USGS National-Strong Motion Program
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
July 26, 2005, Dillon, MT Earthquake (posted 07/26/2005 updated 09/21/2005)
Mw 5.6 (Harvard), 07/26/2005, 04:08 UTC, 07/25/2005, 10:08 PM MDT, 45.399 N, 112.550 W, 5.0 km depth, Regional Network ID# usazad
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
7216	K2	1949	MT: Dillon; Univ of Montana-Western	USGS	45.2091	-112.6381	22.2	198	1	EpiSen	90	125.0	-13.10	46.30	11.50	2.030
									2	EpiSen	360	-91.1	6.15	23.60	7.08	1.150
									3	EpiSen	UP	-61.6	2.62	12.50	3.71	0.320
2255	K2	1822	MT: Butte; Montana Tech	USGS	46.0109	-112.5572	68.0	360	1	EpiSen	90	-19.3	1.42	7.35	1.09	0.097
									2	EpiSen	360	19.0	-0.73	4.07	0.72	0.063
									3	EpiSen	UP	-11.8	-0.89	2.23	1.28	0.065
7220	K2	2001	MT:W Yellowstone;Hebgen Lk Ranger Sta	USGS	44.6670	-111.0991	115.1	125	1	EpiSen	90	-5.9	0.43	1.39	0.30	0.063
									2	EpiSen	360	5.1	0.46	1.15	0.36	0.046
									3	EpiSen	UP	2.9	0.19	0.54	0.12	0.034
2205	K2	1809	MT: Bozeman; Montana State Univ	USGS	45.6671	-111.0460	117.2	75	1	EpiSen	90	-8.0	0.40	2.96	0.67	0.036
									2	EpiSen	360	-7.1	0.41	2.19	0.37	0.051
									3	EpiSen	UP	4.2	-0.28	0.85	0.40	0.028
2202	K2	1814	MT: Helena; Carroll College	USGS	46.6000	-112.0372	139.3	16	1	EpiSen	90	7.9	0.42	2.19	0.58	0.058
									2	EpiSen	360	-7.9	-0.32	1.60	0.29	0.030
									3	EpiSen	UP	-5.9	0.45	1.35	0.46	0.055
2245	Etna	4020	MT: Helena; Ft Harrison VA Hospital	VA	46.6189	-112.1050	139.9	14	1	EpiSen	90	25.5	-0.95	6.11	0.88	0.071
									2	EpiSen	360	-17.5	-0.62	3.94	0.49	0.040
									3	EpiSen	UP	13.3	-0.52	2.48	0.73	0.048
7210	K2	1811	MT: Missoula; Fire Station # 1	USGS	46.8486	-114.0410	198.1	325	1	EpiSen	90	-7.8	-0.49	1.40	0.66	0.078
									2	EpiSen	360	12.0	-0.67	3.38	0.86	0.054
									3	EpiSen	UP	3.3	0.33	0.52	0.37	0.029
2222			ID: Lewiston; Dworshak Dam	ACOE	46.5150	-116.2958	315.7	294
	Etna	2584	Upper Gallery						1	EpiSen	51	9.4	-0.57	3.71	0.26	0.028
									2	EpiSen	321	1.5	-0.09	0.29	0.08	0.013
									3	EpiSen	UP	-2.8	-0.15	0.88	0.14	0.021
	Etna	3410	Lower Gallery									did not trigger
	SSA2	2291	Middle Gallery									did not trigger
	Etna	3411	Right Abutment									did not trigger
7209	K2	1816	MT: Kalispell; County Justice Center	USGS	48.1897	-114.3110	338.1	337	1	EpiSen	90	-3.3	-0.30	0.89	0.34	0.043
									2	EpiSen	360	-5.1	0.41	1.01	0.44	0.030
									3	EpiSen	UP	1.7	-0.12	0.56	0.14	0.016