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LOS ANGELES (KTLA) – An earthquake with a preliminary magnitude of 4.2 rattled people awake in Southern California early Wednesday morning.

According to the U.S. Geological Survey, the quake struck at 2:00 a.m. and was centered offshore 16 kilometers south of Malibu Beach and west of Los Angeles, at a depth of 14 kilometers.

View interactive earthquake map

The quake was followed by a 3.5 magnitude aftershock at 2:03 a.m.

There were no immediate reports of damage or injuries.