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Magnitude 5.6 - WESTERN MONTANA
2005 July 26 04:08:36 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver

A moderate earthquake occurred at 04:08:36 (UTC) on Tuesday, July 26, 2005. The magnitude 5.6 event has been located in WESTERN MONTANA. (This event has been reviewed by a seismologist.)

Magnitude	5.6
Date-Time	Tuesday, July 26, 2005 at 04:08:36 (UTC) = Coordinated Universal Time Monday, July 25, 2005 at 10:08:36 PM = local time at epicenter
Location	45.398°N, 112.550°W
Depth	5 km (3.1 miles) set by location program
Region	WESTERN MONTANA
Distances	21 km (13 miles) NNE (18°) from Dillon, MT 24 km (15 miles) SW (226°) from Twin Bridges, MT 28 km (18 miles) WSW (257°) from Sheridan, MT 353 km (220 miles) NE (55°) from Boise, ID 519 km (323 miles) N (354°) from Salt Lake City, UT
Location Uncertainty	horizontal +/- 6.5 km (4.0 miles); depth fixed by location program
Parameters	Nst= 75, Nph= 75, Dmin=67.7 km, Rmss=1.04 sec, Gp= 43°, M-type=moment magnitude (Mw), Version=6
Source	USGS NEIC (WDCS-D)
Event ID	usazad

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