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Magnitude 5.1 quake sends shiver down Los Angeles spine
From Buzzfeed
LOS ANGELES — A shallow magnitude-5.1 earthquake struck the Los Angeles area Friday night, causing minor damage and injuries, scattered power outages, and gas leaks.
The earthquake occurred at 9:09 p.m. at a depth of 4.6 miles and was centered near Brea in Orange County — about 20 miles southeast of downtown Los Angeles. It was immediately followed by dozens of aftershocks, including a 3.4 and 3.6 magnitude.
The earthquake was widely felt from northern San Diego County to Ventura County, and residents said shaking was felt for about 10 seconds. The larger quake followed a 3.6 magnitude foreshock that occurred in the same area an hour earlier.
USGS officials said at a press conference late Friday there is a 5% chance of a larger earthquake occurring in the area within the next three days. The agency said it received a 4-second warning of the incoming quake from an early warning system it is still testing.
Early indications are that the earthquake is “related to the Puente Hills thrust fault, which caused the Whittier Narrows earthquake back in 1987,” Caltech seismologist Egill Hauksson said. “That may change over time as we look at the data.”
According to The Los Angeles Times, scientists are particularly concerned about the Puente Hills thrust fault because it runs directly underneath downtown Los Angeles.
Seismologist Sue Hough told the paper in 2003, “This is the fault that could eat L.A.”
Source: http://tallbloke.wordpress.com/2014/03/29/magnitude-5-1-quake-sends-shiver-down-los-angeles-spine/
