Earthquakes in the U.S. Virgin Islands — June 2026

53 earthquakes were recorded in the U.S. Virgin Islands during June 2026, an average of 1.8 per day.

2 reached magnitude 4 or above and 0 reached magnitude 5 or above. The average focal depth was 29 km.

The month's largest event in the U.S. Virgin Islands was a magnitude 4.1 earthquake near Cruz Bay, U.S. Virgin Islands on 18 June 2026 at 08:32 UTC. A magnitude 4.1 earthquake radiates roughly 19 tons of TNT equivalent in seismic energy.

That is well above the the U.S. Virgin Islands monthly average of 39 events over the period we cover — an unusually active month, and down from the 60 recorded the previous month.

98% of events here are shallow (under 70 km), 2% 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 1 in the magnitude 1 range, 10 in the magnitude 2 range, 40 in the magnitude 3 range, 2 in the magnitude 4 range.

Activity peaked on 18 June, when 7 events were recorded.

The month's largest events were M4.1 near Cruz Bay, U.S. Virgin Islands on 18 June at 52 km; M4.0 near Christiansted, U.S. Virgin Islands on 11 June at 126 km; M3.9 near Cruz Bay, U.S. Virgin Islands on 21 June at 24 km.

That is 35% above the 39 events the U.S. Virgin Islands averages per month across the 21 months on record.