Hydrographic Department, Maritime Safety Agency, Ministry of Transport, Tokyo, Japan
Periodical observations of discolored waters and the thermal distribution at
submarine volcanoes and around volcanic islands along the Nanpo Syoto
(Izu-Ogasawara islands) and Nansei Syoto (Ryukyu Islands) by aircraft.
Bathymetric, geological structural, geomagnetic and gravity surveys of the
submarine volcanoes and the volcanic islands.
Contact information:
Hydrographic Department
Maritime Safety Agency
Ministry of Transport
Tsukiji 5-3-1, Chuo-Ku, Tokyo 104
Japan
Telephone: (81) 3-3541-3811
Telefax: (81) 3-3541-0723
Contact: Dr Y. Ganeko
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