2026-04-27 06:31:25 (M3.7) Puerto Rico region 17.9 -67.0 (90be5)

M3.7 Earthquake - Puerto Rico region

Preliminary Report

Magnitude	3.7
Date-Time	Universal Time (UTC): 27 Apr 2026 06:31:25 Time near the Epicenter (1): 27 Apr 2026 02:31:25 Time in your area (1): 26 Apr 2026 22:31:25
Location	17.896N 66.975W
Depth	10 km
Distances	11.0 km (6.8 mi) SW of Guánica, Puerto Rico 20.3 km (12.6 mi) SW of Yauco, Puerto Rico 21.9 km (13.6 mi) SSE of San Germán, Puerto Rico 27.8 km (17.2 mi) SE of Cabo Rojo, Puerto Rico 31.4 km (19.5 mi) SSE of Hormigueros, Puerto Rico
Location Uncertainty	Horizontal: 2.3 km; Vertical 5.7 km
Parameters	Nph = 33; Dmin = 18.8 km; Rmss = 0.61 seconds; Gp = 176° Version =
Event ID	us 6000st3p

(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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