Earthquakes in Chile — September 2025

35 earthquakes were recorded in Chile during September 2025, an average of 1.2 per day.

33 reached magnitude 4 or above and 4 reached magnitude 5 or above. The average focal depth was 83 km.

The month's largest event in Chile was a magnitude 5.5 earthquake near La Tirana, Chile on 19 September 2025 at 04:55 UTC. A magnitude 5.5 earthquake radiates roughly 2,682 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 34 recorded the previous month.

40% of events here are shallow (under 70 km), 60% 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 3 range, 29 in the magnitude 4 range, 4 in the magnitude 5 range.

Activity peaked on 24 September, when 4 events were recorded.

The month's largest events were M5.5 near La Tirana, Chile on 19 September at 94 km; M5.3 near Camiña, Chile on 25 September at 107 km; M5.2 near Corral, Chile on 23 September at 10 km.

That is close to the 33 events Chile averages per month across the 21 months on record.