M3.9 Earthquake 172 km NNW of The Valley, Anguilla — March 28, 2026
2026-03-28 22:28:38 UTC (2026-03-28) · approx. 6:28 PM UTC-4 local
On March 28, 2026 at 22:28 UTC, a magnitude 3.9 shallow crustal earthquake struck 172 km NNW of The Valley, Anguilla, at a depth of 30.0 km and coordinates 19.6806°, -63.6070°.
Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 12 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 315 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-63.6070°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.9 earthquake near The Valley, Anguilla?
The magnitude 3.9 earthquake that struck 172 km NNW of The Valley, Anguilla on March 28, 2026 at 22:28 UTC had a depth of 30.0 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 3.9 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.
Actions
Understanding This Data
Magnitude 3.9 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr2026087002). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, March 28, 2026). M3.9 Earthquake 172 km NNW of The Valley, Anguilla — March 28, 2026. Retrieved May 15, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr2026087002/