M6.4 earthquake - southwest of Sumatra, Indonesia

What happened

A magnitude 6.4 earthquake struck southwest of Sumatra, Indonesia on 26 Jun 1971, 19:27 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.