2026-10-03 10:35:36 (M3.9) Mona Passage 18.5 -67.5 (90be5)

M3.9 Earthquake - Mona Passage

Preliminary Report

Magnitude	3.9
Date-Time	Universal Time (UTC): 3 Oct 2026 10:35:36 Time near the Epicenter (1): 3 Oct 2026 06:35:36 Time in your area (1): 3 Oct 2026 02:35:36
Location	18.488N 67.486W
Depth	10 km
Distances	29.8 km (18.5 mi) WNW of Rincón, Puerto Rico 35.7 km (22.1 mi) W of Aguadilla, Puerto Rico 48.5 km (30.1 mi) NW of Mayagüez, Puerto Rico 48.8 km (30.2 mi) W of Isabela, Puerto Rico 54.1 km (33.5 mi) NW of Hormigueros, Puerto Rico
Location Uncertainty	Horizontal: 3.0 km; Vertical 2.0 km
Parameters	Nph = 19; Dmin = 39.6 km; Rmss = 1.00 seconds; Gp = 172° Version =
Event ID	us 6000tzc3

(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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