M6.5 earthquake - 263 km NNW of Kuril’sk, Russia

What happened

A magnitude 6.5 earthquake struck 263 km NNW of Kuril’sk, Russia on 23 Apr 1984, 21:40 UTC at a depth of 414 km.

Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was a deep earthquake; shaking at the surface is usually weak for its size.