3.7

M3.7 Earthquake 56 km SE of Boca de Yuma, Dominican RepublicMay 23, 2026

2026-05-23 23:00:24 UTC (2026-05-23) · approx. 6:00 PM UTC-5 local

MagnitudeM3.7(md)
Time23:00 UTC6:00 PM UTC-5
Depth78.0 kmintermediate depth
Coordinates18.041°, -68.209°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 23, 2026 at 23:00 UTC, a magnitude 3.7 intermediate depth earthquake struck 56 km SE of Boca de Yuma, Dominican Republic, at a depth of 78.0 km and coordinates 18.0415°, -68.2093°.

Physical scale: An earthquake of magnitude 3.7 releases seismic energy equivalent to roughly 5.2 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 212 m — a useful intuition for the size of the slip patch on the fault.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.0 mainshock that occurred 29 days ago 51 km S of Boca de Yuma, Dominican Republic. Since the mainshock, the USGS has recorded 4 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at 18.04°, -68.21°

Earthquake Details

Magnitude
3.7 md
Depth
78.0 km
intermediate depth
Location
18.0415°N
-68.2093°E

Technical Information

Event ID
pr2026143001
Event Type
earthquake
Status
✓ Reviewed
Significance
209
Stations Used
21
Azimuthal Gap
211.0°
Min Station Distance
0.503°
RMS Residual
0.27 sec
Last Updated
2026-06-08 23:47:04 UTC

Common Questions

How strong was the magnitude 3.7 earthquake near Boca de Yuma, Dominican Republic?

The magnitude 3.7 earthquake that struck 56 km SE of Boca de Yuma, Dominican Republic on May 23, 2026 at 23:00 UTC had a depth of 78.0 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 3.7 earthquakes can continue for several days and gradually diminish over time.

Is this the same earthquake as the M5.0 one earlier?

No. This magnitude 3.7 earthquake is an aftershock of the larger magnitude 5.0 mainshock that occurred earlier 51 km S of Boca de Yuma, Dominican Republic. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

Understanding This Data

Magnitude 3.7 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: pr2026143001). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, May 23, 2026). M3.7 Earthquake 56 km SE of Boca de Yuma, Dominican RepublicMay 23, 2026. Retrieved June 8, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr2026143001/