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United States · Puerto Rico

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

UTC time: 2026-08-23 00:37:38 UTC Local time: —

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About this earthquake

On August 23, 2026 at 00:37 UTC, a magnitude M1.9 earthquake occurred near Guayanilla, Puerto Rico (United States). With a focal depth of about 17 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 148 earthquakes were recorded in the past 24 hours, the strongest reaching M4.0.

Details

ID
77efc8dbea1785835774290e026b5d77d4f5eb28
Magnitude
M1.9
Depth
16.8 km
UTC time
2026-08-23 00:37:38 UTC
Local time
—
Country
United States
State
Puerto Rico
City
Guayanilla
County
Guayanilla
Source
usgs
Coordinates
17.98850, -66.80517
Temperature
25.4°C

Depth profile

Depth profile Depth: 16.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 16.8 km
Shallow
16.8 km
16.8 km — close to the regional average (15.3 km)
Regional average: 15.3 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: 381 km ·Stratovolcano ·Elevation: 887 m ·Last eruption: 1640 ·Netherlands
  • Quill, The
    Distance: 411 km ·Stratovolcano ·Elevation: 601 m ·Last eruption: 250 ·Netherlands
  • Liamuiga
    Distance: 430 km ·Stratovolcano ·Elevation: 1'156 m ·Last eruption: 160 ·Saint Kitts and Nevis
  • Nevis Peak
    Distance: 457 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
    25.7 kmStraight-line distance
  • Eugenio Maria De Hostos AirportPuerto Rico · MAZ · TJMZ
    46.9 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-06

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

06 Sep 2025 – 06 Sep 2026 · M ≥ 2.0 · 851 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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