Earthquakes in Fiji — October 2025

14 earthquakes were recorded in Fiji during October 2025, an average of 0.5 per day.

14 reached magnitude 4 or above and 0 reached magnitude 5 or above. The average focal depth was 576 km.

The month's largest event in Fiji was a magnitude 4.9 earthquake near Levuka, Fiji on 04 October 2025 at 18:50 UTC. A magnitude 4.9 earthquake radiates roughly 338 tons of TNT equivalent in seismic energy.

That is close to the Fiji monthly average of 15 events over the period we cover, and down from the 15 recorded the previous month.

0% of events here are shallow (under 70 km), 0% intermediate (70–300 km) and 100% 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 14 in the magnitude 4 range.

Activity peaked on 04 October, when 2 events were recorded.

The month's largest events were M4.9 near Levuka, Fiji on 04 October at 532 km; M4.8 near Levuka, Fiji on 29 October at 663 km; M4.6 near Levuka, Fiji on 27 October at 643 km.

That is close to the 15 events Fiji averages per month across the 21 months on record.