Earthquakes in Russia — May 2025

23 earthquakes were recorded in Russia during May 2025, an average of 0.7 per day.

23 reached magnitude 4 or above and 5 reached magnitude 5 or above. The average focal depth was 106 km.

The month's largest event in Russia was a magnitude 5.4 earthquake near Shikotan, Russia on 29 May 2025 at 22:23 UTC. A magnitude 5.4 earthquake radiates roughly 1,898 tons of TNT equivalent in seismic energy.

That is below the Russia monthly average of 90 events over the period we cover — a comparatively quiet month, and up from the 12 recorded the previous month.

61% of events here are shallow (under 70 km), 26% intermediate (70–300 km) and 13% deep-focus (over 300 km). That proportion of deep-focus events is the signature of a subduction zone: only a cold slab descending into the mantle stays brittle enough to rupture at those depths.

By band, the catalogue holds 18 in the magnitude 4 range, 5 in the magnitude 5 range.

Activity peaked on 11 May, when 4 events were recorded.

2 event(s) this month carry a USGS link to NOAA tsunami information; the flag does not indicate whether a tsunami occurred.

The month's largest events were M5.4 near Shikotan, Russia on 29 May at 101 km; M5.3 near Beringovskiy, Russia on 11 May at 28 km; M5.3 near Beringovskiy, Russia on 11 May at 10 km.

That is 74% below the 90 events Russia averages per month across the 21 months on record.