M6.3 earthquake - Sea of Okhotsk

What happened

A magnitude 6.3 earthquake struck Sea of Okhotsk on 20 Apr 1984, 06:31 UTC at a depth of 582 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.