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USGSSeptember 18, 2026

M4.8 earthquake, 5 km SW of Guánica, Puerto Rico

A magnitude 4.8 earthquake was recorded 5 km SW of Guánica, Puerto Rico at a depth of 7 km, according to the U.S. Geological Survey. It was the 9,145th 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.

M4.8

The notice

Issued by
U.S. Geological Survey
Area
5 km SW of Guánica, Puerto Rico
State
Puerto Rico
Magnitude
4.8 (local magnitude)
Depth
7.0 km
Time
2026-09-18 13:19:35 UTC
Felt reports
86 people told the USGS they felt it (strongest reported intensity 5.9)
Status
reviewed by a seismologist
Epicentre
17.939, -66.945
Official source
U.S. Geological Survey: the notice at its source

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.