Earthquakes in the Solomon Islands — October 2025

7 earthquakes were recorded in the Solomon Islands during October 2025, an average of 0.2 per day.

7 reached magnitude 4 or above and 3 reached magnitude 5 or above. The average focal depth was 94 km.

The month's largest event in the Solomon Islands was a magnitude 6.0 earthquake near Lata, Solomon Islands on 25 October 2025 at 23:28 UTC. A magnitude 6.0 earthquake radiates roughly 15,080 tons of TNT equivalent in seismic energy.

That is close to the the Solomon Islands monthly average of 6 events over the period we cover, and up from the 6 recorded the previous month.

29% of events here are shallow (under 70 km), 71% intermediate (70–300 km) and 0% deep-focus (over 300 km). A substantial share of intermediate-depth events points to a subducting slab beneath the region rather than purely crustal faulting.

By band, the catalogue holds 4 in the magnitude 4 range, 2 in the magnitude 5 range, 1 in the magnitude 6 range.

Activity peaked on 25 October, when 2 events were recorded.

The month's largest events were M6.0 near Lata, Solomon Islands on 25 October at 54 km; M5.3 near Kirakira, Solomon Islands on 19 October at 98 km; M5.2 near Kirakira, Solomon Islands on 23 October at 60 km.

That is 12% above the 6 events the Solomon Islands averages per month across the 21 months on record.