San Simeon Earthquake

Central California

A strong earthquake of magnitude Mw=6.5 occurred on the Central Coast of California at 19:15:56 UTC on Monday, December 22, 2003. The epicenter was 11 km NE of San Simeon, at a depth of about 8 km. Two people were killed and about 40 buildings were collapsed. Severely damaged at Paso Robles which is located about 39 km from the epicenter. At least 40 people were reported to be injured in the Paso Robles-Templeton area.

Date	Time	Latitude	Longitude	Depth	Ms	Mw	Source
22-12-2003	19:15:56	35.706 N	121.102 W	8	-	6.5	USGS

Source Parameters

Seismic Moment	Phi_1	Dip_1	Slip_1	Phi_2	Dip_2	Slip_2	Source
4.2 x 10²⁵	115	40	89	297	50	91	USGS

Source Parameters Determination using teleseismic recordings

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More Information

USGS

ATHU = Athens University
NOA = National Observatory of Athens
USGS = United States Geological Survey
NEIC = National Earthquake Information Center
HRV = Harvard University

Ml= Local Magnitude
Mw= Moment Magnitude
Mo= Seismic Moment (dyncm)