M6.6 earthquake - Reykjanes Ridge

What happened

A magnitude 6.6 earthquake struck Reykjanes Ridge on 30 Sept 1923, 01:20 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.