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United States · Puerto Rico

M1.9 Earthquake near Montalva, Puerto Rico (United States)

UTC time: 2026-09-18 18:00:29 UTC Local time: —

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About this earthquake

A magnitude M1.9 earthquake was recorded near Montalva, Puerto Rico (United States) on September 18, 2026 at 18:00 UTC. The hypocenter lay relatively close to the surface at around 14 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 191 earthquakes were recorded in the past 24 hours, the strongest reaching M3.0.

Details

ID
21e127341113ad5a694630c3ca6c46649cf59085
Magnitude
M1.9
Depth
14.1 km
UTC time
2026-09-18 18:00:29 UTC
Local time
—
Country
United States
State
Puerto Rico
City
Montalva
County
Guánica
Source
usgs
Coordinates
17.93200, -66.92483
Temperature
30.7°C

Depth profile

Depth profile Depth: 14.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 14.1 km
Shallow
14.1 km
14.1 km — close to 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

Volcanoes nearby

  • Saba
    Distance: 393 km ·Stratovolcano ·Elevation: 887 m ·Last eruption: 1640 ·Netherlands
  • Quill, The
    Distance: 423 km ·Stratovolcano ·Elevation: 601 m ·Last eruption: 250 ·Netherlands
  • Liamuiga
    Distance: 442 km ·Stratovolcano ·Elevation: 1'156 m ·Last eruption: 160 ·Saint Kitts and Nevis
  • Nevis Peak
    Distance: 469 km ·Stratovolcano ·Elevation: 985 m ·Saint Kitts and Nevis

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

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

Source: OurAirports · Dataset date: 2026-09-21

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

21 Sep 2025 – 21 Sep 2026 · M ≥ 2.0 · 897 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · United States

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

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

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