M4.6 earthquake - 216 km NW of Kuril’sk, Russia

What happened

A magnitude 4.6 earthquake struck 216 km NW of Kuril’sk, Russia on 20 Sept 2023, 22:17 UTC at a depth of 348 km.

Earthquakes of this size are classed as Light. Widely felt nearby; objects may shake or fall. Significant damage is unusual. This was a deep earthquake; shaking at the surface is usually weak for its size.

The nearest town in our records is Korsakov, about 262 km away in Sakhalin Oblast, Russia.