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Earthquake Hazards Program

 

Magnitude 6.8 - SOUTHEASTERN ALASKA

2004 June 28 09:49:47 UTC

Earthquake Details

Magnitude 6.8 (Strong)
Date-Time
  • Monday, June 28, 2004 at 09:49:47 (UTC)
    = Coordinated Universal Time
  • Monday, June 28, 2004 at 1:49:47 AM
    = local time at epicenter
  • Time of Earthquake in other Time Zones
    Location 55.007°N, 134.378°W
    Depth 15.5 km (9.6 miles)
    Region SOUTHEASTERN ALASKA
    Distances
  • 94 km (59 miles) WSW (237°) from Craig, AK
  • 101 km (63 miles) WSW (258°) from Hydaburg, AK
  • 102 km (63 miles) SW (234°) from Klawock, AK
  • 995 km (618 miles) NW (314°) from Vancouver, British Columbia, Canada
  • Location Uncertainty horizontal +/- 3.8 km (2.4 miles); depth +/- 7.4 km (4.6 miles)
    Parameters Nst=213, Nph=213, Dmin=235.7 km, Rmss=0.86 sec, Gp= 68°,
    M-type=teleseismic moment magnitude (Mw), Version=Q
    Source USGS NEIC (WDCS-D)
    Event ID uskgak
    • This event has been reviewed by a seismologist.
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    • Preliminary Earthquake Report
    • U.S. Geological Survey, National Earthquake Information Center
      World Data Center for Seismology, Denver

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