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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.

NORTHERN SUMATRA, INDONESIA earthquake sequence

Active Gardner–Knopoff windows · 19.10.2026 16:46 – ongoing

Earthquakes
8
Largest
M4,3

Earthquakes of the sequence (oldest to newest)

Earthquakes per day

Earthquakes in the sequence

MagnitudeLocationTime (Europe/Istanbul)Depth
4.3 NORTHERN SUMATRA, INDONESIA 19.10.2026 16:46 70,0 km
2.9 NORTHERN SUMATRA, INDONESIA 19.10.2026 16:56 10,0 km
4.2 NORTHERN SUMATRA, INDONESIA 29.10.2026 21:58 10,0 km
3.5 NORTHERN SUMATRA, INDONESIA 31.10.2026 22:43 10,0 km
2.8 NORTHERN SUMATRA, INDONESIA 03.11.2026 08:42 10,0 km
3.7 NORTHERN SUMATRA, INDONESIA 06.11.2026 01:25 10,0 km
3.9 NORTHERN SUMATRA, INDONESIA 07.11.2026 04:59 10,0 km
3.7 NORTHERN SUMATRA, INDONESIA 11.11.2026 04:26 10,0 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))