M6.6 earthquake - Nicobar Islands, India region

What happened

A magnitude 6.6 earthquake struck Nicobar Islands, India region on 7 Apr 1973, 03:00 UTC at a depth of 33 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.