M4.1 Earthquake 176 km NNE of Cruz Bay, U.S. Virgin Islands — August 31, 2025
2025-08-31 23:38:58 UTC (2025-08-31) · approx. 7:38 PM UTC-4 local
On August 31, 2025 at 23:38 UTC, a magnitude 4.1 shallow crustal earthquake struck 176 km NNE of Cruz Bay, U.S. Virgin Islands, at a depth of 63.0 km and coordinates 19.7741°, -64.0820°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 24 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 433 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 2 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-64.0820°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.1 earthquake near Cruz Bay, U.S. Virgin Islands?
The magnitude 4.1 earthquake that struck 176 km NNE of Cruz Bay, U.S. Virgin Islands on August 31, 2025 at 23:38 UTC had a depth of 63.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: pr2025243003). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, August 31, 2025). M4.1 Earthquake 176 km NNE of Cruz Bay, U.S. Virgin Islands — August 31, 2025. Retrieved November 19, 2025 from https://www.earthquaketracker.org/earthquakes/event/pr2025243003/