M6.6 earthquake - 176 km WSW of Port McNeill, Canada

What happened

A magnitude 6.6 earthquake struck 176 km WSW of Port McNeill, Canada on 23 Jul 1972, 19:13 UTC at a depth of 10 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.