Earthquakes in the U.S. Virgin Islands — March 2025

27 earthquakes were recorded in the U.S. Virgin Islands during March 2025, an average of 0.9 per day.

1 reached magnitude 4 or above and 0 reached magnitude 5 or above. The average focal depth was 27 km.

The month's largest event in the U.S. Virgin Islands was a magnitude 4.3 earthquake near Charlotte Amalie, U.S. Virgin Islands on 02 March 2025 at 00:36 UTC. A magnitude 4.3 earthquake radiates roughly 43 tons of TNT equivalent in seismic energy.

That is below the the U.S. Virgin Islands monthly average of 39 events over the period we cover — a comparatively quiet month, and up from the 10 recorded the previous month.

96% of events here are shallow (under 70 km), 4% intermediate (70–300 km) and 0% deep-focus (over 300 km). Almost everything here is crustal. That is characteristic of transform faulting or continental deformation rather than subduction — and it means shaking at the surface is strong for the magnitudes involved.

By band, the catalogue holds 3 in the magnitude 2 range, 23 in the magnitude 3 range, 1 in the magnitude 4 range.

Activity peaked on 18 March, when 5 events were recorded.

The month's largest events were M4.3 near Charlotte Amalie, U.S. Virgin Islands on 02 March at 33 km; M4.0 near Charlotte Amalie, U.S. Virgin Islands on 02 March at 44 km; M4.0 near Cruz Bay, U.S. Virgin Islands on 21 March at 8 km.

That is 31% below the 39 events the U.S. Virgin Islands averages per month across the 21 months on record.