LOS ANGELES—A magnitude-4.2 earthquake struck near Malibu early Jan. 25 morning, giving thousands of residents a rude awakening and prompting Los Angeles emergency management officials to conduct a 470-square-mile survey of the city that turned up no signs of damage or injuries.
The quake struck at 2 a.m., followed by a magnitude-3.6 aftershock at 2:03 a.m., according to the U.S. Geological Survey. Two more aftershocks were reported. The first was 2.9 magnitude at 2:22 a.m. and the second was 2.8 magnitude at 2:38 a.m.
The quakes were centered offshore, about 10 miles south of Malibu and 15 miles southwest of Santa Monica, according to the agency….