List of geological units in prefectures of Japan

Stratigraphic units, igneous bodies, and geological structures reportd from each prefecture of Japan

Hokkaido region: Hokkaido
Tohoku region: Aomori prefecture; Akita prefecture; Iwate prefecture; Miyagi prefecture; Yamagata prefecture; Fukushima prefecture
Koshinetsu region: Niigata prefecture; Nagano prefecture; Yamanashi prefecture; Toyama prefecture; Ishikawa prefecture; Fukui prefecture
Kanto region: Gunma prefecture; Tochigi prefecture; Ibaraki prefecture; Saitama prefecture; Tokyo metropolis; Chiba prefecture; Kanagawa prefecture
Tokai region: Shizuoka prefecture; Aichi prefecture; Gifu prefecture; Mie prefecture
Kinki region: Shiga prefecture; Kyoto prefecture; Hyogo prefecture; Osaka prefecture; Nara prefecture; Wakayama prefecture
Chugoku region: Okayama prefecture; Hiroshima prefecture; Tottori prefecture; Shimane prefecture; Yamaguchi prefecture
Shikoku region: Kagawa prefecture; Tokushima prefecture; Ehime prefecture; Kochi prefecture
Kyushu region: Oita prefecture; Fukuoka prefecture; Saga prefecture; Nagasaki prefecture; Kumamoto prefecture; Miyazaki prefecture; Kagoshima prefecture
Okinawa region: Okinawa prefecture