なんかいきょだいじしん 南海トラフ巨大地震 LinksSentence search for 南海トラフ巨大地震Sentence search for なんかいトラフきょだいじしんKanji details for 南, 海, 巨, 大, 地 and 震Edit in JMdict Noun1. Nankai megathrust earthquake Discussions Log in to talk about this word.