M6.0 earthquake - 230 km SW of Port McNeill, Canada

What happened

A magnitude 6 earthquake struck 230 km SW of Port McNeill, Canada on 5 Dec 1971, 05:50 UTC at a depth of 17 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.