M6.6 earthquake near Olhão, Faro

What happened

A magnitude 6.6 earthquake struck 91 km SSE of Olhão, Portugal on 15 Mar 1964, 22:30 UTC at a depth of 29 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.

The nearest town in our records is Olhão, about 92 km away in Faro, Portugal.