M6.9 earthquake near Poronaysk, Sakhalin Oblast

What happened

A magnitude 6.9 earthquake struck 26 km WSW of Leonidovo, Russia on 15 Mar 1924, 10:31 UTC at a depth of 15 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 Poronaysk, about 42 km away in Sakhalin Oblast, Russia.