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M3.1 Depth: 18.0 km

M3.1 Earthquake near 5 km N of Ponce, Puerto Rico (United States)

UTC time: 2025-08-31 10:10:29 UTC Local time: —

About this earthquake

On August 31, 2025 at 10:10 UTC, a magnitude M3.1 earthquake occurred near 5 km N of Ponce, Puerto Rico (United States). With a focal depth of about 18 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 240 earthquakes, the strongest at M3.9.

Details

Magnitude
M3.1
Depth
18.0 km
UTC time
2025-08-31 10:10:29 UTC
Local time
—
Country
United States
City
Puerto Rico
Source
usgs
Coordinates
18.06200, -66.61660
Temperature
29.4°C

Map

Depth profile

Depth profile Depth: 18 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 18 km
Shallow
18 km
18 km — close to the regional average (15.4 km)
Regional average: 15.4 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: 362 km ·Stratovolcano ·Elevation: 887 m ·Last eruption: 1640 ·Netherlands
  • Quill, The
    Distance: 393 km ·Stratovolcano ·Elevation: 601 m ·Last eruption: 250 ·Netherlands
  • Liamuiga
    Distance: 412 km ·Stratovolcano ·Elevation: 1'156 m ·Last eruption: 160 ·Saint Kitts and Nevis
  • Nevis Peak
    Distance: 440 km ·Stratovolcano ·Elevation: 985 m ·Saint Kitts and Nevis
  • Soufriere Hills
    Distance: 494 km ·Stratovolcano ·Elevation: 915 m ·Last eruption: 2013 ·United Kingdom

Historic earthquake map · United States

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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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