USGS National-Strong Motion Project
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
October 20, 2006, Cobb, California Earthquake (posted 10/20/2006)
Mw 4.5, 10/20/2006, 17:00 UTC, 10/20/2006, 10:00 AM PDT, 38.867 N, 122.788 W, 4.2 km depth, Regional Network ID# nc40190077
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	Etna	3432	CA: Cobb	CALPINE	38.8387	-122.7528	4.4	136	1	EPI	90	135.00	-2.82	11.600	0.566	0.119
								136	2	EPI	360	-132.00	-4.41	20.000	1.080	0.199
								136	3	EPI	UP	-81.90	-2.08	4.940	0.600	0.104
ADSP	Etna	3433	CA: Anderson Springs	CALPINE	38.7742	-122.7044	12.6	145				*	*	*	*	*
1764	Etna	2032	CA: St Helena; Fire Sta # 17	USGS	38.507	-122.471	48.6	145	1	EPI	90	5.33	-0.18	0.624	0.108	0.044
									2	EPI	360	4.17	-0.13	0.327	0.106	0.018
									3	EPI	UP	1.21	-0.05	0.129	0.055	0.016
1765	Etna	2016	CA: Napa; Fire Station # 3	USGS	38.330	-122.318	72.3	145	1	EPI	90	1.16	0.09	0.241	0.066	0.057
									2	EPI	360	-1.07	-0.06	0.293	0.050	0.034
									3	EPI	UP	-0.51	0.05	0.127	0.055	0.018
*		operational, but no data due to full disk