Earthquakes in Fiji — March 2025

18 earthquakes were recorded in Fiji during March 2025, an average of 0.6 per day.

18 reached magnitude 4 or above and 1 reached magnitude 5 or above. The average focal depth was 581 km.

The month's largest event in Fiji was a magnitude 5.0 earthquake near Levuka, Fiji on 20 March 2025 at 05:15 UTC. A magnitude 5.0 earthquake radiates roughly 477 tons of TNT equivalent in seismic energy.

That is close to the Fiji monthly average of 15 events over the period we cover, and up 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 17 in the magnitude 4 range, 1 in the magnitude 5 range.

Activity peaked on 23 March, when 2 events were recorded.

The month's largest events were M5.0 near Levuka, Fiji on 20 March at 560 km; M4.8 near Levuka, Fiji on 17 March at 577 km; M4.8 near Levuka, Fiji on 19 March at 549 km.

That is 24% above the 15 events Fiji averages per month across the 21 months on record.