3.0

M3.0 Earthquake 49 km NW of San Antonio, Puerto RicoApril 25, 2026

2026-04-25 07:02:10 UTC (1 hour ago)

On April 25, 2026 at 07:02 UTC, a magnitude 3.0 shallow crustal earthquake struck 49 km NW of San Antonio, Puerto Rico, at a depth of 24.6 km and coordinates 18.7865°, -67.4552°.

Map showing earthquake epicenter at 18.79°, -67.46°

Earthquake Details

Magnitude
3.0 md
Depth
24.6 km
shallow crustal
Location
18.7865°N
-67.4552°E

Technical Information

Event ID
pr71514623
Event Type
earthquake
Status
✓ Reviewed
Significance
141
Stations Used
11
Azimuthal Gap
317.0°
Min Station Distance
0.455°
RMS Residual
0.21 sec
Last Updated
2026-04-25 07:20:43 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near San Antonio, Puerto Rico?

The magnitude 3.0 earthquake that struck 49 km NW of San Antonio, Puerto Rico on April 25, 2026 at 07:02 UTC had a depth of 24.6 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.0 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.