Marine Gazetteer Placedetails

Status Proposed standard Proposed standard
Language Name Name source
EnglishXiannan SeamountIHO-IOC GEBCO Gazetteer of Undersea Feature Names   
PlaceType Seamount(s) 
Latitude 15° 56' 23.1" N (15.93975°)  
Longitude 116° 46' 57.7" E (116.78269°)  
Min. Lat 15° 44' 44.5" N (15.7457°)  
Min. Long 116° 36' 28.9" E (116.608°)  
Max. Lat 16° 9' 52.3" N (16.1645°)  
Max. Long 116° 58' 17.3" E (116.9715°)  
Source IHO-IOC GEBCO Gazetteer of Undersea Feature Names, available online at
Notes Additional information (en): This feature has an irregular shape. Minimum depth (m): 1544. Maximum depth (m): 4600. Total relief (m): 3056. Dimension/size: 51 km × 24 km.    
GEBCO: associated meeting, proposer and year of proposal (en): Associated meeting: SCUFN-34.3. Proposer: China Geological Survey. History: 2021.     
GEBCO: discoverer and year of discovery (en): Discoverer: Chinese research vessel "Haiyangdizhi Sihao". Year of discovery: 1984. History: Named from its geographical location, South of Xianfa Shoal (Xianfa Ansha, in Chinese). "Nan" means South in Chinese. Xianfa Ansha was thus named by the China Committee on Geographical Names in 1986.    
Part of  South China Sea (IHO Sea Area)  [view hierarchy]   
Edit history Last edited on 2023-07-26 16:22:28 by Lonneville Britt
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