Earthquakes in Peru — September 2025

15 earthquakes were recorded in Peru during September 2025, an average of 0.5 per day.

15 reached magnitude 4 or above and 4 reached magnitude 5 or above. The average focal depth was 89 km.

The month's largest event in Peru was a magnitude 5.5 earthquake near San Juan, Peru on 23 September 2025 at 17:39 UTC. A magnitude 5.5 earthquake radiates roughly 2,682 tons of TNT equivalent in seismic energy.

That is close to the Peru monthly average of 13 events over the period we cover, and up from the 11 recorded the previous month.

47% of events here are shallow (under 70 km), 53% 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 11 in the magnitude 4 range, 4 in the magnitude 5 range.

Activity peaked on 22 September, when 3 events were recorded.

The month's largest events were M5.5 near San Juan, Peru on 23 September at 9 km; M5.1 near San Juan, Peru on 22 September at 32 km; M5.1 near Sechura, Peru on 16 September at 10 km.

That is 18% above the 13 events Peru averages per month across the 21 months on record.