Long Beach Shakes from Earthquake 4.7 in Los Angeles

share this:

long-beach-earthquakeWe felt it Long Beach. (Although nothing like the famous 1933 earthquake in our photo!) A moderate earthquake occurred at 8:39:36 PM (PDT) on Sunday, May 17, 2009.

The magnitude 5.0 4.7 trembler occurred 1 mile East of Lennox, CA and about 8 miles beneath the ground.

After the initial event rolled through Long Beach, there have already been five follow-up quakes. The largest aftershocks measured 3.1.

So far, no reports of damage in Long Beach. A few reports of damage in Long Beach — some broken windows in North Long Beach are already being repaired, along with residents reporting books jumping off shelves and broken items (thanks, Facebook!).

From the U.S. Geological Survey…

A magnitude 4.7 earthquake struck about 3 miles east of Los Angeles International airport at 8:39 p.m. (PDT) local time, at a depth of 8.5 miles. Given that the location is in a densely populated part of the Los Angeles basin, it was widely felt. Initial estimates from the USGS ShakeMap indicate that although strong shaking will have been felt by many people, damage is expected to be light.

The initial focal mechanism is consistent with slip on the Newport-Inglewood fault, which was the source of the damaging 1933 Long Beach earthquake. Two of the early aftershocks, however, are west of the Newport-Inglewood fault trend. Later aftershocks will help to define the fault plane that ruptured. The Los Angeles basin is crossed from northwest to southeast by the Newport-Inglewood fault, which was formerly thought to be capable of very large earthquakes. More recent research has shown that, instead, it is of less concern and only capable of up to about M 7.4.

For more earthquake stats visit the U.S. Geological Survey page about the main earthquake. You can also click for recent Los Angeles earthquake info and see listing for foreshocks, aftershock and such.

Want to watch developments in real-time as Long Beach residents talk about the earthquake? Search #earthquake on Twitter.

Comments are closed.