M3.8 Earthquake 176 km NNE of Cruz Bay, U.S. Virgin Islands — December 1, 2023
2023-12-01 23:02:47 UTC (2023-12-01) · approx. 7:02 PM UTC-4 local
On December 1, 2023 at 23:02 UTC, a magnitude 3.8 shallow crustal earthquake struck 176 km NNE of Cruz Bay, U.S. Virgin Islands, at a depth of 52.0 km and coordinates 19.8655°, -64.3295°.
Physical scale: An earthquake of magnitude 3.8 releases seismic energy equivalent to roughly 7.6 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 252 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-64.3295°E
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Common Questions
How strong was the magnitude 3.8 earthquake near Cruz Bay, U.S. Virgin Islands?
The magnitude 3.8 earthquake that struck 176 km NNE of Cruz Bay, U.S. Virgin Islands on December 1, 2023 at 23:02 UTC had a depth of 52.0 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 3.8 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.8 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr2023335006). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, December 1, 2023). M3.8 Earthquake 176 km NNE of Cruz Bay, U.S. Virgin Islands — December 1, 2023. Retrieved February 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/pr2023335006/