Earthquakes in Indonesia — April 2025

69 earthquakes were recorded in Indonesia during April 2025, an average of 2.3 per day.

69 reached magnitude 4 or above and 11 reached magnitude 5 or above. The average focal depth was 83 km.

The month's largest event in Indonesia was a magnitude 5.9 earthquake near Tobelo, Indonesia on 02 April 2025 at 21:03 UTC. A magnitude 5.9 earthquake radiates roughly 10,676 tons of TNT equivalent in seismic energy.

That is close to the Indonesia monthly average of 70 events over the period we cover, and down from the 93 recorded the previous month.

62% of events here are shallow (under 70 km), 33% intermediate (70–300 km) and 4% 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 58 in the magnitude 4 range, 11 in the magnitude 5 range.

Activity peaked on 30 April, when 6 events were recorded.

The month's largest events were M5.9 near Tobelo, Indonesia on 02 April at 37 km; M5.8 near Sinabang, Indonesia on 07 April at 18 km; M5.7 near Banjar, Indonesia on 22 April at 35 km.

That is close to the 70 events Indonesia averages per month across the 21 months on record.