4.0

M4.0 Earthquake 65 km N of Hatillo, Puerto RicoJuly 5, 2026

2026-07-05 10:35:55 UTC (1 hour ago) · approx. 6:35 AM UTC-4 local

MagnitudeM4.0(md)
Time10:35 UTC6:35 AM UTC-4
Depth39.0 kmshallow crustal
Coordinates19.074°, -66.739°
Felt by2DYFI responses
Status✓ Reviewed by USGS

On July 5, 2026 at 10:35 UTC, a magnitude 4.0 shallow crustal earthquake struck 65 km N of Hatillo, Puerto Rico, at a depth of 39.0 km and coordinates 19.0740°, -66.7390°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 13 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 325 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 19.07°, -66.74°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 2 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.0 earthquake near 65 km N of Hatillo, Puerto Rico

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.0 md
Depth
39.0 km
shallow crustal
Location
19.0740°N
-66.7390°E
Felt Reports
2
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
pr2026186000
Event Type
earthquake
Status
✓ Reviewed
Significance
241
Stations Used
27
Azimuthal Gap
188.0°
Min Station Distance
0.633°
RMS Residual
0.44 sec
Last Updated
2026-07-05 11:23:08 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Hatillo, Puerto Rico?

The magnitude 4.0 earthquake that struck 65 km N of Hatillo, Puerto Rico on July 5, 2026 at 10:35 UTC had a depth of 39.0 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 4.0 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.

Authoritative source: USGS event page (event ID: pr2026186000). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, July 5, 2026). M4.0 Earthquake 65 km N of Hatillo, Puerto RicoJuly 5, 2026. Retrieved July 5, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr2026186000/