USGS National-Strong Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
February 13, 2012, The Geysers, California Earthquake (posted 02/13/2012)
Mw 4.3, 02/13/2012, 04:47 UTC, 02/12/2012, 08:47 PM PST, 38.790 N, 122.745 W, 0.0 km depth, Regional Network ID# nc71729135
Sta	Inst	Inst	State: City; Recorder Location	Owner	Lat	Lon	Dist	Az	Ch	Sensor	Orient	PGA	PGV	PSA 5% damping %g
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	3.8	117	1	EpiSen	90	-114.0	-1.85	6.27	0.503	0.1210
									2	EpiSen	360	132.0	-2.06	6.48	0.389	0.0754
									3	EpiSen	UP	116.0	-1.62	3.56	0.436	0.0446
ADS2	Etna	6643	CA:Anderson Springs;Town Pool	Altarock	38.7745	-122.6997	4.3	114	1	EpiSen	90	-73.2	-0.95	1.57	0.271	0.0996
									2	EpiSen	360	-101.0	1.14	1.94	0.331	0.0556
									3	EpiSen	UP	64.6	-0.96	2.15	0.376	0.0377
COB	Etna	3432	CA: Cobb	Calpine	38.8387	-122.7528	5.4	353	1	EpiSen	90	85.8	2.04	8.16	1.390	0.1210
									2	EpiSen	360	-93.0	-1.71	4.24	0.608	0.1110
									3	EpiSen	UP	41.4	-0.69	1.14	0.570	0.0365
1765	Etna	2016	CA:Napa;Fire Station 3	USGS	38.3305	-122.3185	63.1	144	1	EpiSen	90	0.5	0.06	0.18	0.047	0.0589
									2	EpiSen	360	0.6	0.06	0.13	0.043	0.0366
									3	EpiSen	UP	-0.4	-0.03	0.05	0.037	0.0174