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2003 Big Bear Earthquake: Map of M4.0 and larger earthquakes

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

California Integrated Seismic Network

CGS USGS OES Caltech UC Berkeley