南海 なんかいトラフ巨大 きょだい地震 じしんなら
nankaitorafu kyodai jishinnara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of 南海トラフ巨大地震

1. If/when the Nankai Trough mega-earthquake occurs; In the event of a Nankai Trough mega-earthquake

Nara Conditional