Back to map
M2.3 Depth: 13.7 km

M2.3 Earthquake near Boca, Puerto Rico (United States)

UTC time: 2026-07-28 18:31:31 UTC Local time: —

About this earthquake

On July 28, 2026 at 18:31 UTC, a magnitude M2.3 earthquake occurred near Boca, Puerto Rico (United States). With a focal depth of about 14 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 176 earthquakes, the strongest at M4.8.

Details

Magnitude
M2.3
Depth
13.7 km
UTC time
2026-07-28 18:31:31 UTC
Local time
—
Country
United States
State
Puerto Rico
City
Boca
County
Guayanilla
Source
usgs
Coordinates
17.94867, -66.83900
Temperature
31.2°C

Map

Depth profile

Depth profile Depth: 13.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 13.7 km
Shallow
13.7 km
13.7 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: 384 km ·Stratovolcano ·Elevation: 887 m ·Last eruption: 1640 ·Netherlands
  • Quill, The
    Distance: 414 km ·Stratovolcano ·Elevation: 601 m ·Last eruption: 250 ·Netherlands
  • Liamuiga
    Distance: 433 km ·Stratovolcano ·Elevation: 1'156 m ·Last eruption: 160 ·Saint Kitts and Nevis
  • Nevis Peak
    Distance: 460 km ·Stratovolcano ·Elevation: 985 m ·Saint Kitts and Nevis

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.

Share