2020-12-29 23:34:57 (M5.9) central Mid-Atlantic Ridge -0.8 -21.1 (70fa9)

M5.9 Earthquake - central Mid-Atlantic Ridge

Preliminary Report

Magnitude	5.9
Date-Time	29 Dec 2020 23:34:58 UTC 29 Dec 2020 22:34:58 near epicenter 30 Dec 2020 05:04:58 standard time in your timezone
Location	0.763S 21.121W
Depth	10 km
Distances	1087.0 km (674.0 mi) NW of Georgetown, Saint Helena 1337.4 km (829.2 mi) SW of Goderich, Sierra Leone 1345.7 km (834.3 mi) SW of Waterloo, Sierra Leone 1346.0 km (834.5 mi) SW of Freetown, Sierra Leone 1365.6 km (846.7 mi) SW of Robertsport, Liberia
Location Uncertainty	Horizontal: 4.1 km; Vertical 1.8 km
Parameters	Nph = 106; Dmin = 1090.1 km; Rmss = 0.75 seconds; Gp = 89° Version =
Event ID	us 6000d454

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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