Cable & pipeline work in the South Atlantic Ocean
Cable laying, pipeline and seismic operations.
- in force
- 2
- last 12 months
- 3
- vs previous 12 (2)
- +50%
- since 1998
- 5,172
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 · 2
- HYDROLANT 1497/26in force2026-08-04Survey operations by cableship Nautilus are in progress near Angola until 22 August; wide berth requested.South Atlantic · Angola
- NAVAREA II 269/26in force2026-07-02Seismic survey by vessel Ramform Victory is in progress off Pointe Noire until further notice; wide berth requested.Pointe Noire
Longest in force
- NAVAREA II 269/26in force2026-07-02 · 51 dSeismic survey by vessel Ramform Victory is in progress off Pointe Noire until further notice; wide berth requested.Pointe Noire
- HYDROLANT 1497/26in force2026-08-04 · 18 dSurvey operations by cableship Nautilus are in progress near Angola until 22 August; wide berth requested.South Atlantic · Angola
By month (all years)
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Other hazards in the South Atlantic Ocean
Archive · 5,170 cancelled
- HYDROLANT 2403/122012-10-13 → 2012-10-17Seismic survey by M/V discoverer a. in progress along trackline between 36-50.38S 052-08.13W and 35-19.98S…Uruguay
- HYDROLANT 2402/122012-10-13 → 2012-10-17Seismic survey 14 thru 16 oct by M/V harrier explorer towing 6.5 mile long cables in area bound by 13-34.6S…Brazil-east Coast
- HYDROLANT 2393/122012-10-13 → 2012-10-21Seismic survey 130300Z to 200259Z oct by M/V nps sanco star and M/V nps ocean europe towing 300 meter long…Brazil-southeast Coast
- HYDROLANT 2362/122012-10-09 → 2012-10-14Seismic survey in progress until 13 oct by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 2338/122012-10-06 → 2012-10-13Seismic survey in progress until 130259Z oct by M/V nps wg cook towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 2337/122012-10-06 → 2012-10-13Seismic survey in progress until 130259Z oct by M/V nps veritas viking towing eight 3.5 mile long cables in…Brazil-southeast Coast
- HYDROLANT 2322/122012-10-04 → 2012-10-09Seismic survey in progress until 08 oct by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 2274/122012-09-29 → 2012-10-06Seismic survey 290300Z sep to 060259Z oct by M/V nps wg cook towing 12 five mile long cables in area bound…Brazil-south Coast
- HYDROLANT 2273/122012-09-29 → 2012-10-02Seismic survey in progress until 01 oct by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 2272/122012-09-29 → 2012-10-06Seismic survey 290300Z sep to 060259Z oct by M/V nps sanco star towing cables in area bound by 22-18.07S…Brazil-southeast Coast
- HYDROLANT 2242/122012-09-26 → 2012-09-29Seismic survey in progress until 28 sep by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 2193/122012-09-22 → 2012-09-29Seismic survey 220300Z to 290259Z sep by M/V nps sanco star and M/V ocean europe towing 300 meter long…Brazil-southeast Coast
- HYDROLANT 2192/122012-09-22 → 2012-09-29Seismic survey 220300Z to 290259Z sep by M/V nps wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 2185/122012-09-21 → 2012-09-26Seismic survey in progress until 25 sep by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 2173/122012-09-20 → 2012-12-03Seismic survey in progress until further notice by M/V oceanic endeavour towing 12 cables in area bound by…Eastern South Atlantic · Angola
- HYDROLANT 2139/122012-09-16 → 2012-09-21Seismic survey in progress until 20 sep by M/V hawk explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 2133/122012-09-15 → 2012-09-22Seismic survey 150300Z to 220259Z sep by M/V nps wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 2132/122012-09-15 → 2012-09-22Seismic survey 150300Z to 220259Z sep by M/V nps sanco star and M/V ocean europe towing 300 meter long…Brazil-southeast Coast
