Magnitude 4.5 - WESTERN MONTANA

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2007 May 08 15:46:49 UTC

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Earthquake Details

  • This event has been reviewed by a seismologist.
Location45.394°N, 112.130°W
Depth13.5 km (8.4 miles) set by location program
Distances45 km (30 miles) ENE of Dillon, Montana
75 km (45 miles) SSE of Butte, Montana
90 km (55 miles) WSW of Bozeman, Montana
135 km (85 miles) S of HELENA, Montana
Location UncertaintyError estimate not available
ParametersNST=117, Nph=117, Dmin=36.7 km, Rmss=0 sec, Gp= 22°,
M-type=teleseismic moment magnitude (Mw), Version=U
  • Montana Bureau of Mines and Geology, Butte, USA
Event IDus2007ccay
  • Did you feel it? Report shaking and damage at your location. You can also view a map displaying accumulated data from your report and others.

Earthquake Summary

Small globe showing earthquakeSmall map showing earthquake
  • The following is a release by the United States Geological Survey, National Earthquake Information Center: An earthquake occurred 60 km (35 miles) NE of Dillon, Montana at 9:46 AM MDT, May 8, 2007 (8:46 AM PDT in Us). The magnitude and location may be revised when additional data and further analysis results are available. There have been no reports of damage.

  • Felt Reports

    MD 4.7 (BUT). Several buildings slightly damaged at Sheridan. Felt (V) at Sheridan and Twin Bridges; (IV) at Dillon, Norris and Virginia City; (III) at Anaconda, Bozeman, Butte, Clancy, Corvallis, Deer Lodge, Divide, Ennis, Gallatin Gateway, Hamilton, Helena, Manhattan, Missoula, Salmon, Stevensville, Three Forks, Victor and Whitehall; (II) at Boise, Florence and Great Falls. Felt at Belgrade, Big Timber, Billings, Boulder, Cardwell, Cascade, Darby, East Helena, Elk City, Fort Benton, Gardiner, Garrison, Helmville, Leadore, Lewistown, Lincoln, Lolo, Moscow, North Fork, Philipsburg, Pony, Radersburg, Silverstar, Sula and Warm Springs. Also felt at Pullman, Washington.

    Earthquake Information for Montana