M3.4 Earthquake 44 km SSW of Boca de Yuma, Dominican Republic — September 4, 2025
2025-09-04 19:09:44 UTC (2025-09-04) · approx. 2:09 PM UTC-5 local
On September 4, 2025 at 19:09 UTC, a magnitude 3.4 intermediate depth earthquake struck 44 km SSW of Boca de Yuma, Dominican Republic, at a depth of 81.3 km and coordinates 18.0003°, -68.7547°.
Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 2.0 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 138 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 25 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.
Earthquake Details
-68.7547°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.4 earthquake near Boca de Yuma, Dominican Republic?
The magnitude 3.4 earthquake that struck 44 km SSW of Boca de Yuma, Dominican Republic on September 4, 2025 at 19:09 UTC had a depth of 81.3 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 3.4 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 3.4 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.
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Understanding This Data
Magnitude 3.4 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr71494713). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, September 4, 2025). M3.4 Earthquake 44 km SSW of Boca de Yuma, Dominican Republic — September 4, 2025. Retrieved September 4, 2025 from https://www.earthquaketracker.org/earthquakes/event/pr71494713/