2026-04-04 04:55:32 (M5.5) Mid-Indian Ridge -21.9 68.9 (70fa9)

M5.5 Earthquake - Mid-Indian Ridge

Preliminary Report

Magnitude	5.5
Date-Time	Universal Time (UTC): 4 Apr 2026 04:55:32 Time near the Epicenter (1): 4 Apr 2026 09:55:32 Time in your area (1): 4 Apr 2026 10:25:32
Location	21.871S 68.913E
Depth	10 km
Distances	621.4 km (385.2 mi) ESE of Port Mathurin, Mauritius 1173.5 km (727.6 mi) E of Bel Air Rivière Sèche, Mauritius 1175.7 km (728.9 mi) E of Mahébourg, Mauritius 1178.4 km (730.6 mi) E of Plaine Magnien, Mauritius 1178.6 km (730.7 mi) E of Centre de Flacq, Mauritius
Location Uncertainty	Horizontal: 9.5 km; Vertical 1.9 km
Parameters	Nph = 64; Dmin = 622.2 km; Rmss = 0.87 seconds; Gp = 40° Version =
Event ID	us 6000smhl

(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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