Link to USGS home page.
Earthquake Hazards Program

Magnitude 4.0 CARLSBERG RIDGE

Friday, August 22, 2008 at 18:08:07 UTC

Preliminary Earthquake Report

Versión en Español

Magnitude 4.0
Date-Time
  • Friday, August 22, 2008 at 18:08:07 (UTC) - Coordinated Universal Time
  • Friday, August 22, 2008 at 10:08:07 PM local time at epicenter

  • Time of Earthquake in other Time Zones
    Location 8.07N 59.29E
    Depth 10 kilometers
    Region CARLSBERG RIDGE
    Distances 810 km (510 miles) SE of Qalansiyah, Socotra Island, Yemen
    915 km (570 miles) ESE of Xaafuun, Somalia
    1830 km (1140 miles) ESE of SANA, Yemen
    2700 km (1670 miles) ENE of NAIROBI, Kenya
    Location Uncertainty Error estimate: horizontal +/- 25.7 km; depth fixed by location program
    Parameters Nst=17, Nph=17, Dmin=2644.7 km, Rmss=1.08 sec, Erho=25.7 km, Erzz=0 km, Gp=187.5 degrees
    Source USGS NEIC (WDCS-D)
    Event ID uswafv

    Location Maps

    Did You Feel It?
    Report shaking and damage at your location.

    Historic Seismicity

    Theoretical P-Wave Travel Times

     Historic Moment Tensor Solutions

    Phase (Arrival Time) Data

    Seismic Hazard Map

    Earthquake Density Maps

    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