Earthquakes (1981 to present) of magnitude 4.0 or larger are shown as black
stars. The 22 Feb. 2003 activity near Big Bear City shown as red
circles with focal mechanism, shown as the beach ball. The late
Quaternary faults are shown in purple while the 1992 Landers rupture is
shown in red.
02/22/2003 Big Bear Earthquake
CISN Earthquake Reports