3.3

M3.3 Earthquake 62 km NNW of Charlotte Amalie, U.S. Virgin IslandsAugust 5, 2026

2026-08-05 09:18:25 UTC (2 hours ago) · approx. 5:18 AM UTC-4 local

MagnitudeM3.3(md)
Time09:18 UTC5:18 AM UTC-4
Depth48.2 kmshallow crustal
Coordinates18.884°, -65.104°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 5, 2026 at 09:18 UTC, a magnitude 3.3 shallow crustal earthquake struck 62 km NNW of Charlotte Amalie, U.S. Virgin Islands, at a depth of 48.2 km and coordinates 18.8837°, -65.1037°.

Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.5 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 122 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 18.88°, -65.10°

Earthquake Details

Magnitude
3.3 md
Depth
48.2 km
shallow crustal
Location
18.8837°N
-65.1037°E

Technical Information

Event ID
pr71527613
Event Type
earthquake
Status
✓ Reviewed
Significance
172
Stations Used
5
Azimuthal Gap
235.0°
Min Station Distance
0.547°
RMS Residual
0.12 sec
Last Updated
2026-08-05 10:12:54 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 62 km NNW of Charlotte Amalie, U.S. Virgin Islands on August 5, 2026 at 09:18 UTC had a depth of 48.2 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.

Understanding This Data

Magnitude 3.3 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: pr71527613). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 5, 2026). M3.3 Earthquake 62 km NNW of Charlotte Amalie, U.S. Virgin IslandsAugust 5, 2026. Retrieved August 5, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr71527613/