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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.

79 km W of San Antonio de los Cobres, Argentina earthquake sequence

Active Gardner–Knopoff windows · 19.10.2026 10:33 – ongoing

Earthquakes
4
Largest
M4,4
Mainshock
M4,5 · 79 km W of San Antonio de los Cobres, Argentina · 19.10.2026 10:33

Earthquakes of the sequence (oldest to newest)

Earthquakes per day

Earthquakes in the sequence

MagnitudeLocationTime (Europe/Istanbul)Depth
4.5 79 km W of San Antonio de los Cobres, Argentina 19.10.2026 10:33 170,3 km
3.4 ANTOFAGASTA, CHILE 19.10.2026 12:20 232,7 km
3.0 SALTA, ARGENTINA 19.10.2026 21:03 207,4 km
2.9 ANTOFAGASTA, CHILE 20.10.2026 08:52 222,1 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))