M4.0 Earthquake 136 km NNW of Charlotte Amalie, U.S. Virgin Islands — February 28, 2025
2025-02-28 21:27:06 UTC (2025-02-28) · approx. 5:27 PM UTC-4 local
On February 28, 2025 at 21:27 UTC, a magnitude 4.0 intermediate depth earthquake struck 136 km NNW of Charlotte Amalie, U.S. Virgin Islands, at a depth of 92.0 km and coordinates 19.5386°, -65.2386°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 341 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-65.2386°E
Technical Information
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Common Questions
How strong was the magnitude 4.0 earthquake near Charlotte Amalie, U.S. Virgin Islands?
The magnitude 4.0 earthquake that struck 136 km NNW of Charlotte Amalie, U.S. Virgin Islands on February 28, 2025 at 21:27 UTC had a depth of 92.0 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr2025059003). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, February 28, 2025). M4.0 Earthquake 136 km NNW of Charlotte Amalie, U.S. Virgin Islands — February 28, 2025. Retrieved May 8, 2025 from https://www.earthquaketracker.org/earthquakes/event/pr2025059003/