Earthquakes in Indonesia — January 2025

12 earthquakes were recorded in Indonesia during January 2025, an average of 0.4 per day.

12 reached magnitude 4 or above and 3 reached magnitude 5 or above. The average focal depth was 83 km.

The month's largest event in Indonesia was a magnitude 5.1 earthquake near Sarmi, Indonesia on 13 January 2025 at 12:54 UTC. A magnitude 5.1 earthquake radiates roughly 674 tons of TNT equivalent in seismic energy.

That is close to the Indonesia monthly average of 12 events over the period we cover, and down from the 45 recorded the previous month.

58% of events here are shallow (under 70 km), 42% 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 9 in the magnitude 4 range, 3 in the magnitude 5 range.

Activity peaked on 13 January, when 3 events were recorded.

The month's largest events were M5.1 near Sarmi, Indonesia on 13 January at 34 km; M5.0 near Manggarai, Indonesia on 07 January at 10 km; M5.0 near Maluku, Indonesia on 13 January at 132 km.

That is close to the 12 events Indonesia averages per month across the 2 months on record.