2025-10-31 16:52:39 (M3.5) Puerto Rico region 18.9 -66.8 (90be5)

M3.5 Earthquake - Puerto Rico region

Preliminary Report

Magnitude	3.5
Date-Time	Universal Time (UTC): 31 Oct 2025 16:52:40 Time near the Epicenter (1): 31 Oct 2025 12:52:40 Time in your area (1): 31 Oct 2025 08:52:40
Location	18.909N 66.793W
Depth	35 km
Distances	46.9 km (29.1 mi) N of Hatillo, Puerto Rico 49.0 km (30.4 mi) N of Arecibo, Puerto Rico 51.4 km (31.8 mi) NNE of Isabela, Puerto Rico 57.4 km (35.6 mi) NNW of Barceloneta, Puerto Rico 62.0 km (38.5 mi) NNW of Manatí, Puerto Rico
Location Uncertainty	Horizontal: 5.5 km; Vertical 2.0 km
Parameters	Nph = 15; Dmin = 55.3 km; Rmss = 0.28 seconds; Gp = 191° Version =
Event ID	us 6000rklc

(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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