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M1.6 Depth: 2.5 km

M1.6 Earthquake near 8 km NW of Adjuntas, Puerto Rico (United States)

UTC time: 2026-05-04 17:07:00 UTC Local time: —

About this earthquake

On May 4, 2026 at 17:07 UTC, a magnitude M1.6 earthquake occurred near 8 km NW of Adjuntas, Puerto Rico (United States). The hypocenter lay relatively close to the surface at around 2 km, increasing how strongly it was felt. 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 187 earthquakes, the strongest at M3.6.

Details

Magnitude
M1.6
Depth
2.5 km
UTC time
2026-05-04 17:07:00 UTC
Local time
—
Country
United States
City
Puerto Rico
Source
usgs
Coordinates
18.21517, -66.77667
Temperature
30.1°C

Map

Depth profile

Depth profile Depth: 2.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 2.5 km
Shallow
2.5 km
2.5 km — shallower than the regional average (15.9 km)
Regional average: 15.9 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: 381 km ·Stratovolcano ·Elevation: 887 m ·Last eruption: 1640 ·Netherlands
  • Quill, The
    Distance: 412 km ·Stratovolcano ·Elevation: 601 m ·Last eruption: 250 ·Netherlands
  • Liamuiga
    Distance: 431 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

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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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