2026-05-04 01:21:51 (M3.3) Puerto Rico region 18.6 -67.0 (90be5)

M3.3 Earthquake - Puerto Rico region

Preliminary Report

Magnitude	3.3
Date-Time	Universal Time (UTC): 4 May 2026 01:21:51 Time near the Epicenter (1): 3 May 2026 21:21:51 Time in your area (1): 3 May 2026 17:21:51
Location	18.556N 66.975W
Depth	82 km
Distances	8.1 km (5.0 mi) NE of Isabela, Puerto Rico 23.7 km (14.7 mi) NE of Aguadilla, Puerto Rico 24.3 km (15.1 mi) N of San Sebastián, Puerto Rico 28.8 km (17.9 mi) WNW of Arecibo, Puerto Rico 43.0 km (26.7 mi) NNE of Mayagüez, Puerto Rico
Location Uncertainty	Horizontal: 0.9 km; Vertical 0.6 km
Parameters	Nph = 44; Dmin = 9.5 km; Rmss = 0.22 seconds; Gp = 209° Version = 1
Event ID	pr 71515558

(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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