2025-08-28 15:46:06 (M3.1) Mona Passage 18.1 -67.8 (90be5)

M3.1 Earthquake - Mona Passage

Preliminary Report

Magnitude	3.1
Date-Time	Universal Time (UTC): 28 Aug 2025 15:46:07 Time near the Epicenter (1): 28 Aug 2025 11:46:07 Time in your area (1): 28 Aug 2025 07:46:07
Location	18.091N 67.812W
Depth	20 km
Distances	65.0 km (40.3 mi) WSW of Stella, Puerto Rico 65.5 km (40.6 mi) WSW of Rincón, Puerto Rico 70.5 km (43.7 mi) W of Cabo Rojo, Puerto Rico 72.2 km (44.7 mi) W of Mayagüez, Puerto Rico 72.6 km (45.0 mi) W of Hormigueros, Puerto Rico
Location Uncertainty	Horizontal: 1.3 km; Vertical 17.6 km
Parameters	Nph = 20; Dmin = 74.9 km; Rmss = 0.20 seconds; Gp = 197° Version = 1
Event ID	pr 71493683

(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
Puerto Rico Seismic Network
University of Puerto Rico
http://redsismica.uprm.edu/

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