California's earthquake early warning system passes major test
A magnitude 5.2 earthquake struck Monday morning in the Riverside County desert, the U.S. Geological Survey reported. It was the second earthquake in the Anza area Monday. [Updated at 10:59 a.m., March 11: The quake has been downgraded to 4.7
It gave Southern California a small morning jolt but caused no damage and was largely shrugged off by noon. But in one important way, the quake was highly significant because it marked an advance in California's burgeoning earthquake early warning
LOS ANGELES – An earthquake with a preliminary magnitude of 5.1 has shaken a wide area of Southern California. The U.S. Geological Survey's automated monitoring system places the epicenter in the desert near Anza, about 100 miles southeast of Los
A 4.7 earthquake felt widely around Southern California this morning was another good reminder to all residents that they live in earthquake country and should be prepared for a major one in the future.
An earthquake with a preliminary magnitude of 5.1 shook a wide area of Southern California on Monday, according to the U.S. Geological Survey. The quake was centered 16 miles south of Palm Desert, Calif., in the high