The swarm of mostly minor quakes began shortly after 1:30 a.m. Monday morning, ranging in strength from 2.6 to the largest one, according to the U.S. Geological Survey.
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The most powerful temblor was measured at a magnitude 4.6, which struck at a depth of about six miles, located some 63 miles northwest of Palm Springs just before 2 a.m.
Such a cluster of relatively small quakes in that area isn't the first such occurrence, according to seismologist Dr. Lucy Jones, who said it's the fourth such swarm since 2001.
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The 4.6 quake was reportedly felt in the surrounding populated cities, including Thermal and Indio, but no there were no reports of injuries or damage.