Earthquake - 5.4 Magnitude, Southern California At approximately 11:40 AM local Pacific Daylight Time, a 5.4 magnatude earthquake was felt throughout southern California. The quake was centered near Chino Hills, California, and was felt as far north as Bakersfield, south to San Diego, west to the coastline and east as far as Las Vegas. The epicenter event duration was approximately 30 seconds with a sharp jolt and then many seconds of rolling motion. There have been many aftershocks up to 3.6 magnatude since the quake took place. Authorities throughout southern California are mobilized and checks on water and gas mains as well as freeways and bridges are underway. There have been reports of several minor fires and some injuries. Please tune to your broadcast or cable news stations for additional southern California earthquake details.