Marine Gazetteer Placedetails

Status Proposed standard Proposed standard
Language Name Name source
EnglishRukan RidgeIHO-IOC GEBCO Gazetteer of Undersea Feature Names (2018-06-25 - current version)   
PlaceType Ridge 
Latitude 23° 49' 59.5" N (23.83319°)  
Longitude 126° 58' 14.1" E (126.97059°)  
Min. Lat 23° 41' 4.3" N (23.6845°)  
Min. Long 126° 51' 34.2" E (126.8595°)  
Max. Lat 23° 59' 41" N (23.9947°)  
Max. Long 127° 4' 26.4" E (127.074°)  
Source IHO-IOC GEBCO Gazetteer of Undersea Feature Names (2018-06-25 - current version), available online at
Notes GEBCO: discoverer and year of discovery: Discoverer: Japanese survey vessel "Takuyo". Year of discovery: 1996. History: Named from the nearby Rukan Reef, which is located between the Tokashiki Islands and Okinawa, the largest island of the Nansei-shoto Islands (also known as the Ryukyu Islands).    
GEBCO: associated meeting, proposer and year of proposal: Associated meeting: SCUFN-30. Proposer: Japanese Committee on Undersea Feature Names (JCUFN). History: 2017.    
Additional information: This feature has an elongated shape and a steepness of ~ 12 %. Minimum depth (m): 5070. Maximum depth (m): 6787. Total relief (m): 1717. Dimension: 20 km × 30 km    
Part of  Philippine Sea (IHO Sea Area)  [view hierarchy]   
Edit history Last edited on 2018-09-13 16:53:11 by Lonneville Britt
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