M6.1 earthquake - Bonin Islands, Japan region

What happened

A magnitude 6.1 earthquake struck Bonin Islands, Japan region on 15 Mar 1940, 05:28 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.