3.9

M3.9 Earthquake 103 km N of Charlotte Amalie, U.S. Virgin IslandsJanuary 29, 2024

2024-01-29 23:38:24 UTC (2024-01-29) · approx. 7:38 PM UTC-4 local

MagnitudeM3.9(md)
Time23:38 UTC7:38 PM UTC-4
Depth24.0 kmshallow crustal
Coordinates19.275°, -64.833°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 29, 2024 at 23:38 UTC, a magnitude 3.9 shallow crustal earthquake struck 103 km N of Charlotte Amalie, U.S. Virgin Islands, at a depth of 24.0 km and coordinates 19.2750°, -64.8333°.

Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 10 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 291 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 19.27°, -64.83°

Earthquake Details

Magnitude
3.9 md
Depth
24.0 km
shallow crustal
Location
19.2750°N
-64.8333°E

Technical Information

Event ID
pr2024029010
Event Type
earthquake
Status
✓ Reviewed
Significance
233
Stations Used
18
Azimuthal Gap
297.0°
Min Station Distance
0.931°
RMS Residual
0.35 sec
Last Updated
2024-04-13 19:27:18 UTC

Common Questions

How strong was the magnitude 3.9 earthquake near Charlotte Amalie, U.S. Virgin Islands?

The magnitude 3.9 earthquake that struck 103 km N of Charlotte Amalie, U.S. Virgin Islands on January 29, 2024 at 23:38 UTC had a depth of 24.0 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 3.9 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.9 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: pr2024029010). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, January 29, 2024). M3.9 Earthquake 103 km N of Charlotte Amalie, U.S. Virgin IslandsJanuary 29, 2024. Retrieved April 13, 2024 from https://www.earthquaketracker.org/earthquakes/event/pr2024029010/