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Earthquake Hazards Program

Magnitude 3.9 GUERRERO, MEXICO

Saturday, July 14, 2007 at 02:20:17 UTC

Preliminary Earthquake Report

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Magnitude 3.9
Date-Time
  • Saturday, July 14, 2007 at 02:20:17 (UTC) - Coordinated Universal Time
  • Friday, July 13, 2007 at 09:20:17 PM local time at epicenter

  • Time of Earthquake in other Time Zones
    Location 16.80N 98.19W
    Depth 47 kilometers
    Region GUERRERO, MEXICO
    Distances 120 km (75 miles) SSW of Huajuapan de Leon, Oaxaca, Mexico
    160 km (100 miles) W of Oaxaca, Oaxaca, Mexico
    160 km (100 miles) ESE of Chilpancingo, Guerrero, Mexico
    305 km (190 miles) SSE of MEXICO CITY, D.F., Mexico
    Location Uncertainty Error estimate: horizontal +/- 32.4 km; depth +/- 24.8 km
    Parameters Nst=33, Nph=33, Dmin=353.4 km, Rmss=1.17 sec, Erho=32.4 km, Erzz=24.8 km, Gp=240.3 degrees
    Source USGS NEIC (WDCS-D)
    Event ID useuah

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    NB: The official magnitude for this earthquake is indicated at the top of this page. This was the best available estimate of the earthquake's size, at the time that this page was created. Other magnitudes associated with web pages linked from here are those determined at various times following the earthquake with different types of seismic data. Although, given the data used, they are legitimate estimates of magnitude they are not considered the official magnitude.

    The region name is an automatically generated name from the Flinn-Engdahl (F-E) seismic and geographical regionalization scheme. The boundaries of these regions are defined at one-degree intervals and therefore differ from irregular political boundaries. More->

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

     


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