2026-08-28 19:12:55 (M4.9) Southwest Indian Ridge -28.3 62.5 (90be5)

M4.9 Earthquake - Southwest Indian Ridge

Preliminary Report

Magnitude	4.9
Date-Time	Universal Time (UTC): 28 Aug 2026 19:12:55 Time near the Epicenter (1): 28 Aug 2026 23:12:55 Time in your area (1): 28 Aug 2026 11:12:55
Location	28.323S 62.544E
Depth	10 km
Distances	959.7 km (595.0 mi) S of Baie aux Huîtres, Mauritius 961.0 km (595.8 mi) S of Port Mathurin, Mauritius 1004.1 km (622.5 mi) SSE of Plaine Magnien, Mauritius 1004.7 km (622.9 mi) SSE of Surinam, Mauritius 1004.7 km (622.9 mi) SSE of Mahébourg, Mauritius
Location Uncertainty	Horizontal: 8.5 km; Vertical 1.9 km
Parameters	Nph = 77; Dmin = 952.1 km; Rmss = 0.71 seconds; Gp = 44° Version =
Event ID	us 7000tcnj

(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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