Director [Principal Researcher]	Takane Hori	rm	DB
Deputy Director [Senior Researcher]	Takashi Iinuma	rm
[Principal Researcher]	Narumi Takahashi	rm	DB
[Project Principal Researcher]	Katsuyoshi Kawaguchi	rm	DB
[Senior Engineer]	Kentaro Sueki
[Senior staff]	Kyohiko Mitsuzawa	rm
[Senior staff]	Ryoichi Iwase		DB

Research and Development Group for Seafloor Observatory

Group Leader [Principal Researcher]	Eiichiro Araki	rm	DB
Deputy Group Leader [Senior Engineer]	Takashi Yokobiki
[Senior Researcher]	Hiroyuki Matsumoto		DB
[Senior Researcher]	Yojiro Yamamoto	rm	DB
[Researcher]	Shuhei Nishida	rm	DB
[Researcher]	Yuya Machida	rm	DB
[Researcher]	Shuhei Tsuji	rm	DB
[Project Researcher]	Akiko Toh	rm	DB
[Senior Engineer]	Takeshi Katayama
[Senior Engineer]	Masayuki Suzuki

Earthquake and Tsunami Monitoring Group

Group Leader [Senior Researcher]	Keisuke Ariyoshi	rm	DB
Deputy Group Leader [Senior Researcher]	Kentaro Imai	rm	DB
[Researcher]	Yuchen Wang	rm	DB
[Engineer（Ⅱ）]	Daiki Hizen		DB
[Technical Support Staff]	Ryoko Obayashi
[Technical Support Staff]	Shuichiro Yada
[Research Assistant]	Satoshi Kusumoto		DB
[Research Assistant]	Tatsuhiko Tokuta
[Research Assistant]	Tomoya Kurihara
[Research Assistant]	Yuko Yui
[Guest Researcher]	Kazuyoshi Nanjo

Earthquake Forecasting Research Group

Group Leader [Senior Researcher]	Takeshi Iinuma	rm	DB	*
[Researcher]	Masayuki Kano	rm	DB
[Researcher]	Daisuke Sato	rm	DB
[Research Assistant]	Yoshihisa Hiyoshi
[Guest Researcher]	Motoyuki Kido
[Guest Researcher]	Akinori Hashima		DB
[External Researcher]	Ryoko Nakata		DB