2025-08-28 16:06:19 UPDATED: (M3.8) Mona Passage 18.1 -67.7 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M3.8 Earthquake - Mona Passage

Preliminary Report

Magnitude	3.8
Date-Time	Universal Time (UTC): 28 Aug 2025 16:06:20 Time near the Epicenter (1): 28 Aug 2025 12:06:20 Time in your area (1): 28 Aug 2025 08:06:20
Location	18.134N 67.721W
Depth	72 km
Distances	54.3 km (33.6 mi) WSW of Stella, Puerto Rico 54.8 km (34.0 mi) WSW of Rincón, Puerto Rico 61.1 km (37.9 mi) W of Cabo Rojo, Puerto Rico 61.9 km (38.4 mi) W of Mayagüez, Puerto Rico 62.8 km (38.9 mi) W of Hormigueros, Puerto Rico
Location Uncertainty	Horizontal: 1.4 km; Vertical 1.0 km
Parameters	Nph = 44; Dmin = 64.7 km; Rmss = 0.20 seconds; Gp = 198° Version =
Event ID	pr 2025240001 ***This event supersedes event US7000qrkb.

(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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