USGS National-Strong Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
October 03, 2003, The Geysers, CA Earthquake (posted 10/03/2003)
ML 3.9, 10/03/2003, 16:56 UTC, 10/03/2003, 09:56 AM PDT, 38.839 N, 122.810 W, 3.6 km depth
Sta	Inst	Inst	State: City; Recorder Location	Owner	Lat	Lon	Dist	Az	Ch	Sensor	Orient	PGA	PGV	PSA at:
ID	type	S/N			deg	deg	km	deg	No	type	deg	cm/s/s	cm/s	0.3 s	1.0 s	3.0 s
COB	Etna	3432	CA: Cobb	Calpine	38.8391	-122.7531	4.9	90	1	EpiSen	90	54.4	1.2	7.19	0.950	0.0627
									2	EpiSen	360	58.8	-2.3	10.40	1.030	0.0648
									3	EpiSen	UP	-32.4	0.6	1.76	0.297	0.0508
ADSP	Etna	3433	CA: Anderson Springs	Calpine	38.7742	-122.7044	11.7	128	1	EpiSen	90	-23.2	0.4	1.11	0.160	0.0118
									2	EpiSen	360	-23.2	0.6	2.62	0.178	0.0258
									3	EpiSen	UP	-11.0	-0.2	1.07	0.101	0.0160