M6.5 earthquake near Rioja, San Martín Department

What happened

A magnitude 6.5 earthquake struck 4 km ENE of Rioja, Peru on 4 Apr 1991, 15:23 UTC at a depth of 21 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 Rioja, about 5 km away in San Martín Department, Peru.