2023-10-18 22:02:32 (M3.9) Southern Alaska 60.2 -152.1 (1cbfb)

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M3.9 Earthquake - Southern Alaska

Preliminary Report
Magnitude 3.9
Date-Time
  • Universal Time (UTC): 18 Oct 2023 22:02:33
  • Time near the Epicenter (1): 18 Oct 2023 14:02:33
  • Time in your area (1): 18 Oct 2023 14:02:33
Location 60.165N 152.060W
Depth 74 km
Distances
  • 25.3 km (15.7 mi) WNW of Ninilchik, Alaska
  • 166.4 km (103.2 mi) SW of Anchorage, Alaska
  • 187.3 km (116.1 mi) SW of Eagle River, Alaska
  • 201.1 km (124.7 mi) SW of Knik-Fairview, Alaska
  • 935.7 km (580.1 mi) W of Whitehorse, Canada
Location Uncertainty Horizontal: 3.2 km; Vertical 7.1 km
Parameters Nph = 42; Dmin = 48.7 km; Rmss = 0.87 seconds; Gp = 37°
Version =
Event ID us 6000lggw

(1) Nominal Standard Time; local and daylight savings time zone may differ.
For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
National Earthquake Information Center
U.S. Geological Survey


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