M3.7 Earthquake 133 km NNW of Charlotte Amalie, U.S. Virgin Islands — January 6, 2021
2021-01-06 23:37:10 UTC (2021-01-06) · approx. 7:37 PM UTC-4 local
On January 6, 2021 at 23:37 UTC, a magnitude 3.7 shallow crustal earthquake struck 133 km NNW of Charlotte Amalie, U.S. Virgin Islands, at a depth of 50.0 km and coordinates 19.5191°, -65.2193°.
Physical scale: An earthquake of magnitude 3.7 releases seismic energy equivalent to roughly 5.2 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 212 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-65.2193°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.7 earthquake near Charlotte Amalie, U.S. Virgin Islands?
The magnitude 3.7 earthquake that struck 133 km NNW of Charlotte Amalie, U.S. Virgin Islands on January 6, 2021 at 23:37 UTC had a depth of 50.0 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 3.7 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.7 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr2021006019). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, January 6, 2021). M3.7 Earthquake 133 km NNW of Charlotte Amalie, U.S. Virgin Islands — January 6, 2021. Retrieved January 7, 2021 from https://www.earthquaketracker.org/earthquakes/event/pr2021006019/