Between Sakhalin and the coastline of the Japanese archipelago, there is a band of areas where the magnitude 7 class earthquakes frequently occur that is referred to as the Japan Sea Eastern Margin Mobile Belt.
サハリンから日本列島沿岸に沿って海嶺やマグニチュード7クラスの地震の多発域が帯状に連なっており、これを日本海東縁変動帯と呼ぶ。