USGS National-Strong Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
December 01, 2007, The Geysers, California Earthquake (posted 12/06/2007)
Mw 4.0, 12/01/2007, 20:50 UTC, 12/01/2007, 12:50 PM PST, 38.815 N, 122.792 W, 2.4 km depth, Regional Network ID# nc40206647
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
COB	K2	3432	CA: Cobb	Calpine	38.8387	-122.7528	4.3	52	1	EpiSen	90	-93.8	-3.45	22.8	1.33	0.1330
									2	EpiSen	360	-94.9	3.64	23.3	1.00	0.1090
									3	EpiSen	UP	22.3	0.74	1.7	0.28	0.0171
ADSP	Etna	3433	CA: Anderson Springs	Calpine	38.7742	-122.7056	8.8	121	1	EpiSen	90	-26.1	0.55	2.1	0.13	0.0136
									2	EpiSen	360	32.8	0.62	3.9	0.14	0.0221
									3	EpiSen	UP	-24.2	0.43	0.9	0.09	0.0098