USGS National-Strong Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
December 16, 2005, Hercules, California Earthquake (posted 12/30/2005)
ML 3.4, 12/16/2005, 18:21 UTC, 12/16/2005, 10:21 AM PST, 38.006 N, 122.249 W, 5.6 km depth, Regional Network ID# nc40181915
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
1822	K2	1958	CA: Richmond; Point Isabel	USGS	37.8966	-122.3220	14	208	1	EpiSen	90	5.78	-0.082	0.17	0.0201	0.00119
									2	EpiSen	360	-7.94	0.138	0.23	0.0133	0.00119
									3	EpiSen	UP	6.32	-0.051	0.09	0.0079	0.00068
1765	Etna	2016	CA: Napa; Fire Station 03	USGS	38.330	-122.318	37	350	1	EpiSen	90	-0.99	-0.044	0.29	0.0158	0.00123
									2	EpiSen	360	0.83	0.048	0.25	0.0236	0.00187
									3	EpiSen	UP	-0.29	-0.011	0.09	0.0076	0.00040