4.4 earthquake near L.A. could be 'foreshock' for bigger shake
The magnitude 4.4 earthquake that struck near Westwood is the most significant shake in Southern California since a 5.5 earthquake hit Chino Hills in 2008, a U.S. Geological Survey seismologist told reporters at a news conference Monday morning.
Robert Graves said there have been at least six aftershocks since the 6:25 a.m. earthquake. The largest so far has been a magnitude 2.7 earthquake that struck five miles northwest of Westwood.
Graves said there is always the small possibility that the 4.4 earthquake was only a prelude to an equal or stronger shake.
http://www.latimes.com/local/lanow/la-me-ln-earthquake-foreshock-20140317,0,2194994.story#ixzz2wF7cli00