USGS National-Strong Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
March 11, 2003, Twentynine Palms Base, California Earthquake (posted 03/13/2003)
ML 4.6, 03/11/2003, 19:28 UTC, 03/11/2003, 11:28 AM PST , 34.359 N, 116.133 W, 3.8 km depth
Sta Inst Inst State: City; Recorder Location Owner Lat Lon Dist Az Ch Sensor Orient PGA PGV PSA at:
No type S/N     deg deg km deg No type deg cm/s/s cm/s 0.3 s 1.0 s 3.0 s
5435 Etna 1433 CA: Sky Valley; Fire Sta #56 USGS 33.9168 -116.3898 54.5 206 1 FBA-2g 360 -7.3 0.3 1.62 0.075 0.0078
                  2 FBA-2g UP 3.6 0.1 0.76 0.042 0.0030
                  3 FBA-2g 90 -5.7 0.2 1.64 0.073 0.0064
5295 K2 534 CA: N Palm Springs; FS #36 USGS 33.925 -116.548 61.5 219 1 FBA-2g 180 6.7 0.3 1.19 0.115 0.0091
                  2 FBA-2g UP -1.5 0.1 0.56 0.064 0.0036
                  3 FBA-2g 270 -5.3 -0.2 0.87 0.162 0.0082
5294 K2 532 CA: Indio; Jackson Road USGS 33.747 -116.215 68.3 186 1 FBA-2g 180 -5.6 -0.3 1.40 0.266 0.0138
                  2 FBA-2g UP 2.2 0.1 0.29 0.075 0.0039
                  3 FBA-2g 270 5.3 0.3 1.90 0.137 0.0086