Earthquakes in Russia — October 2025

108 earthquakes were recorded in Russia during October 2025, an average of 3.5 per day.

108 reached magnitude 4 or above and 28 reached magnitude 5 or above. The average focal depth was 49 km.

The month's largest event in Russia was a magnitude 6.1 earthquake near Vilyuchinsk, Russia on 03 October 2025 at 16:07 UTC. A magnitude 6.1 earthquake radiates roughly 21,301 tons of TNT equivalent in seismic energy.

That is close to the Russia monthly average of 90 events over the period we cover, and down from the 263 recorded the previous month.

82% of events here are shallow (under 70 km), 16% intermediate (70–300 km) and 2% deep-focus (over 300 km). The mix is dominated by shallow crustal events, with a minority of intermediate-depth activity.

By band, the catalogue holds 80 in the magnitude 4 range, 26 in the magnitude 5 range, 2 in the magnitude 6 range.

Activity peaked on 03 October, when 14 events were recorded.

The month's largest events were M6.1 near Vilyuchinsk, Russia on 03 October at 19 km; M6.0 near Ozernovskiy, Russia on 09 October at 57 km; M5.8 near Severo-Kuril’sk, Russia on 11 October at 76 km.

That is 20% above the 90 events Russia averages per month across the 21 months on record.