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M4.4 Earthquake near 39 km NNW of San Antonio, Puerto Rico

UTC time: 2025-08-22 16:28:41 UTC Local time: —
Magnitude
M4.4
Depth
28.9 km
Source
USGS

39 km NNW of San Antonio, Puerto Rico

Map

About this earthquake

A magnitude M4.4 earthquake was recorded near 39 km NNW of San Antonio, Puerto Rico on August 22, 2025 at 16:28 UTC. The hypocenter lay relatively close to the surface at around 29 km, increasing how strongly it was felt. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The event was recorded by USGS.

Details

ID
b4e835aca207ba42bfbab13b3193401f2c905670
Magnitude
M4.4
Depth
28.9 km
UTC time
2025-08-22 16:28:41 UTC
Local time
—
Country
—
Source
usgs
Coordinates
18.82980, -67.22900
Temperature
29.0°C

Depth profile

Depth profile Depth: 28.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 28.9 km
Shallow
28.9 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: 443 km ·Stratovolcano ·Elevation: 887 m ·Last eruption: 1640 ·Netherlands
  • Quill, The
    Distance: 475 km ·Stratovolcano ·Elevation: 601 m ·Last eruption: 250 ·Netherlands
  • Liamuiga
    Distance: 495 km ·Stratovolcano ·Elevation: 1'156 m ·Last eruption: 160 ·Saint Kitts and Nevis

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Rafael Hernández International AirportPuerto Rico · BQN · TJBQ
    38.7 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-10

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

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Stats (last 24h)

Global (24h)
666
Country (24h)
—
—
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