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Earthquake Hazards Program

Magnitude 3.3 GREATER LOS ANGELES AREA, CALIFORNIA

Thursday, September 04, 2008 at 08:42:03 UTC

Preliminary Earthquake Report

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Magnitude 3.3
Date-Time
  • Thursday, September 04, 2008 at 08:42:03 (UTC) - Coordinated Universal Time
  • Thursday, September 04, 2008 at 01:42:03 AM local time at epicenter

  • Time of Earthquake in other Time Zones
    Location 34.00N 117.11W
    Depth 13 kilometers
    Region GREATER LOS ANGELES AREA, CALIFORNIA
    Distances 20 km (15 miles) SE of San Bernardino, California
    25 km (15 miles) WNW of Banning, California
    25 km (15 miles) ENE of Riverside, California
    640 km (400 miles) SE of SACRAMENTO, California
    Location Uncertainty Error estimate not available, held by USGS NEIC to another agency's solution
    Parameters not available
    Source USGS/CalTech, California Institute of Technology, Pasadena, USA
    Remarks Felt (III) at Mentone, Moreno Valley, Redlands, Riverside and Yucaipa; (II) at Highland and Sun City. Also felt at Belmont, Crestline, Forest Falls, Hemet, Lake Arrowhead, Loma Linda, Menifee, Newberry Springs and Upland.
    Event ID uswnar

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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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