Mezue ahịrịokwu na-esonụ: Ala ọma jijiji, ala ọma jijiji na ugwu na-agbọpụta ọkụ na-emekarị na Japan n'ihi na ọ dị n'akụkụ Oké Osimiri Pacific. Ọ nwere ihe ọghọm ọdachi nke 17 kachasị dị ka atụpụtara na 2016 World Risk Index. Japan nwere ugwu mgbawa 111. Ala ọma jijiji ndị na-ebibi ihe, bụ́ ndị na-akpatakarị oké ebili mmiri, na-eme ọtụtụ ugboro n'ime otu narị afọ ọ bụla; ala ọma jijiji ahụ mere na Tokyo na 1923 gburu ihe karịrị mmadụ 140,000. Nnukwu ala ọma jijiji ndị mere n'oge na-adịbeghị anya bụ Oké Ala Ọma Jijiji nke Hanshin nke afọ 1995 na
Ala ọma jijiji nke 2011 Tōhoku, nke mere ka nnukwu ala ọma jijiji nke oké osimiri mee.