The U.S. Geological Survey says the magnitude-3.8 quake struck at 3:18 a.m. Wednesday. The epicenter was 2 miles east-southeast of Marina del Rey near Culver City and Inglewood.
A Sheriff's Department dispatcher says it "wasn't much of a quake" and that he hasn't had any calls from the public about it.
Within half an hour of the quake hitting, dozens of people from as far away as Riverside and the San Fernando Valley reported feeling the shaking on the USGS website.
Fire Department spokesman Matt Spence says firefighters rolled out of stations throughout the city and surveyed 470 square miles. No damage was found, and no injuries have been reported.