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Earthquake Hazards Program

Magnitude 5.7 BANDA SEA

Tuesday, April 21, 2009 at 05:33:22 UTC

Preliminary Earthquake Report

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Magnitude 5.7
Date-Time
  • Tuesday, April 21, 2009 at 05:33:22 (UTC) - Coordinated Universal Time
  • Tuesday, April 21, 2009 at 02:33:22 PM local time at epicenter

  • Time of Earthquake in other Time Zones
    Location 4.22S 129.66E
    Depth 35 kilometers
    Region BANDA SEA
    Distances 175 km (110 miles) ESE of Ambon, Moluccas, Indonesia
    415 km (260 miles) SSW of Sorong, Papua, Indonesia
    915 km (570 miles) N of DARWIN, Northern Territory, Australia
    2550 km (1580 miles) E of JAKARTA, Java, Indonesia
    Location Uncertainty Error estimate: horizontal +/- 8.0 km; depth +/- 19.2 km
    Parameters Nst=126, Nph=126, Dmin=1101.2 km, Rmss=1.02 sec, Erho=8.0 km, Erzz=19.2 km, Gp=43.0 degrees
    Source USGS NEIC (WDCS-D)
    Event ID usfsap

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    Historic Seismicity

    Theoretical P-Wave Travel Times

     Global CMT Project Moment Tensor Solution

     Historic Moment Tensor Solutions

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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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