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Earthquake Hazards Program

Magnitude 4.4 SOUTH SANDWICH ISLANDS REGION

Tuesday, July 03, 2007 at 19:30:06 UTC

Preliminary Earthquake Report

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Magnitude 4.4
Date-Time
  • Tuesday, July 03, 2007 at 19:30:06 (UTC) - Coordinated Universal Time
  • Tuesday, July 03, 2007 at 05:30:06 PM local time at epicenter

  • Time of Earthquake in other Time Zones
    Location 55.29S 28.32W
    Depth 10 kilometers
    Region SOUTH SANDWICH ISLANDS REGION
    Distances 170 km (105 miles) NNW of Visokoi Island, South Sandwich Islands
    425 km (265 miles) NNW of Bristol Island, South Sandwich Islands
    540 km (335 miles) ESE of Grytviken, South Georgia
    3270 km (2030 miles) SE of BUENOS AIRES, Argentina
    Location Uncertainty Error estimate: horizontal +/- 19.4 km; depth fixed by location program
    Parameters Nst=14, Nph=14, Dmin=3159.1 km, Rmss=0.83 sec, Erho=19.4 km, Erzz=0 km, Gp=110.3 degrees
    Source USGS NEIC (WDCS-D)
    Event ID useicg

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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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