2026-10-28 09:43:59 (M3.8) Puerto Rico region 17.9 -65.3 (90be5)

M3.8 Earthquake - Puerto Rico region

Preliminary Report

Magnitude	3.8
Date-Time	Universal Time (UTC): 28 Oct 2026 09:43:59 Time near the Epicenter (1): 28 Oct 2026 05:43:59 Time in your area (1): 28 Oct 2026 01:43:59
Location	17.948N 65.340W
Depth	32 km
Distances	21.5 km (13.4 mi) SE of Esperanza, Puerto Rico 24.8 km (15.4 mi) SSE of Isabel Segunda, Puerto Rico 53.3 km (33.0 mi) SE of Fajardo, Puerto Rico 56.2 km (34.8 mi) ESE of Humacao, Puerto Rico 61.5 km (38.1 mi) SW of Charlotte Amalie, U.S. Virgin Islands
Location Uncertainty	Horizontal: 5.0 km; Vertical 3.5 km
Parameters	Nph = 33; Dmin = 27.9 km; Rmss = 0.64 seconds; Gp = 161° Version =
Event ID	us 7000ttn0

(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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