M6.9 earthquake near Teluk Dalam, North Sumatra

What happened

A magnitude 6.9 earthquake struck 181 km SW of Sibolga, Indonesia on 4 Dec 1974, 03:07 UTC at a depth of 20 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 Teluk Dalam, about 20 km away in North Sumatra, Indonesia.