Earthquakes in the Solomon Islands — September 2025
6 earthquakes were recorded in the Solomon Islands during September 2025, an average of 0.2 per day.
6 reached magnitude 4 or above and 5 reached magnitude 5 or above. The average focal depth was 41 km.
The month's largest event in the Solomon Islands was a magnitude 5.2 earthquake near Lata, Solomon Islands on 28 September 2025 at 18:41 UTC. A magnitude 5.2 earthquake radiates roughly 951 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 level with the 6 recorded the previous month.
67% of events here are shallow (under 70 km), 33% 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 1 in the magnitude 4 range, 5 in the magnitude 5 range.
Activity peaked on 03 September, when 2 events were recorded.
The month's largest events were M5.2 near Lata, Solomon Islands on 28 September at 77 km; M5.1 near Gizo, Solomon Islands on 25 September at 10 km; M5.1 near Lata, Solomon Islands on 12 September at 35 km.
That is close to the 6 events the Solomon Islands averages per month across the 21 months on record.
Largest earthquakes in the Solomon Islands, September 2025
6 events listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 5.2 | Lata, Solomon Islands | 77.0 | Solomon Islands | View details View | |
| 5.1 | Gizo, Solomon Islands | 10.0 | Solomon Islands | View details View | |
| 5.1 | Lata, Solomon Islands | 35.0 | Solomon Islands | View details View | |
| 5.0 | Gizo, Solomon Islands | 10.0 | Solomon Islands | View details View | |
| 5.0 | Lata, Solomon Islands | 10.0 | Solomon Islands | View details View | |
| 4.6 | Lata, Solomon Islands | 103.6 | Solomon Islands | View details View |
Frequently asked questions
How many earthquakes hit the Solomon Islands in September 2025?
6 earthquakes were recorded in the Solomon Islands during September 2025, of which 6 were magnitude 4 or above.
What was the biggest earthquake in the Solomon Islands in September 2025?
A magnitude 5.2 event near Lata, Solomon Islands on 28 September 2025.
Other months in the Solomon Islands
Magnitudes for September 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.