USGS National-Strong Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
December 27, 2004, Anderson Springs, CA Earthquake (posted 12/30/2004)
Mw 4.3, 12/27/2004, 10:36 UTC, 12/27/2004, 02:36 AM PST, 38.747 N, 122.727 W, 2.9 km depth, Regional Network ID# nc40170103
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
ADSP Etna 3433 CA: Anderson Springs Calpine 38.7742 -122.7056 3.5 32 1 EpiSen 90 109.0 -1.96 6.24 1.040 0.0716
                  2 EpiSen 360 142.0 -4.87 10.60 1.320 0.1880
                  3 EpiSen UP -103.0 -2.68 6.60 0.867 0.0887
COB K2 3432 CA: Cobb Calpine 38.8387 -122.7528 10.4 348 1 EpiSen 90 22.3 0.53 3.99 0.311 0.0568
                  2 EpiSen 360 24.9 0.50 1.95 0.154 0.0317
                  3 EpiSen UP 8.9 0.34 1.41 0.120 0.0260