M4.1 Earthquake 16 km NNW of Basse-Pointe, Martinique — September 13, 2026
2026-09-13 13:46:57 UTC (6 days ago) · approx. 9:46 AM UTC-4 local
On September 13, 2026 at 13:46 UTC, a magnitude 4.1 intermediate depth earthquake struck 16 km NNW of Basse-Pointe, Martinique, at a depth of 159.1 km and coordinates 15.0083°, -61.1587°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-61.1587°E
Technical Information
Common Questions
How strong was the magnitude 4.1 earthquake near Basse-Pointe, Martinique?
The magnitude 4.1 earthquake that struck 16 km NNW of Basse-Pointe, Martinique on September 13, 2026 at 13:46 UTC had a depth of 159.1 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 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000tia4). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 13, 2026). M4.1 Earthquake 16 km NNW of Basse-Pointe, Martinique — September 13, 2026. Retrieved September 19, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tia4/