2021-07-04 03:53:43 (M4.6) central Mid-Atlantic Ridge -0.7 -20.8 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.6 Earthquake - central Mid-Atlantic Ridge

Preliminary Report

Magnitude	4.6
Date-Time	4 Jul 2021 03:53:43 UTC 4 Jul 2021 02:53:43 near epicenter 3 Jul 2021 19:53:43 standard time in your timezone
Location	0.661S 20.781W
Depth	10 km
Distances	1070.0 km (663.4 mi) NW of Georgetown, Saint Helena 1304.4 km (808.8 mi) SW of Goderich, Sierra Leone 1312.4 km (813.7 mi) SW of Waterloo, Sierra Leone 1313.1 km (814.1 mi) SW of Freetown, Sierra Leone 1328.8 km (823.9 mi) SW of Robertsport, Liberia
Location Uncertainty	Horizontal: 6.2 km; Vertical 1.9 km
Parameters	Nph = 37; Dmin = 1073.0 km; Rmss = 0.98 seconds; Gp = 110° Version =
Event ID	us 7000eikm

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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