A magnitude-4.1 earthquake occurred Sunday about 7.7 miles northwest of Malibu, rattling nerves across Los Angeles County.
The quake struck at 1:03 p.m. at a depth of about 7.2 miles, according to the U.S. Geological Survey.
It was followed by a series of aftershocks in the same general area, estimated at magnitudes of 2.5, 3.0 and 2.8, the USGS reported.