Earthquakes in the Solomon Islands — September 2026

8 earthquakes were recorded in the Solomon Islands during September 2026, an average of 0.3 per day.

8 reached magnitude 4 or above and 2 reached magnitude 5 or above. The average focal depth was 66 km.

The month's largest event in the Solomon Islands was a magnitude 5.6 earthquake near Kirakira, Solomon Islands on 06 September 2026 at 04:05 UTC. A magnitude 5.6 earthquake radiates roughly 3,788 tons of TNT equivalent in seismic energy.

That is well above the the Solomon Islands monthly average of 6 events over the period we cover — an unusually active month, and level with the 8 recorded the previous month.

75% of events here are shallow (under 70 km), 25% intermediate (70–300 km) and 0% deep-focus (over 300 km). The mix is dominated by shallow crustal events, with a minority of intermediate-depth activity.

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

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

The month's largest events were M5.6 near Kirakira, Solomon Islands on 06 September at 39 km; M5.2 near Gizo, Solomon Islands on 14 September at 10 km; M4.9 near Lata, Solomon Islands on 20 September at 10 km.

That is 29% above the 6 events the Solomon Islands averages per month across the 23 months on record.