Earthquakes in Indonesia — Page 14

Indonesia is among the most consistently active regions in this catalogue, logging 159 events in the past 30 days alone, and 351 of the events on record reached magnitude 5 or above — the level at which damage becomes a genuine concern for vulnerable construction. Indonesia sits on the Pacific Ring of Fire, and the depth distribution below shows the subducting slab beneath it directly.

1,531 earthquakes have been recorded in Indonesia in our catalogue, 159 of them in the past 30 days.

The average magnitude is 4.7 and the average focal depth 75 km. 1529 events reached magnitude 4 or above and 351 reached magnitude 5 or above.

The strongest earthquake recorded in Indonesia in this period was a magnitude 7.8 event near Ternate, Indonesia on 01 April 2026, at a depth of 10 km. A magnitude 7.8 earthquake radiates roughly 7.6 million tons of TNT equivalent in seismic energy.

Locations recording the most events include Tobelo (157), Tual (100), Abepura (93), Ruteng (89), Ternate (84).

69% of events here are shallow (under 70 km), 26% 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.

The deepest event on record here was a magnitude 4.3 earthquake at 621 km beneath Baubau, Indonesia on 19 July 2025.

By band, the catalogue holds 2 in the magnitude 3 range, 1178 in the magnitude 4 range, 324 in the magnitude 5 range, 24 in the magnitude 6 range, 3 in the magnitude 7 range.

The busiest single day was 02 April 2026, with 40 recorded events.

7 of these events carry a USGS link to NOAA tsunami information. That link flag does not mean a tsunami occurred or that a warning was issued.