USGS National Engineering Strong-Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
October 02, 2008, Yucaipa, California Earthquake (posted 10/03/2008; updated 12/05/2008)
Mw 3.8, 10/02/2008, 09:41 UTC, 10/02/2008, 02:41 AM PDT, 34.084 N, 116.968 W, 12.5 km depth, Regional Network ID# ci14396336
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
5075	Etna	1436	CA:Forest Falls; Post Office	USGS	34.088	-116.919	4.5	84	1	FBA-2g	180	-24.1	-0.223	0.805	0.049	0.00415
									2	FBA-2g	UP	-85.7	0.675	0.897	0.069	0.00805
									3	FBA-2g	270	-11.9	-0.205	0.872	0.075	0.00639
5076	Etna	1434	CA:Yucaipa; Mill Creek Ranger Station	USGS	34.079	-117.045	7.1	266	1	FBA-2g	180	24.5	-0.589	2.01	0.072	0.00695
									2	FBA-2g	UP	20.8	0.420	1.27	0.075	0.00698
									3	FBA-2g	270	34.2	1.010	4.03	0.219	0.02780
5300	K2	1421	CA:Redlands; Seven Oaks Dam	ACOE	34.1105	-117.0986	12.4	284
			Downstream, surface						1	EpiSen	90	-103.0	1.850	4.010	0.202	0.02270
			Downstream, surface						2	EpiSen	360	-48.5	-0.782	1.560	0.087	0.00888
			Downstream, surface						3	EpiSen	UP	-33.5	0.398	0.765	0.057	0.00464
			Downstream, downhole 53'						4	EpiSen	90	-25.4	-0.626	2.380	0.126	0.01400
			Downstream, downhole 53'						5	EpiSen	360	10.0	0.216	0.623	0.026	0.00212
			Downstream, downhole 53'						6	EpiSen	UP	-9.2	-0.135	0.510	0.044	0.00298
5300	MW	194	CA:Redlands; Seven Oaks Dam	ACOE	34.1174	-117.0979	12.5	287
			Tunnel chamber						1	EpiSen	90	-7.0	0.180	0.522	0.097	0.00576
			Tunnel chamber						2	EpiSen	360	-7.5	0.149	0.499	0.041	0.00342
			Tunnel chamber						3	EpiSen	UP	4.0	-0.065	0.282	0.039	0.00204
			Right abutment						4	EpiSen	90	-18.1	-0.315	0.728	0.103	0.00650
			Right abutment						5	EpiSen	360	-18.4	0.448	1.640	0.097	0.01090
			Right abutment						6	EpiSen	UP	11.6	-0.247	0.955	0.064	0.00512
			Right crest (bad sensor)						7	EpiSen	90
			Right crest (bad sensor)						8	EpiSen	360
			Right crest (bad sensor)						9	EpiSen	UP
			Center crest, surface						10	EpiSen	90	-30.8	0.871	5.750	0.466	0.02680
			Center crest, surface						11	EpiSen	360	29.1	-1.180	7.560	0.420	0.02790
			Center crest, surface						12	EpiSen	UP	15.3	-0.472	2.250	0.120	0.01080
			Center crest, downhole 152'						13	EpiSen	UP	-8.2	-0.346	1.240	0.130	0.00984
			Center crest, dhole 152' (bad sensor)						14	EpiSen	360
			Center crest, downhole 152'						15	EpiSen	90	-12.2	0.538	1.960	0.325	0.01820
			Intake structure (bad sensor)						16	EpiSen	90
			Intake structure (bad sensor)						17	EpiSen	360
			Intake structure (bad sensor)						18	EpiSen	UP
5162	Etna	1417	CA:Mentone; Fire Station 9	USGS	34.067	-117.117	13.9	262	1	FBA-2g	180	12.4	-0.269	1.590	0.105	0.00742
