Preliminary Earthquake Report

Magnitude 4.6 SOUTH SHETLAND ISLANDS

Thursday, October 22, 2009 at 22:38:56 UTC

Magnitude 4.6
Date-Time
  • Thursday, October 22, 2009 at 22:38:56 (UTC) - Coordinated Universal Time
  • Thursday, October 22, 2009 at 06:38:56 PM local time at epicenter

    • Time of Earthquake in other Time Zones
    Location 61.69S 55.50W
    Depth 38 kilometers
    Region SOUTH SHETLAND ISLANDS
    Distances 470 km (295 miles) WSW of Coronation Island, South Orkney Islands
    550 km (340 miles) NE of Palmer Station, Antarctica
    1065 km (670 miles) SE of Ushuaia, Argentina
    3030 km (1880 miles) S of BUENOS AIRES, Argentina
    Location Uncertainty Error estimate: horizontal +/- 17.9 km; depth +/- 19.8 km
    Parameters Nst=37, Nph=37, Dmin=548.9 km, Rmss=1.29 sec, Erho=17.9 km, Erzz=19.8 km, Gp=81.9 degrees
    Source USGS NEIC (WDCS-D)
    Event ID usnbft

    Earthquake Location

    Historic Seismicity