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Earthquake Hazards Program

Magnitude 2.8 COLORADO

Thursday, October 29, 2009 at 11:38:12 UTC

Preliminary Earthquake Report

Magnitude 2.8
Date-Time
  • Thursday, October 29, 2009 at 11:38:12 (UTC) - Coordinated Universal Time
  • Thursday, October 29, 2009 at 05:38:12 AM local time at epicenter

  • Time of Earthquake in other Time Zones
    Location 37.30N 104.99W
    Depth 5.0 kilometers
    Region COLORADO
    Distances 40 km (25 miles) SSW of Walsenburg, Colorado
    45 km (30 miles) WNW of Trinidad, Colorado
    65 km (40 miles) NW of Raton, New Mexico
    270 km (170 miles) S of DENVER, Colorado
    Location Uncertainty Error estimate: horizontal +/- 11.0 km; depth fixed by location program
    Parameters Nst=13, Nph=13, Dmin=66.7 km, Rmss=1.14 sec, Erho=11.0 km, Erzz=0 km, Gp=84.2 degrees
    Source USGS NEIC (WDCS-D)
    Event ID usniaz

    Earthquake Location

    Earthquake Location

    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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