M6.0 earthquake near Montijo, Setúbal

What happened

A magnitude 6 earthquake struck 2 km SW of Alcochete, Portugal on 23 Apr 1909, 17:39 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.

The nearest town in our records is Montijo, about 4 km away in Setúbal, Portugal.