Link to USGS home page.
Earthquake Hazards Program

Magnitude 3.8 ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA

Thursday, July 19, 2007 at 04:55:27 UTC

Preliminary Earthquake Report

Versión en Español

Magnitude 3.8
Date-Time
  • Thursday, July 19, 2007 at 04:55:27 (UTC) - Coordinated Universal Time
  • Wednesday, July 18, 2007 at 07:55:27 PM local time at epicenter

  • Time of Earthquake in other Time Zones
    Location 51.36N 173.74W
    Depth 33 kilometers
    Region ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA
    Distances 105 km (65 miles) SSE of Atka, Alaska
    210 km (130 miles) ESE of Adak, Alaska
    1830 km (1130 miles) WSW of Anchorage, Alaska
    2610 km (1620 miles) W of JUNEAU, Alaska
    Location Uncertainty Error estimate: horizontal +/- 17.3 km; depth +/- 33.0 km
    Parameters Nst=29, Nph=29, Dmin=380.0 km, Rmss=0.97 sec, Erho=17.3 km, Erzz=33.0 km, Gp=196.3 degrees
    Source USGS NEIC (WDCS-D)
    Event ID usezdy

    Location Maps

    Did You Feel It?
    Report shaking and damage at your location. You can also view a map displaying accumulated data from your report and others.

    Historic Seismicity

    Theoretical P-Wave Travel Times

     Historic Moment Tensor Solutions

    Phase (Arrival Time) Data

    Seismic Hazard Map

    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 Alaska

    Alaska Earthquake Information Center

    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

     


    FirstGov button  Take Pride in America button