Investigator Shoal

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Investigator Shoal
Disputed island
Other names: Yuya Ansha 榆亚暗沙;
Terumbu Peninjau;
Investigator Shoal, Spratly Islands.png
Satellite image of Investigator Shoal by NASA.
Investigator Shoal is located in South China Sea
Investigator Shoal
Investigator Shoal (South China Sea)
Location South China Sea
Coordinates 8°6′51″N 114°42′7″E / 8.11417°N 114.70194°E / 8.11417; 114.70194Coordinates: 8°6′51″N 114°42′7″E / 8.11417°N 114.70194°E / 8.11417; 114.70194
Archipelago Spratly Islands
Administered by
Claimed by
People's Republic of China
City Sansha, Hainan
Municipality Kalayaan, Palawan
Republic of China (Taiwan)
Municipality Cijin, Kaohsiung
District Truong Sa, Khanh Hoa

Not to be confused with North East Investigator Shoal in the Spratly group.

Investigator Shoal, known as Yuya Ansha (Chinese: 榆亚暗沙) in China, Terumbu Peninjau in Malaysia, Pawikan in the Philippines, and bãi Thám hiểm in Vietnam is an atoll above water at low tide; some large rocks at the western end might be visible at high water. The atoll has a total length of 32.1 km, and is up to 10.6 km wide.[1] The total area of the atoll is 188 km². The lagoon is up to 45 meters deep.[2]

The Royal Malaysian Navy has maintained a naval station called "Papa Station" since 1999.[3]


  1. ^ measured from the satellite image with the measuring tool at Wikimapia
  2. ^ Atoll Area, Depth and Rainfall
  3. ^ Joshua Ho; Sam Bateman (15 February 2013). Maritime Challenges and Priorities in Asia: Implications for Regional Security. Routledge. pp. 74–. ISBN 978-1-136-29820-2.