M3.1 Earthquake 63 km NNW of Charlotte Amalie, U.S. Virgin Islands — July 13, 2026
2026-07-13 08:21:02 UTC (2 hours ago) · approx. 4:21 AM UTC-4 local
On July 13, 2026 at 08:21 UTC, a magnitude 3.1 shallow crustal earthquake struck 63 km NNW of Charlotte Amalie, U.S. Virgin Islands, at a depth of 17.2 km and coordinates 18.8768°, -65.1468°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 629 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 80 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-65.1468°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.1 earthquake near Charlotte Amalie, U.S. Virgin Islands?
The magnitude 3.1 earthquake that struck 63 km NNW of Charlotte Amalie, U.S. Virgin Islands on July 13, 2026 at 08:21 UTC had a depth of 17.2 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 3.1 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.
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Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr71523648). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 13, 2026). M3.1 Earthquake 63 km NNW of Charlotte Amalie, U.S. Virgin Islands — July 13, 2026. Retrieved July 13, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr71523648/