Director [Principal Researcher]	Shigeaki Ono	Res DB	*
Deputy Director [Senior Researcher]	Takeshi Hanyu
[Principal Researcher(retired)]	Yoshihiko Tamura	Res DB
[Visiting Principal Researcher]	Yasuhiko Ohara	Res DB
[Guest Researcher]	Katsuyoshi Michibayashi
[Guest Researcher]	Tomoaki Morishita
[Guest Researcher]	Eichi Takazawa
[Guest Researcher]	Osamu Ishizuka

Geophysical Research Group

Group Leader [Senior Researcher]	Satoru Tanaka	Res DB
Deputy Group Leader[Senior Researcher]	Masaru Nakano	Res DB
[Senior Researcher]	Masayuki Obayashi	Res DB
[Researcher]	Aki Ito	Res DB
[Researcher]	Noriko Tada	Res DB
[Research Technician]	Junko Yoshimitsu	Res DB
[Technical Support Staff]	Tomoya Nakajima
[Research Student]	Autaijaratrasmee Tarudee
[External Researcher]	Yozo Hamano
[Guest Researcher]	Hiroshi Ichihara
[Guest Researcher]	Yoichi Usui

Data Science Research Group

Group Leader [Senior Researcher]	Tatsu Kuwatani	Res DB
[Senior Researcher]	Takatoshi Yanagisawa	Res DB
[Researcher]	Kenta Yoshida	Res DB
[Researcher]	Kenta Ueki	Res DB
[Researcher]	Yuya Akamatsu
[Visiting Principal Researcher]	Mitsuhiro Toriumi	Res DB
[External Researcher]	Ryosuke Oyanagi
[Guest Researcher]	Atsushi Nakao
[Guest Researcher]	Yuji Tasaka

Solid Earth Geochemistry Research Group

Group Leader  [Senior Researcher]	Takeshi Hanyu	Res DB
[Senior Researcher]	Qing Chang	Res DB
[Senior Researcher]	Takashi Miyazaki	Res DB
[Researcher]	Morihisa Hamada	Res DB
[Researcher]	Iona Mcintosh	Res DB
[Research Technician]	Vaglarov Bogdan Stefanov	Res DB
[Research Technician]	Tomoki Sato
[Postdoctoral Researcher]	Yuki Hagiwara
[Ability Staff]	Mika Mohamed
[Senior Researcher(retired)]	Maria Luisa Tejada	Res DB
[Study Support Part Timer]	Weihong Zhang
[Study Support Part Timer]	Hiroko Higuchi
[Research Assistant]	Katsutoshi Kugai
[Research Assistant]	Mitsuko Kanazawa
[External Researcher]	Erika Tanaka
[External Researcher]	Yuusuke Kuwahara
[External Researcher]	Kazutaka Yasukawa
[External Researcher]	Junichiro Ohta
[Guest Researcher]	Hikaru Iwamori	Res DB
[Research Student]	Sayaka Yoshimura