Kammala jumlar da ke gaba: Kasar Japan tana cikin abin da ake kira Ring of Fire, ba wai kawai tana da wutar wuta ba, amma kuma tana daya daga cikin yankunan da girgizar kasa ta fi yawa a duniya. Girgizar kasa mafi girma tana faruwa ne a yankunan da ke gabashin gabar tekun Japan. Girgizar kasa mai karfin megathrust 9.1 a cikin jirgin ruwa mai saukar ungulu
Kogin Tōhoku a watan Maris na 2011 wanda ya haifar da mummunar tsunami ya kasance sakamakon fashewa a kan haɗin haɗin megathrust.