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4.4 Earthquake Strikes of Pico Rivera [Updated]

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Did this one wake you out of bed? If Twitter is any indicator, yes, it woke up hundreds of thousands of Angelenos this morning. A 4.4 earthquake struck Pico Rivera, about 11 miles from downtown L.A., at 4:04 a.m., according to the United States Geological Survey Earthquake Hazards Program. This size quake is categorized as "light." There have been no immediate reports of injuries or damage.

Update: "Currently Los Angles Fire Department has all resources on radio watch and checking their districts," said Erik Scott, a LAFD Spokesman. "We're canvassing Los Angeles to assist any in need right now." He said there have been no 911 calls of an urgent matter.

Update: Here's a Google Map of the quake location.

Update: Deputy Soll of the Los Angeles County Sheriff Station in Pico Rivera said there nothing out of the ordinary to report. "Just people calling wondering what happened," he said.

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Update: Some are saying this quake may be on the Puente Hills fault, which is known for the 5.9 magnitude 1987 Whittier Narrows Earthquake that left eight dead. The nearby 5.4 Chino Hills quake of 2008 was originally thought to be caused by the Whittier fault but was later corrected to be the Yorba Linda fault.

Update: Jason Rosenthal at the Southern California Newswire says the quake was caused by the Whittier Fault, via the USGS. "The Whittier Fault is associated with the Elsinore Fault Zone, which last week produced two earthquakes around the same size south of Julian in San Diego County," he noted. "Whether this morning's earthquake in Pico Rivera is somehow related to those earthquakes is unknown."