A magnitude 4.2 earthquake shook Southern California early Wednesday, officials said.
According to the U.S. Geological Survey and the Los Angeles Fire Department, the earthquake occurred at 2 a.m. PT. The quake's center was about 10 miles south of Malibu Beach, USGS ShakeAlert reported.
The 4.2 magnitude earthquake was "too small to trigger the delivery of #ShakeAlert-powered alerts to cell phones," USGS ShakeAlert wrote on Twitter.
"We know some of you felt shaking and we hope you took a protective action like Drop, Cover, and Hold On," USGS ShakeAlert added.
The earthquake was followed by several aftershocks of magnitude 3.5, 2.8 and 2.6.
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