Macclesfield Bank is an elongated sunken atoll of underwater reefs and shoals in the South China Sea. It lies east of the Paracel Islands, southwest of the Pratas Islands and north of the Spratly Islands. Its length exceeds southwest-northeast, with a maximal width of more than. With an ocean area of within the outer rim of the reef, although completely submerged without any emergent cays or islets, it is one of the largest atolls of the world. The Macclesfield Bank is part of what Chinacalls the Zhongsha Islands, which includes a number of geographically separate submarine features, and also refers to a county-level administrative division.
History
Macclesfield banks were named after the British naval ship, HMS Macclesfield, which ran aground in the vicinity of these shoals in 1804.
Geography
The brokencoral reef rim of Macclesfield Bank, with a width of up to, has depths of at Pygmy Shoal on the northeast end of the bank and depths of 11.6 to elsewhere. Within the lagoon, Walker Shoal marks the least known depth of. In general, the central lagoon is very deep, with depths up to. The elongated atoll consists of the following shoals, clockwise starting in the northeast, and at the end the six named shoals in the lagoon:
English Name
Romanized Name
Chinese Name
Coordinates
least depth
Pigmy Shoal
Biwei Ansha
比微暗沙
7
Engeria Bank
Yinji Tan
隱磯灘
10
Howard Shoal
Wuyong Ansha
武勇暗沙
10
Learmonth Shoal
Jimeng Ansha
濟猛暗沙
9
Plover Shoal
Haijiu Ansha
海鳩暗沙
10
Addington Patch
Anding Lianjiao
安定連礁
10
Smith Shoal
Meixi Ansha
美溪暗沙
9
Bassett Shoal
Bude Ansha
布德暗沙
9
Balfour Shoal
Bofu Ansha
波洑暗沙 or 伏洑暗沙
8
Parry Shoal
Paibo Ansha
排波暗沙
8
Cawston Shoal
Guodian Ansha
果淀暗沙
10
Penguin Bank
Paihong Tan
排洪灘
9
Tancred Shoal
Taojing Ansha
濤靜暗沙
10
Combe Shoal
Kongpai Ansha
控湃暗沙
7
Cathy Shoal
Huaxia Ansha
華夏暗沙
7
Siamese Shoal
Simen Ansha
西門暗沙
9
Bankok Shoal
Bengu Ansha
本固暗沙
7
Magpie Shoal
Meibin Ansha
美濱暗沙
8
Carpenter Shoal
Luban Ansha
魯班暗沙
8
Oliver Shoal
Zhongbei Ansha
中北暗沙
7
Hardy Patches1
Shitang Lianjiao
石塘連礁
8
Hand Shoal1
Zhizhang Ansha
指掌暗沙
9
Margesson Shoal1
Nanfei Ansha
南扉暗沙
8
Walker Shoal1
Manbu Ansha
漫步暗沙
5
Phillip's Shoal1
Lexi Ansha
樂西暗沙
9
Payne Shoal1
Pingnan Ansha
屏南暗沙
8
1 inside lagoon
Territorial claims
Macclesfield Bank is claimed, in whole or in part, by China and Taiwan. Some sources state that the Philippines claims this underwater feature. However, Jose Zaide, a Filipino diplomat of ambassadorial rank, has written that the Philippines does not claim the Macclesfield Bank. Moreover, Macclesfield Bank is not within UNCLOS 200 or Philippines EEZ. As the bank is entirely underwater, some scholars have raised questions regarding the legality of territorial claims upon it with regards to the United Nations Convention on the Law of the Sea. However, the Philippines filed claim for another underwater feature, the Benham Plateau, in 2008 in compliance with the requirements of UNCLOS and UN officially approved the claim in April 2012.