Profile

The JGS is a scientific organization with over 4000 members, including researchers, educators, and engineering technicians. Members belong to one of seven branches: Hokkaido, Tohoku, Kanto, Chubu, Kinki, Shikoku, and Nishinihon.
The JGS includes 15 specialized groups:

Petrology
Stratigraphy
Quaternary geology
Marine geology
Information geology
Structural geology
Paleontology
Environmental geology
Sedimentary geology
Present-day geological processes
Engineering geology
Volcanology
Regional geology
Environmental change in deep time
History of the Earth