Grosse Medianspalte (English spelling) GrosseMedianspalte

...A large fault that forms the boundary between the Inner Zone (northern side) and the Outer Zone (southern side) of Southwest Japan. It was named Grosse Medianspalte by E. Naumann (1893). This fault runs from near Yatsushiro in Kumamoto Prefecture, through the northern part of the Saganoseki Peninsula in Oita Prefecture, through the Yoshino River in Shikoku, crosses the Kii Peninsula along the Kino River, crosses from Ise to the Atsumi Peninsula, runs north-northeast along the west of the Akaishi Mountains to the Chubu region, and reaches the vicinity of Lake Suwa in Nagano Prefecture. It is then cut by the Itoi River-Shizuoka Tectonic Line and displaced northward, and its eastern extension has been traced to the Kanto region. ...

*Some of the terminology explanations that mention "Grosse Medianspalte" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…西南日本の内帯(北側)と外帯(南側)の境界をなす大断層。E.ナウマンがGrosse Medianspalteと命名(1893)したのにはじまる。この断層は熊本県八代（やつしろ）付近から大分県の佐賀関半島の北側をへて，四国の吉野川を通り，紀伊半島を紀ノ川に沿って横断し，伊勢から渥美半島に渡り，赤石山脈の西に沿って北北東に中部地方に向かい長野県諏訪湖付近に達して，その後は糸魚（いとい）川‐静岡構造線に切られて北方へ転位，東方延長は関東地方まで追跡される。…

※「Grosse Medianspalte」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報