M3.8 Earthquake 40 km SE of Christiansted, U.S. Virgin Islands — July 8, 2023
2023-07-08 18:42:37 UTC (2023-07-08) · approx. 2:42 PM UTC-4 local
On July 8, 2023 at 18:42 UTC, a magnitude 3.8 shallow crustal earthquake struck 40 km SE of Christiansted, U.S. Virgin Islands, at a depth of 31.0 km and coordinates 17.5156°, -64.4118°.
Physical scale: An earthquake of magnitude 3.8 releases seismic energy equivalent to roughly 6.8 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 241 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-64.4118°E
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Common Questions
How strong was the magnitude 3.8 earthquake near Christiansted, U.S. Virgin Islands?
The magnitude 3.8 earthquake that struck 40 km SE of Christiansted, U.S. Virgin Islands on July 8, 2023 at 18:42 UTC had a depth of 31.0 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: pr2023189002). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, July 8, 2023). M3.8 Earthquake 40 km SE of Christiansted, U.S. Virgin Islands — July 8, 2023. Retrieved September 9, 2023 from https://www.earthquaketracker.org/earthquakes/event/pr2023189002/