There were no immediate reports of damage or injuries.
The quakes come just days after a magnitude 4.5 earthquake struck near Cabazon early Tuesday, and at least 27 aftershocks followed.
Caltech seismologists discuss 4.5-magnitude quake near Cabazon