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Earthquake Hazards Program

 

Magnitude 4.2 - WESTERN MONTANA

2006 March 22 17:24:32 UTC

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Earthquake Details

Magnitude 4.2 (Light)
Date-Time
  • Wednesday, March 22, 2006 at 17:24:32 (UTC)
    = Coordinated Universal Time
  • Wednesday, March 22, 2006 at 10:24:32 AM
    = local time at epicenter
    • Time of Earthquake in other Time Zones
    Location 48.828°N, 115.200°W
    Depth 8.2 km (5.1 miles) set by location program
    Region WESTERN MONTANA
    Distances
  • 8 km (5 miles) SSW (196°) from Rexford, MT
  • 12 km (8 miles) WSW (242°) from Eureka, MT
  • 23 km (14 miles) WNW (288°) from Fortine, MT
  • 208 km (129 miles) NE (51°) from Spokane, WA
  • 545 km (338 miles) ENE (73°) from Seattle, WA
    		•
    Location Uncertainty Error estimate not available
    Parameters Nst= 84, Nph= 84, Dmin=97.8 km, Rmss=0 sec, Gp= 43°,
    M-type=local magnitude (ML), Version=R
    Source BUT
    Event ID uskpaz
    • This event has been reviewed by a seismologist.

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    Earthquake Summary

    Small Globe Small map showing earthquake

    • Felt Reports

    Items knocked from shelves (IV) and heard at Eureka. Felt (IV) at Troy; (III) at Kila, Libby and Rexford. Felt at Bigfork, Fortine, Great Falls, Kalispell, Olney and Poulson. Also felt at Bonners Ferry and Naples, Idaho.

    Earthquake Information for Montana

    Scientific & Technical Information

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

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