M3.1 Earthquake 64 km NE of Cruz Bay, U.S. Virgin Islands — July 19, 2026
2026-07-19 04:22:30 UTC (9 hours ago) · approx. 12:22 AM UTC-4 local
On July 19, 2026 at 04:22 UTC, a magnitude 3.1 shallow crustal earthquake struck 64 km NE of Cruz Bay, U.S. Virgin Islands, at a depth of 38.1 km and coordinates 18.7422°, -64.3643°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 607 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 79 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-64.3643°E
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Common Questions
How strong was the magnitude 3.1 earthquake near Cruz Bay, U.S. Virgin Islands?
The magnitude 3.1 earthquake that struck 64 km NE of Cruz Bay, U.S. Virgin Islands on July 19, 2026 at 04:22 UTC had a depth of 38.1 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 3.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr71524928). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 19, 2026). M3.1 Earthquake 64 km NE of Cruz Bay, U.S. Virgin Islands — July 19, 2026. Retrieved July 19, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr71524928/