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4.5 earthquake near Yorba Linda downgraded to a 4.1

August 8, 2012 | 10:06 am

This post has been updated and corrected. See note below.

The earthquake that hit near Yorba Linda at 9:33 a.m. has been downgraded from a 4.5 to a 4.1, according to the U.S. Geological Survey.

[Updated, 11:15 a.m. Aug. 8: USGS officials later in the morning again revised the earthquake magnitude back to 4.5.]

It is the first earthquake above a 4.0 since last night, when a 4.4 temblor struck the area at 11:23 p.m. A dozen additional aftershocks have hit the area since that initial quake.

There was no immediate word of injuries or damage, but the quake was felt over a wide area.

The USGS' "Did You Feel It?" feature included responses from across Southern California, from Santa Monica to Carlsbad.

At the Richard Nixon Library in Yorba Linda, marketing director Chris Nordyke said, "It shook us pretty good. We’ve felt earthquakes before, so it came as no surprise. It shook open the door but nothing fell off the shelves." He said an inspection of the facility is underway.

For the record, 10:56 a.m. Aug. 8: An earlier version of this post incorrectly identified Chris Nordyke as the archives director at the Richard Nixon Library.


After earthquakes, no impacts reported at Disneyland

Series of California earthquakes 'shook us pretty good'

Aftershocks rumble Southern California after 4.4 earthquake

-- Richard Winton