Earthquakes in Vanuatu — April 2025

11 earthquakes were recorded in Vanuatu during April 2025, an average of 0.4 per day.

11 reached magnitude 4 or above and 2 reached magnitude 5 or above. The average focal depth was 172 km.

The month's largest event in Vanuatu was a magnitude 5.7 earthquake near Sola, Vanuatu on 22 April 2025 at 16:55 UTC. A magnitude 5.7 earthquake radiates roughly 5,351 tons of TNT equivalent in seismic energy.

That is close to the Vanuatu monthly average of 13 events over the period we cover, and up from the 9 recorded the previous month.

27% of events here are shallow (under 70 km), 64% intermediate (70–300 km) and 9% deep-focus (over 300 km). That proportion of deep-focus events is the signature of a subduction zone: only a cold slab descending into the mantle stays brittle enough to rupture at those depths.

By band, the catalogue holds 9 in the magnitude 4 range, 2 in the magnitude 5 range.

Activity peaked on 20 April, when 2 events were recorded.

The month's largest events were M5.7 near Sola, Vanuatu on 22 April at 200 km; M5.3 near Sola, Vanuatu on 29 April at 81 km; M4.9 near Port-Vila, Vanuatu on 03 April at 34 km.

That is 12% below the 13 events Vanuatu averages per month across the 21 months on record.