2026-07-04 02:21:40 (M3.4) Mona Passage 19.0 -67.6 (90be5)

M3.4 Earthquake - Mona Passage

Preliminary Report

Magnitude	3.4
Date-Time	Universal Time (UTC): 4 Jul 2026 02:21:41 Time near the Epicenter (1): 3 Jul 2026 22:21:41 Time in your area (1): 3 Jul 2026 18:21:41
Location	18.956N 67.603W
Depth	39 km
Distances	74.0 km (45.9 mi) NW of San Antonio, Puerto Rico 75.3 km (46.7 mi) NW of Aguadilla, Puerto Rico 79.2 km (49.1 mi) NW of Isabela, Puerto Rico 94.1 km (58.4 mi) ENE of Punta Cana, Dominican Republic 94.3 km (58.4 mi) NW of San Sebastián, Puerto Rico
Location Uncertainty	Horizontal: 7.0 km; Vertical 27.8 km
Parameters	Nph = 24; Dmin = 75.0 km; Rmss = 0.91 seconds; Gp = 180° Version =
Event ID	us 6000ta10

(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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