Survey operations in the South China Sea
Hydrographic and scientific survey vessels, often towing long arrays.
- in force
- 1
- last 12 months
- 1
- vs previous 12 (0)
- —
- since 1999
- 135
Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.
In force now · 1
Longest in force
By month (all years)
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Other hazards in the South China Sea
Archive · 134 cancelled
- HYDROPAC 1310/152015-04-18 → 2015-06-20Underwater operations 19 apr thru 19 jun by dredge long chau and dredge long chau 02 within 1000 meters of…South China Sea · Vietnam
- HYDROPAC 3828/142014-12-22 → 2014-12-31Underwater operations 0001Z to 1200Z daily until 31 dec in area bound by 18-51.0N 108-14.0E, 18-50.2N…South China Sea · Gulf of Tonkin
- HYDROPAC 2448/142014-08-20 → 2014-09-16Survey operations in progress until 15 sep by M/V salvin diamond vicinity of trackline joining 08-33-37.476N…South China Sea
- HYDROPAC 2035/142014-07-10 → 2014-10-01Survey operations 12 jul thru 30 sep by M/V le quoc 01 in area bound by 19-23-26.5N 105-49-44.5E,…Gulf of Tonkin · Vietnam
- HYDROPAC 1919/142014-07-01 → 2014-09-16Survey operations in progress until 15 sep by M/V bp 05-04-05 towing 250 meter long cable in area bound by…Gulf of Tonkin · Vietnam
- HYDROPAC 1218/142014-04-28 → 2014-05-01Underwater operations in progress until 30 apr in area bound by 17-59.7N 111-57.5E, 17-53.6N 112-01.4E,…South China Sea
- HYDROPAC 664/142014-03-08 → 2014-03-23Underwater operations in progress until 22 mar by M/V joides resolution in 12-55.1N 115-02.8ESouth China Sea
- HYDROPAC 3258/132013-10-21 → 2013-11-29Underwater operations in progress until 28 nov by M/V skandi hawk with submersible vicinity 11-38.5N 118-54.3ESouth China Sea · Philippines
- HYDROPAC 2581/132013-08-28 → 2013-10-21Underwater operations in progress until 20 oct by M/V toisa paladin with submersible along trackline between…South China Sea
- HYDROPAC 2524/132013-08-23 → 2013-08-28Underwater operations 28 aug thru 20 oct by M/V chu ba phuong along trackline between 07-27.4N 108-24.9E and…South China Sea
- HYDROPAC 1315/132013-05-08 → 2013-05-26Underwater operations in progress until 25 may by M/V hai yang shi you 941 within one mile of 21-48-46N…Northern South China Sea
- HYDROPAC 2061/122012-07-20 → 2012-07-25Underwater operations in progress until 24 jul by M/V dsv rem etive vicinity 11-38-32N 118-58-22ESouth China Sea
- HYDROPAC 1717/122012-06-18 → 2012-07-16Underwater operations in progress until 15 jul vicinity of trackline joining 22-14.5N 114-39.1E, 21-31.9N…South China Sea
- HYDROPAC 1591/122012-06-07 → 2012-07-01Underwater operations in progress until 30 jun in area bound by 19-58-00N 115-22-15E, 19-57-30N 115-26-30E,…South China Sea
- HYDROPAC 1590/122012-06-07 → 2012-06-26Underwater operations in progress until 25 jun within two miles of 19-22-59N 112-05-27ESouth China Sea
- HYDROPAC 1233/112011-04-22 → 2011-05-11Drilling operations in progress until 10 may by drilling vessel nanhai 4 within 2000 meters of 18-36.3N…South China Sea
- HYDROPAC 1225/112011-04-21 → 2011-04-22Drilling operations in progress until 10 may by drilling vessel nanhai 4 within 2000 meters of 18-36.3N…South China Sea
- HYDROPAC 1171/102010-06-04 → 2010-07-31Underwater operations in progress until 30 jul in area bound by 18-43N 110-58E, 18-43N 111-20E, 18-15N…South China Sea
- HYDROPAC 587/102010-03-24 → 2010-03-28Survey operations in progress until 05 may by M/V pacific explorer in 05-50N 106-20ESouth China Sea
- HYDROPAC 1437/082008-07-27 → 2008-08-05Oceanographic survey 01 thru 04 aug by M/V baruna jaya 1 in area bound by 12-39-03.9N 119-54-54.5E,…
- HYDROPAC 2050/062006-10-27 → 2007-04-27Survey operations in progress until further notice by M/V geco eagle towing ten 3.5 mile long cables in area…
- HYDROPAC 1549/062006-08-15 → 2006-10-01Survey operations in progress until 30 sep by M/V towing 5000 meter long cable in area bound by 16-29.9N…
- HYDROPAC 1930/052005-11-19 → 2005-12-02Underwater operations in progress until further notice vicinity 01-25.3N 104-29.3E
- HYDROPAC 1861/052005-11-05 → 2005-11-06Underwater operations in progress until 061100Z nov vicinity 01-25.14N 104-29.14E
- HYDROPAC 1544/052005-09-21 → 2005-10-25Siesmic survey in progress until 30 oct by M/V nan hai 502 in area bound by 08-55N 117-00E, 08-55N 112-45E,…
- HYDROPAC 1336/052005-08-19 → 2005-10-01Survey operations in progress until 30 sept by M/V geo surveyor towing 1500 meter long cable in area bound…
- HYDROLANT 1515/052005-08-19 → 2005-08-19Survey operations in progress until 30 sept by M/V geo surveyor towing 1500 meter long cable in area bound…
- HYDROPAC 1292/052005-08-10 → 2005-08-11Survey operations in progress until 10 sep by M/V pacific sword in area bound by 05-16-57N 114-31-20E,…
- HYDROPAC 620/052005-04-13 → 2005-06-01Survey operations 18 apr thru 31 may by M/V E.T
- HYDROPAC 957/022002-05-23 → 2002-06-12Survey operations in progress until 30 jun by vessel towing 3800 meter long cable in area bound by 18-45.1N…
- HYDROPAC 1196/012001-07-28 → 2001-09-03Survey operations in progress until further notice by M/V geco eagle towing four mile long cable in area…
- HYDROPAC 643/012001-04-28 → 2001-06-02Survey operations in progress until further notice by M/V geco eagle towing four mile long cable in area…
- HYDROPAC 840/002000-06-06 → 2000-07-31Underwater operations in progress until 30 jul within two miles of 25-13-21N 120-04-18E
- HYDROPAC 332/991999-04-23 → 1999-07-11Survey operations in progress until 10 jul by M/V seabulk ross seal towing 4500 meter long cable in areas…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.