2025-08-09 22:51:50 (M4.6) central Mid-Atlantic Ridge 2.7 -31.3 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.6 Earthquake - central Mid-Atlantic Ridge

Preliminary Report

Magnitude	4.6
Date-Time	Universal Time (UTC): 9 Aug 2025 22:51:50 Time near the Epicenter (1): 9 Aug 2025 20:51:50 Time in your area (1): 9 Aug 2025 14:51:50
Location	2.733N 31.317W
Depth	10 km
Distances	737.0 km (456.9 mi) N of Fernando de Noronha (Distrito Estadual), Brazil 1012.4 km (627.7 mi) NNE of São Miguel, Brazil 1031.9 km (639.8 mi) NNE of Ceará Mirim, Brazil 1033.2 km (640.6 mi) NNE of Extremoz, Brazil 1037.6 km (643.3 mi) NNE of Natal, Brazil
Location Uncertainty	Horizontal: 5.3 km; Vertical 1.9 km
Parameters	Nph = 33; Dmin = 1073.9 km; Rmss = 1.13 seconds; Gp = 90° Version =
Event ID	us 6000qzj3

(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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