M6.1 earthquake - 236 km E of Kuril’sk, Russia

What happened

A magnitude 6.1 earthquake struck 236 km E of Kuril’sk, Russia on 23 Aug 1971, 21:55 UTC at a depth of 39 km.

Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was a shallow earthquake, which tends to be felt more strongly at the surface.