									2	FBA-2g	UP	-7.8	0.181	0.628	0.076	0.00614
									3	FBA-2g	270	-10.3	0.204	0.963	0.127	0.00767
5161	Etna	1442	CA:Highland; Fire Station 8	USGS	34.136	-117.214	23.4	284	1	FBA-2g	360	33.4	-0.581	2.170	0.093	0.01100
									2	FBA-2g	UP	8.9	0.143	0.281	0.021	0.00169
									3	FBA-2g	90	30.0	0.579	0.872	0.059	0.00671
5336	Etna	1979	CA:San Bernardino, Serrano School	USGS	34.1449	-117.2188	24.1	286	1	EpiSen	90	-37.2	-0.922	2.210	0.128	0.01440
									2	EpiSen	360	17.6	-0.489	1.360	0.081	0.00948
									3	EpiSen	UP	16.6	0.314	0.742	0.046	0.00363
5073	K2	587	CA:Cabazon; Cabazon Post Office	USGS	33.9180	-116.7820	25.2	137	1	FBA-2g	180	-8.3	-0.189	0.559	0.083	0.00697
									2	FBA-2g	UP	10.4	0.105	0.370	0.098	0.00297
									3	FBA-2g	270	-20.7	-0.413	0.895	0.081	0.00763
5037	K2	592	CA:Reche Cyn; Olive Dell Ranch	USGS	34.0047	-117.2239	25.2	250	1	FBA-2g	360	-5.4	0.099	0.300	0.034	0.00237
									2	FBA-2g	UP	6.5	0.094	0.123	0.011	0.00104
									3	FBA-2g	90	-5.7	-0.101	0.313	0.027	0.00211
5331	Etna	2008	CA:San Bernardino;Del Rosa Work Sta	USGS	34.1663	-117.2512	27.7	289	1	EpiSen	111	-5.7	0.179	0.644	0.045	0.00511
									2	EpiSen	21	8.4	-0.242	1.110	0.045	0.00315
									3	EpiSen	UP	5.9	0.124	0.394	0.024	0.00192
5328	K2	599	CA:San Bernardino;Montecito Park	USGS	34.0469	-117.2770	28.8	262	1	FBA-2g	360	6.8	-0.163	0.598	0.071	0.00575
									2	FBA-2g	UP	4.6	0.083	0.360	0.026	0.00177
									3	FBA-2g	90	6.5	0.157	0.643	0.037	0.00312
5339	K2	584	CA:San Bernardino; Fire Sta 10	USGS	34.0910	-117.2890	29.6	272	1	FBA-2g	180	-4.9	0.096	0.445	0.049	0.00449
									2	FBA-2g	UP	4.1	0.049	0.129	0.027	0.00188
									3	FBA-2g	270	-5.9	-0.093	0.382	0.040	0.00320
5327	K2	593	CA:San Bernardino; Fire Sta 7	USGS	34.1652	-117.2886	30.9	287	1	FBA-2g	360	7.6	0.125	0.464	0.036	0.00256
									2	FBA-2g	UP	-6.4	0.059	0.290	0.021	0.00114
									3	FBA-2g	90	16.5	0.313	1.060	0.041	0.00360
5071	K2	544	CA:Morongo Valley; Fire Sta 461	USGS	34.0490	-116.5780	36.2	96	1	FBA-2g	360	-4.9	0.148	0.590	0.039	0.00341
									2	FBA-2g	UP	4.2	-0.068	0.420	0.045	0.00207
									3	FBA-2g	90	4.5	-0.131	0.646	0.055	0.00306
5275	Etna	1944	CA: Riverside; Mills Filter Plant	MWD	33.9200	-117.3206	37.3	241	1	FBA-2g	360	-9.8	-0.167	0.273	0.018	0.00204
									2	FBA-2g	UP	6.1	-0.070	0.162	0.011	0.00128
									3	FBA-2g	90	-11.2	0.141	0.213	0.012	0.00122
707	Etna	3701	CA: Lake Mathews Dam (Tower)	MWD	33.8490	-117.4547	52	240	1	EpiSen	90	14.2	-0.178	0.328	0.018	0.00135
									2	EpiSen	360	-14.7	0.228	0.348	0.019	0.00186
									3	EpiSen	UP	6.5	0.055	0.138	0.007	0.00070