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Significant earthquake

This summarises a recorded earthquake only; it is not a warning or a prediction. Follow AFAD and the competent authorities for official statements and guidance.

HALMAHERA, INDONESIA earthquake sequence

Active Gardner–Knopoff windows · 10.10.2026 02:55 – ongoing

Earthquakes
6
Largest
M4,0

Earthquakes of the sequence (oldest to newest)

Earthquakes per day

Earthquakes in the sequence

MagnitudeLocationTime (Europe/Istanbul)Depth
4.0 HALMAHERA, INDONESIA 10.10.2026 02:55 18,0 km
2.6 HALMAHERA, INDONESIA 10.10.2026 19:42 89,0 km
3.0 HALMAHERA, INDONESIA 19.10.2026 19:20 18,0 km
2.8 HALMAHERA, INDONESIA 26.10.2026 22:33 70,0 km
3.9 HALMAHERA, INDONESIA 28.10.2026 16:20 10,0 km
3.5 HALMAHERA, INDONESIA 07.11.2026 02:09 68,0 km

Sequences group earthquakes that have occurred by proximity in time and location (Gardner–Knopoff windows, Poisson rate test). Follow AFAD and Kandilli Observatory for official assessments. (Gardner & Knopoff (1974))