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Earthquake Hazards Program

Preliminary Earthquake Report

Magnitude 3.1 SOUTH DAKOTA

Wednesday, February 07, 2007 at 10:35:58 UTC

Magnitude 3.1
Date-Time
  • Wednesday, February 07, 2007 at 10:35:58 (UTC) - Coordinated Universal Time
  • Wednesday, February 07, 2007 at 03:35:58 AM local time at epicenter

  • Time of Earthquake in other Time Zones
    Location 44.04N 102.57W
    Depth 5 kilometers
    Region SOUTH DAKOTA
    Distances 30 km (15 miles) WNW of Wall, South Dakota
    55 km (35 miles) E of Rapid City, South Dakota
    90 km (55 miles) WNW of Kadoka, South Dakota
    180 km (115 miles) W of PIERRE, South Dakota
    Location Uncertainty Error estimate: horizontal +/- 11.9 km; depth fixed by location program
    Parameters Nst=18, Nph=18, Dmin=116.7 km, Rmss=0.91 sec, Erho=11.9 km, Erzz=0 km, Gp=170.5 degrees
    Source USGS NEIC (WDCS-D)
    Remarks mbLg 3.1 (GS).
    Event ID usyman

    Earthquake Location, USGS Topographic Map
    USGS Topographic Map, Resolution: 16.0 meters/pixel


    1 km

    Earthquake Location, USGS Aerial Photo
    USGS Aerial Photo, Resolution: 16.0 meters/pixel


    1 km

     


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