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M3.3 Depth: 16.9 km

M3.3 Earthquake near 2 km ENE of Magas Arriba, Puerto Rico (United States)

UTC time: 2025-07-28 08:10:28 UTC Local time: —

About this earthquake

A magnitude M3.3 earthquake was recorded near 2 km ENE of Magas Arriba, Puerto Rico (United States) on July 28, 2025 at 08:10 UTC. With a focal depth of about 17 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 data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 258 earthquakes, the strongest at M4.1.

Details

Magnitude
M3.3
Depth
16.9 km
UTC time
2025-07-28 08:10:28 UTC
Local time
—
Country
United States
City
Puerto Rico
Source
usgs
Coordinates
18.02717, -66.74350
Temperature
25.9°C

Map

Depth profile

Depth profile Depth: 16.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 16.9 km
Shallow
16.9 km
16.9 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: 375 km ·Stratovolcano ·Elevation: 887 m ·Last eruption: 1640 ·Netherlands
  • Quill, The
    Distance: 405 km ·Stratovolcano ·Elevation: 601 m ·Last eruption: 250 ·Netherlands
  • Liamuiga
    Distance: 424 km ·Stratovolcano ·Elevation: 1'156 m ·Last eruption: 160 ·Saint Kitts and Nevis
  • Nevis Peak
    Distance: 452 km ·Stratovolcano ·Elevation: 985 m ·Saint Kitts and Nevis

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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