Earthquakes in Chile — September 2026

34 earthquakes were recorded in Chile during September 2026, an average of 1.1 per day.

31 reached magnitude 4 or above and 4 reached magnitude 5 or above. The average focal depth was 85 km.

The month's largest event in Chile was a magnitude 5.2 earthquake near Mejillones, Chile on 21 September 2026 at 11:48 UTC. A magnitude 5.2 earthquake radiates roughly 951 tons of TNT equivalent in seismic energy.

That is close to the Chile monthly average of 33 events over the period we cover, and up from the 21 recorded the previous month.

41% of events here are shallow (under 70 km), 59% intermediate (70–300 km) and 0% 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.

By band, the catalogue holds 1 in the magnitude 2 range, 2 in the magnitude 3 range, 27 in the magnitude 4 range, 4 in the magnitude 5 range.

Activity peaked on 21 September, when 3 events were recorded.

The month's largest events were M5.2 near Mejillones, Chile on 21 September at 10 km; M5.2 near Villa Presidente Frei, Chile on 18 September at 100 km; M5.2 near San Antonio, Chile on 25 September at 29 km.

That is close to the 33 events Chile averages per month across the 23 months on record.