2023-04-09 22:11:20 (M5.7) southern Mid-Atlantic Ridge -48.2 -9.9 (70fa9)

M5.7 Earthquake - southern Mid-Atlantic Ridge

Preliminary Report

Magnitude	5.7
Date-Time	Universal Time (UTC): 9 Apr 2023 22:11:20 Time near the Epicenter (1): 9 Apr 2023 21:11:20 Time in your area (1): 10 Apr 2023 03:41:20
Location	48.176S 9.874W
Depth	10 km
Distances	1249.9 km (775.0 mi) S of Edinburgh of the Seven Seas, Saint Helena 2825.5 km (1751.8 mi) WSW of Retreat, South Africa 2830.3 km (1754.8 mi) WSW of Claremont, South Africa 2831.6 km (1755.6 mi) WSW of Cape Town, South Africa 2832.0 km (1755.9 mi) WSW of Lansdowne, South Africa
Location Uncertainty	Horizontal: 8.1 km; Vertical 1.9 km
Parameters	Nph = 31; Dmin = 1966.9 km; Rmss = 0.55 seconds; Gp = 100° Version =
Event ID	us 6000k34x

(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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