3.3

M3.3 Earthquake 91 km N of Charlotte Amalie, U.S. Virgin IslandsApril 13, 2026

2026-04-13 18:42:14 UTC (2026-04-13) · approx. 2:42 PM UTC-4 local

MagnitudeM3.3(md)
Time18:42 UTC2:42 PM UTC-4
Depth17.3 kmshallow crustal
Coordinates19.168°, -64.851°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 13, 2026 at 18:42 UTC, a magnitude 3.3 shallow crustal earthquake struck 91 km N of Charlotte Amalie, U.S. Virgin Islands, at a depth of 17.3 km and coordinates 19.1678°, -64.8512°.

Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 114 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 19.17°, -64.85°

Earthquake Details

Magnitude
3.3 md
Depth
17.3 km
shallow crustal
Location
19.1678°N
-64.8512°E

Technical Information

Event ID
pr71513593
Event Type
earthquake
Status
✓ Reviewed
Significance
168
Stations Used
10
Azimuthal Gap
261.0°
Min Station Distance
0.775°
RMS Residual
0.45 sec
Last Updated
2026-04-25 17:03:16 UTC

Common Questions

How strong was the magnitude 3.3 earthquake near Charlotte Amalie, U.S. Virgin Islands?

The magnitude 3.3 earthquake that struck 91 km N of Charlotte Amalie, U.S. Virgin Islands on April 13, 2026 at 18:42 UTC had a depth of 17.3 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 3.3 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: pr71513593). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, April 13, 2026). M3.3 Earthquake 91 km N of Charlotte Amalie, U.S. Virgin IslandsApril 13, 2026. Retrieved May 19, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr71513593/