東南 とうなん かい地震 じしんじゃありませんでした
tōnankaiji shinja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 東南海地震

1. Was not the Nankai Trough earthquake.; It wasn't the Nankai Trough earthquake.

Past/Perfective
Negative
Polite
Terminal Form