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United States · Puerto Rico

M4.6 Earthquake near Puerto Rico (United States)

UTC time: 2026-09-18 13:19:35 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded Content updated:

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

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About this earthquake

On September 18, 2026 at 13:19 UTC, a magnitude M4.6 earthquake occurred near Puerto Rico (United States). The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by USGS. United States: 151 earthquakes were recorded in the past 24 hours, the strongest reaching M4.7.

Details

ID
11716e05eb43ec9f290ba1a9c1329bbac68ea5b8
Magnitude
M4.6
Depth
10.0 km
UTC time
2026-09-18 13:19:35 UTC
Local time
—
Country
United States
State
Puerto Rico
City
Puerto Rico
Source
usgs
Coordinates
17.88390, -66.98220
Temperature
30.4°C

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 km
10 km — shallower than the regional average (15.2 km)
Regional average: 15.2 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Estimated impact

Green No or minimal impact expected.
Estimated population exposed
IV 157'031
67 Felt reports · max reported intensity 5.4

Ground shaking

IV
Light · Intensity (MMI) IV
Felt by many, no damage.

Tectonic context

Located on the Caribbean Plate.
Near the boundary Caribbean ↔ North America · about 201 km away

Volcanoes nearby

  • Saba
    Distance: 398 km ·Stratovolcano ·Elevation: 887 m ·Last eruption: 1640 ·Netherlands
  • Quill, The
    Distance: 428 km ·Stratovolcano ·Elevation: 601 m ·Last eruption: 250 ·Netherlands
  • Liamuiga
    Distance: 447 km ·Stratovolcano ·Elevation: 1'156 m ·Last eruption: 160 ·Saint Kitts and Nevis
  • Nevis Peak
    Distance: 474 km ·Stratovolcano ·Elevation: 985 m ·Saint Kitts and Nevis

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Eugenio Maria De Hostos AirportPuerto Rico · MAZ · TJMZ
    44.9 kmStraight-line distance
  • Mercedita International AirportPuerto Rico · PSE · TJPS
    46.5 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-18

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Puerto Rico

Context for this earthquake

18 Sep 2025 – 18 Sep 2026 · M ≥ 3.0 · 88 Catalogue entries

Of 87 other entries for this area and period, 0 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · United States

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Country statistics · United States

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View earthquake KPIs, strongest and latest events, and averages for this country.

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