M3.6 Earthquake 108 km N of Charlotte Amalie, U.S. Virgin Islands — July 21, 2026
2026-07-21 01:00:51 UTC (8 hours ago) · approx. 9:00 PM UTC-4 local
On July 21, 2026 at 01:00 UTC, a magnitude 3.6 shallow crustal earthquake struck 108 km N of Charlotte Amalie, U.S. Virgin Islands, at a depth of 19.0 km and coordinates 19.3176°, -64.8385°.
Physical scale: An earthquake of magnitude 3.6 releases seismic energy equivalent to roughly 3.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 172 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-64.8385°E
Technical Information
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Common Questions
How strong was the magnitude 3.6 earthquake near Charlotte Amalie, U.S. Virgin Islands?
The magnitude 3.6 earthquake that struck 108 km N of Charlotte Amalie, U.S. Virgin Islands on July 21, 2026 at 01:00 UTC had a depth of 19.0 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 3.6 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.6 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr2026202000). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 21, 2026). M3.6 Earthquake 108 km N of Charlotte Amalie, U.S. Virgin Islands — July 21, 2026. Retrieved July 21, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr2026202000/