M3.3 Earthquake 146 km N of Charlotte Amalie, U.S. Virgin Islands — July 15, 2025
2025-07-15 17:21:15 UTC (2025-07-15) · approx. 1:21 PM UTC-4 local
On July 15, 2025 at 17:21 UTC, a magnitude 3.3 shallow crustal earthquake struck 146 km N of Charlotte Amalie, U.S. Virgin Islands, at a depth of 20.8 km and coordinates 19.6667°, -64.8745°.
Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 110 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-64.8745°E
Technical Information
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Common Questions
How strong was the magnitude 3.3 earthquake near Charlotte Amalie, U.S. Virgin Islands?
The magnitude 3.3 earthquake that struck 146 km N of Charlotte Amalie, U.S. Virgin Islands on July 15, 2025 at 17:21 UTC had a depth of 20.8 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 3.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.3 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr71489338). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, July 15, 2025). M3.3 Earthquake 146 km N of Charlotte Amalie, U.S. Virgin Islands — July 15, 2025. Retrieved September 20, 2025 from https://www.earthquaketracker.org/earthquakes/event/pr71489338/