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PORT HUENEME, Calif. — A magnitude 4.0 earthquake lightly shook the Los Angeles area early Thursday, striking in the ocean off coastal Southern California.

The quake began at 2:13 a.m. PT, centered in the Pacific Ocean about 15 miles south of Port Hueneme, a city roughly 60 miles west of downtown Los Angeles, the US Geological Survey says.

The quake produced light to weak shaking, the USGS says.

It felt like a quick jolt in Los Angeles-area communities such as West Hollywood, Marina del Rey and South Gate, people told CNN affiliate KABC.

No damage or injuries were immediately reported.

(Photo courtesy of CNN)