A magnitude-3.9 earthquake struck between San Pedro and Catalina Island on Tuesday afternoon, according to U.S. Geological Survey.
The temblor struck at 3:26 p.m. about 12 miles south of San Pedro in the San Pedro Channel, the USGS said.
The epicenter was 16 miles from Long Beach and 14 miles from Rancho Palos Verdes (map). The quake was at a depth of 2 miles.
The USGS ShakeMap showed those on Catalina, in Long Beach and parts of the South Bay and Orange County felt light-to-moderate shaking.
Several KTLA viewers contacted the station to say they felt the temblor.
"Felt much stronger than a 3.9," said viewer Chris DuRee, who was near downtown Long Beach. "Rattled softly and then a few strong rolls. No damage anywhere."
Elsewhere in the Los Angeles Basin and in the Santa Monica Mountains, the shaking was perceived as "weak," according to the ShakeMap.
No tsunami was expected, according to the National Weather Service's National Tsunami Warning Center.