4.3

M4.3 Earthquake 53 km SSE of Boca de Yuma, Dominican RepublicSeptember 26, 2025

2025-09-26 15:24:27 UTC (2025-09-26) · approx. 10:24 AM UTC-5 local

MagnitudeM4.3(md)
Time15:24 UTC10:24 AM UTC-5
Depth73.0 kmintermediate depth
Coordinates17.913°, -68.474°
Felt by1DYFI response
Status✓ Reviewed by USGS

On September 26, 2025 at 15:24 UTC, a magnitude 4.3 intermediate depth earthquake struck 53 km SSE of Boca de Yuma, Dominican Republic, at a depth of 73.0 km and coordinates 17.9126°, -68.4735°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 46 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 577 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 21 days ago 51 km S of Boca de Yuma, Dominican Republic. Since the mainshock, the USGS has recorded 3 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 17.91°, -68.47°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response 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 M4.3 earthquake near 53 km SSE of Boca de Yuma, Dominican Republic

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

Earthquake Details

Magnitude
4.3 md
Depth
73.0 km
intermediate depth
Location
17.9126°N
-68.4735°E
Felt Reports
1
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
pr2025269001
Event Type
earthquake
Status
✓ Reviewed
Significance
287
Stations Used
26
Azimuthal Gap
202.0°
Min Station Distance
0.608°
RMS Residual
0.69 sec
Last Updated
2025-12-11 21:40:47 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Boca de Yuma, Dominican Republic?

The magnitude 4.3 earthquake that struck 53 km SSE of Boca de Yuma, Dominican Republic on September 26, 2025 at 15:24 UTC had a depth of 73.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 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 4.3 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 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: pr2025269001). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, September 26, 2025). M4.3 Earthquake 53 km SSE of Boca de Yuma, Dominican RepublicSeptember 26, 2025. Retrieved December 11, 2025 from https://www.earthquaketracker.org/earthquakes/event/pr2025269001/