2023-01-21 21:56:59 (M4.9) southern Mid-Atlantic Ridge -48.9 -8.4 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.9 Earthquake - southern Mid-Atlantic Ridge

Preliminary Report

Magnitude	4.9
Date-Time	21 Jan 2023 21:56:59 UTC 21 Jan 2023 20:56:59 near epicenter 21 Jan 2023 13:56:59 standard time in your timezone
Location	48.924S 8.375W
Depth	10 km
Distances	1355.3 km (840.3 mi) SSE of Edinburgh of the Seven Seas, Saint Helena 2760.4 km (1711.4 mi) WSW of Retreat, South Africa 2765.5 km (1714.6 mi) WSW of Claremont, South Africa 2767.0 km (1715.6 mi) WSW of Cape Town, South Africa 2767.1 km (1715.6 mi) WSW of Lansdowne, South Africa
Location Uncertainty	Horizontal: 12.6 km; Vertical 1.9 km
Parameters	Nph = 23; Dmin = 3046.8 km; Rmss = 0.28 seconds; Gp = 113° Version =
Event ID	us 7000j64j

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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