Earthquakes in Tonga — February 2025
20 earthquakes were recorded in Tonga during February 2025, an average of 0.7 per day.
20 reached magnitude 4 or above and 9 reached magnitude 5 or above. The average focal depth was 157 km.
The month's largest event in Tonga was a magnitude 5.6 earthquake near Hihifo, Tonga on 20 February 2025 at 10:31 UTC. A magnitude 5.6 earthquake radiates roughly 3,788 tons of TNT equivalent in seismic energy.
That is close to the Tonga monthly average of 18 events over the period we cover, and up from the 14 recorded the previous month.
45% of events here are shallow (under 70 km), 30% intermediate (70–300 km) and 25% 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 11 in the magnitude 4 range, 9 in the magnitude 5 range.
Activity peaked on 16 February, when 3 events were recorded.
The month's largest events were M5.6 near Hihifo, Tonga on 20 February at 103 km; M5.5 near Hihifo, Tonga on 20 February at 98 km; M5.1 near ‘Ohonua, Tonga on 18 February at 10 km.
That is close to the 18 events Tonga averages per month across the 21 months on record.
Largest earthquakes in Tonga, February 2025
20 events listed below, newest first. Times are UTC. Click any column header to re-sort.
Frequently asked questions
How many earthquakes hit Tonga in February 2025?
20 earthquakes were recorded in Tonga during February 2025, of which 20 were magnitude 4 or above.
What was the biggest earthquake in Tonga in February 2025?
A magnitude 5.6 event near Hihifo, Tonga on 20 February 2025.
Other months in Tonga
Magnitudes for February 2025 reflect the current USGS review status and may have been revised since first publication. See our guides on the magnitude scale, focal depth and why earthquakes cluster.