Earthquakes in Indonesia — October 2026
2 earthquakes were recorded in Indonesia during October 2026, an average of 0.1 per day.
2 reached magnitude 4 or above and 0 reached magnitude 5 or above. The average focal depth was 106 km.
The month's largest event in Indonesia was a magnitude 4.6 earthquake near Luwuk, Indonesia on 01 October 2026 at 01:31 UTC. A magnitude 4.6 earthquake radiates roughly 120 tons of TNT equivalent in seismic energy.
That is below the Indonesia monthly average of 68 events over the period we cover — a comparatively quiet month, and down from the 75 recorded the previous month.
0% of events here are shallow (under 70 km), 100% 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 2 in the magnitude 4 range.
Activity peaked on 01 October, when 2 events were recorded.
The month's largest events were M4.6 near Luwuk, Indonesia on 01 October at 116 km; M4.5 near Tual, Indonesia on 01 October at 95 km.
That is 97% below the 68 events Indonesia averages per month across the 23 months on record.
Largest earthquakes in Indonesia, October 2026
2 events listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 4.6 | Luwuk, Indonesia | 116.4 | Indonesia | View details View | |
| 4.5 | Tual, Indonesia | 94.8 | Indonesia | View details View |
Frequently asked questions
How many earthquakes hit Indonesia in October 2026?
2 earthquakes were recorded in Indonesia during October 2026, of which 2 were magnitude 4 or above.
What was the biggest earthquake in Indonesia in October 2026?
A magnitude 4.6 event near Luwuk, Indonesia on 01 October 2026.
Other months in Indonesia
Magnitudes for October 2026 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.