2017-10-23 10:07:50 (M4.9) southwest of Africa -52.4 16.8 (90be5)

M4.9 - southwest of Africa

Preliminary Earthquake Report

Magnitude	4.9
Date-Time	23 Oct 2017 10:07:50 UTC 23 Oct 2017 10:07:50 near epicenter 23 Oct 2017 02:07:50 standard time in your timezone
Location	52.353S 16.775E
Depth	10 km
Distances	1996.9 km (1238.1 mi) S of Bredasdorp, South Africa 2002.1 km (1241.3 mi) S of Hermanus, South Africa 2030.0 km (1258.6 mi) S of Grabouw, South Africa 2037.4 km (1263.2 mi) S of Retreat, South Africa 2051.4 km (1271.9 mi) S of Cape Town, South Africa
Location Uncertainty	Horizontal: 7.0 km; Vertical 1.9 km
Parameters	Nph = 21; Dmin = 2243.6 km; Rmss = 0.91 seconds; Gp = 105° Version =
Event ID	us 1000avv4

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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