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M2.1 Depth: 12.8 km

M2.1 Earthquake near Boca, Puerto Rico (United States)

UTC time: 2026-07-28 18:15:01 UTC Local time: —

About this earthquake

A magnitude M2.1 earthquake was recorded near Boca, Puerto Rico (United States) on July 28, 2026 at 18:15 UTC. With a focal depth of about 13 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: over the past 24 hours, QuakeMap24 logged 176 earthquakes, the strongest at M4.8.

Details

Magnitude
M2.1
Depth
12.8 km
UTC time
2026-07-28 18:15:01 UTC
Local time
—
Country
United States
State
Puerto Rico
City
Boca
County
Guayanilla
Source
usgs
Coordinates
17.94933, -66.84650
Temperature
31.2°C

Map

Depth profile

Depth profile Depth: 12.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.8 km
Shallow
12.8 km
12.8 km — close to the regional average (15.5 km)
Regional average: 15.5 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: 385 km ·Stratovolcano ·Elevation: 887 m ·Last eruption: 1640 ·Netherlands
  • Quill, The
    Distance: 415 km ·Stratovolcano ·Elevation: 601 m ·Last eruption: 250 ·Netherlands
  • Liamuiga
    Distance: 434 km ·Stratovolcano ·Elevation: 1'156 m ·Last eruption: 160 ·Saint Kitts and Nevis
  • Nevis Peak
    Distance: 461 km ·Stratovolcano ·Elevation: 985 m ·Saint Kitts and Nevis

Historic earthquake map · United States

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Country statistics · United States

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

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