中ちゅう央おう構こう造ぞう線せん

noun

Median Tectonic Line

A major geological fault line in Japan, often abbreviated as MTL. Used in academic and news contexts.

• 中ちゅう央おう構こう造ぞう線せんは、西せい南なん日本にほんを縦じゅう断だんする大だい断だん層そうです。

  The Median Tectonic Line is a major fault that runs longitudinally through southwestern Japan.