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Earthquake Hazards Program

Magnitude 3.3 OREGON

Thursday, July 12, 2007 at 03:53:21 UTC

Preliminary Earthquake Report

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Magnitude 3.3
Date-Time
  • Thursday, July 12, 2007 at 03:53:21 (UTC) - Coordinated Universal Time
  • Wednesday, July 11, 2007 at 08:53:21 PM local time at epicenter

  • Time of Earthquake in other Time Zones
    Location 45.25N 122.72W
    Depth 20 kilometers
    Region OREGON
    Distances 15 km (10 miles) SW of Oregon City, Oregon
    30 km (20 miles) S of Portland, Oregon
    35 km (25 miles) SE of Hillsboro, Oregon
    40 km (25 miles) NE of SALEM, Oregon
    Location Uncertainty Error estimate not available, held by USGS NEIC to another agency's solution
    Parameters not available
    Source Geophysics Program, University of Washington, Seattle, USA
    Remarks Felt (III) at Aurora, Beaverton, Canby, Gladstone, Hubbard, Lake Oswego, Molalla, Mulino, Oregon City, Portland, Sherwood, Tualatin, West Linn, Wilsonville and Woodburn; (II) at Beaver Creek, Clackamas, Gaston, Newberg, Salem and Washougal. Felt as far north as Woodland, as far east as Sandy, as far south as Silverton and as far west as McMinnville.
    Event ID usesaf

    Location Maps

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    Historic Seismicity

    Theoretical P-Wave Travel Times

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    Earthquake Density Maps

    National Seismic Hazard Mapping Project USGS National Seismic Hazard Mapping Project

    Current information about the rate at which earthquakes occur in different areas, and on how far strong shaking extends from the earthquake source.

    Earthquake Information for Oregon

    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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