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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.

Unusual activity cluster

Closed Poisson rate test · 16.10.2026 13:30 – 18.10.2026 21:10

Seismic activity above normal levels has been observed.

Earthquakes
3
Largest
M2,2

Earthquakes of the sequence (oldest to newest)

Earthquakes per day

Earthquakes in the sequence

MagnitudeLocationTime (Europe/Istanbul)Depth
2.2 PUERTO RICO 18.10.2026 11:44 7,6 km
2.1 PUERTO RICO REGION 18.10.2026 13:08 13,9 km
2.2 PUERTO RICO REGION 18.10.2026 14:09 14,0 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.