2021-11-11 00:28:51 (M4.9) north of Ascension Island -2.5 -12.3 (1cbfb)

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M4.9 Earthquake - north of Ascension Island

Preliminary Report
Magnitude 4.9
Date-Time
  • 11 Nov 2021 00:28:52 UTC
  • 10 Nov 2021 23:28:52 near epicenter
  • 10 Nov 2021 16:28:52 standard time in your timezone
Location 2.537S 12.274W
Depth 10 km
Distances
  • 641.6 km (397.8 mi) NNE of Georgetown, Saint Helena
  • 908.9 km (563.5 mi) SSW of Greenville, Liberia
  • 917.8 km (569.0 mi) SSW of Harper, Liberia
  • 944.4 km (585.5 mi) SW of Tabou, Ivory Coast
  • 962.7 km (596.9 mi) SSW of Buchanan, Liberia
Location Uncertainty Horizontal: 4.9 km; Vertical 1.9 km
Parameters Nph = 47; Dmin = 1308.6 km; Rmss = 0.61 seconds; Gp = 66°
Version =
Event ID us 7000ft3z

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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