USGS National-Strong Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
February 13, 2012, Weitchpec, California Earthquake (posted 02/13/2012; updated 02/15/2012)
Mw 5.6, 02/13/2012, 21:07 UTC, 02/13/2012, 01:07 PM PST, 41.153 N, 123.817 W, 32.9 km depth, Regional Network ID# nc71734741
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
1580	Etna	2023	CA:Arcata;Humboldt State Univ	USGS	40.8741	-124.0764	37.9	215	1	EpiSen	90	-17.4	0.82	4.10	0.651	0.0740
									2	EpiSen	360	-13.0	0.53	2.47	0.461	0.0749
									3	EpiSen	UP	-5.1	-0.22	0.84	0.294	0.0631
1581	Etna	2021	CA:Eureka;South Bay School	USGS	40.7350	-124.2076	56.9	215	1	EpiSen	90	-18.1	-1.20	2.93	0.835	0.1240
									2	EpiSen	360	-21.8	1.71	3.88	1.230	0.1060
									3	EpiSen	UP	7.9	0.31	1.83	0.252	0.0582
1586	Etna	1993	CA:Loleta;Fire Station	USGS	40.6442	-124.2207	66.0	211	1	EpiSen	90	6.5	0.57	2.37	0.680	0.1170
									2	EpiSen	360	-4.4	0.39	1.30	0.612	0.0974
									3	EpiSen	UP	4.0	0.31	1.19	0.271	0.0549
1023	Etna	1990	CA:Ferndale;Fire Station	USGS	40.5762	-124.2637	74.3	211	1	EpiSen	90	-18.3	1.22	2.52	1.370	0.1230
									2	EpiSen	360	-12.7	0.91	3.55	0.718	0.0717
									3	EpiSen	UP	6.6	-0.39	1.34	0.347	0.0591
1584	Etna	2003	CA:Ferndale;Bunker Hill, FAA	USGS	40.4976	-124.2945	83.2	209	1	EpiSen	90	5.3	0.36	1.02	0.540	0.0423
									2	EpiSen	360	4.5	-0.26	0.74	0.531	0.0435
									3	EpiSen	UP	*	*
		*	unstable baseline