Mezue ahịrịokwu na-esonụ: Ugwu na ugwu mgbawa, Honshu na-enwekarị ala ọma jijiji (ala ọma jijiji nke Great Kantō mebiri Tokyo nke ukwuu na Septemba 1923, na
ala ọma jijiji nke March 2011 kpaliri akụkụ ugwu ọwụwa anyanwụ nke agwaetiti ahụ site n'ọtụtụ dịgasị iche iche nke ukwuu ka ọ na-akpata tsunami na-ebibi ihe). Ugwu kachasị elu bụ ugwu ọkụ ọkụ na-arụ ọrụ bụ Ugwu Fuji na, nke na-eme Honshu agwaetiti nke asaa kachasị elu n'ụwa. E nwere ọtụtụ osimiri, gụnyere Osimiri Shinano, nke kasị ogologo na Japan. Ugwu Alps nke Japan dị n'obosara nke Honshu, site n'ụsọ oké osimiri nke 'Oké Osimiri Japan' ruo n'ụsọ oké osimiri Pacific. Ọnọdụ ihu igwe na-adịkarị iru mmiri na mpaghara okpomọkụ n'ebe ọdịda anyanwụ Japan na iru mmiri na mpaghara ugwu.