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Earthquake Hazards Program

Magnitude 3.1 DOMINICAN REPUBLIC REGION

Saturday, April 18, 2009 at 00:09:21 UTC

Preliminary Earthquake Report

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Magnitude 3.1
Date-Time
  • Saturday, April 18, 2009 at 00:09:21 (UTC) - Coordinated Universal Time
  • Friday, April 17, 2009 at 08:09:21 PM local time at epicenter

  • Time of Earthquake in other Time Zones
    Location 19.28N 68.02W
    Depth 104 kilometers
    Region DOMINICAN REPUBLIC REGION
    Distances 140 km (85 miles) NE of La Romana, Dominican Republic
    150 km (95 miles) NW of Mayaguez, Puerto Rico
    215 km (135 miles) ENE of SANTO DOMINGO, Dominican Republic
    220 km (135 miles) WNW of SAN JUAN, Puerto Rico
    Location Uncertainty Error estimate not available, held by USGS NEIC to another agency's solution
    Parameters not available
    Source Red Sísmica de Puerto Rico, Universidad de Puerto Rico, Mayagüez
    Event ID usfpak

    Location Maps

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    Historic Seismicity

    Theoretical P-Wave Travel Times

     Historic Moment Tensor Solutions

    Phase (Arrival Time) Data

    Seismic Hazard Map

    Earthquake Density Maps

    Earthquake Information for the Caribbean

    Earthquakes: Frequently Asked Questions

    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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