USGS National-Strong Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
March 18, 2004, San Simeon, CA Aftershock (posted 03/18/2004)
ML 3.7, 03/18/2004, 10:26 UTC, 03/18/2004, 02:26 AM PST, 35.726 N, 121.078 W, 5.0 km depth, Regional Network ID# nc51139939
Sta Inst Inst State: City; Recorder Location Owner Lat Lon Dist Az Ch Sensor Orient PGA PGV PSA at:
Code type S/N     deg deg km deg No type deg cm/s/s cm/s 0.3 s 1.0 s 3.0 s
1083 Etna 1429 CA: San Luis Obispo; Rec Center USGS 35.285 -120.661 61.8 142 1 FBA-2g 360 0.6 0.02 0.12 0.006 0.0011
                  2 FBA-2g UP 0.2 0.01 0.07 0.005 0.0011
                  3 FBA-2g 90 0.5 0.02 0.11 0.007 0.0013