Introduction
Current Activities
Survey Vessels
Publications
Electronic Charts
Nautical Charts and Sailing Directions
Series of Astronomy and Geodesy
Research Reports
List of Aids to Navigation
How to Order ?
List of Charts and Publications
List of Agents
Oceanographic Information
Tsunami Simulation
Long Range HF Ocean Radar
HF Ocean Radar(Sagami Bay)
Quick Bulletin of Ocean Conditions
Coastal Oceanographic Realtime Information
Ice Information Center, Japan
Researches on Earthquakes & Volcanoes
Submarine Active Faults
Seafloor Topography of Plate Boundaries & Seismicity
Recent Surveys of Submarine Volcanoes