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USGSOctober 3, 2026

M3.9 earthquake, 19 km NW of Rincón, Puerto Rico

A magnitude 3.9 earthquake was recorded 19 km NW of Rincón, Puerto Rico at a depth of 6 km, according to the U.S. Geological Survey. It was the 9,550th earthquake of magnitude 2.5 or more the USGS located in and near the U.S. in 2026, against 12,608 a year on average in 2016-2025.

M3.9

The notice

Issued by
U.S. Geological Survey
Area
19 km NW of Rincón, Puerto Rico
State
Puerto Rico
Magnitude
3.9 (duration magnitude)
Depth
6.0 km
Time
2026-10-03 10:35:38 UTC
Felt reports
11 people told the USGS they felt it (strongest reported intensity 3.1)
Status
reviewed by a seismologist
Epicentre
18.446, -67.398
Official source
U.S. Geological Survey: the notice at its source

Warnings and earthquakes in Puerto RicoEarthquakes, October 2026

Source: U.S. Geological Survey: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The record around this notice