- HYDROLANT 2111/122012-09-11 → 2012-09-21Seismic survey by M/V pourquoi pas towing 5.4 mile long cables: a. in progress vicinity 01-00S 044-30WBrazil-north Coast
- HYDROLANT 2100/122012-09-10 → 2012-10-05Seismic survey in progress until further notice by M/V polarcus nadia towing 8000 meter long equipment in…Eastern South-atlantic
- HYDROLANT 2089/122012-09-09 → 2012-09-10Seismic survey in progress until 09 sep by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 2080/122012-09-07 → 2012-09-15Seismic survey 080300Z to 150259Z sep by M/V nps wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 2078/122012-09-07 → 2012-09-15Seismic survey 080300Z to 150259Z sep by M/V nps sanco star and M/V ocean europe towing 300 meter long…Brazil-southeast Coast
- HYDROLANT 2061/122012-09-06 → 2012-09-26Seismic survey in progress until further notice by M/V northern explorer towing 10500 meter long cable in…Eastern South Atlantic · Namibia
- HYDROLANT 2018/122012-09-01 → 2012-09-08Seismic survey 010300Z to 080259Z sep by M/V nps wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 2017/122012-09-01 → 2012-09-08Seismic survey 010300Z to 080259Z sep by M/V nps sanco star and M/V ocean europe towing 300 meter long…Brazil-southeast Coast
- HYDROLANT 2012/122012-08-31 → 2012-09-03Seismic survey in progress until 02 sep by M/V hawk explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 2005/122012-08-31 → 2012-09-05Seismic survey in progress until 04 sep by M/V discoverer in areas bound by: a. 35-00S 051-22W, 34-53S…Brazil-south Coast
- HYDROLANT 1963/122012-08-26 → 2012-08-31Seismic survey by M/V hawk explorer towing 6.5 mile long cables: a. 26 and 27 aug in area bound by 13-34.6S…Brazil-east Coast
- HYDROLANT 1959/122012-08-25 → 2012-09-01Seismic survey in progress until 010259Z sep by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1958/122012-08-25 → 2012-09-01Seismic survey in progress until 010259Z sep by M/V nps sanco star and M/V ocean europe towing 300 meter…Brazil-southeast Coast
- HYDROLANT 1957/122012-08-25 → 2012-09-01Seismic survey in progress until 010259Z sep by M/V nps veritas viking towing eight 3.5 mile long cables in…Brazil-southeast Coast
- HYDROLANT 1946/122012-08-24 → 2012-08-29Seismic survey in progress until 28 aug by M/V discoverer in area bound by 35-00S 051-22W, 34-53S 051-34W,…Brazil-south Coast
- HYDROLANT 1943/122012-08-23 → 2012-09-08Seismic survey in progress until 07 sep by M/V pourquoi pas towing 5.4 mile long cables along trackline…Brazil-north Coast
- HYDROLANT 1933/122012-08-22 → 2012-08-26Seismic survey in progress until 25 aug by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 1904/122012-08-18 → 2012-08-24Seismic survey in progress until 24 aug by M/V discoverer in area bound by 35-00S 051-22W, 34-53S 051-34W,…Brazil-south Coast
- HYDROLANT 1903/122012-08-18 → 2012-08-25Seismic survey 180300Z to 250259Z aug by M/V nps veritas viking towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1902/122012-08-18 → 2012-08-25Seismic survey 180300Z to 250259Z aug by M/V nps sanco star and M/V ocean europe towing 300 meter long…Brazil-southeast Coast
- HYDROLANT 1901/122012-08-18 → 2012-08-25Seismic survey 180300Z to 250259Z aug by M/V nps wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1900/122012-08-18 → 2012-08-21Seismic survey in progress until 21 aug by M/V hawk explorer towing 6.5 mile long cables along trackline…Brazil-east Coast
- HYDROLANT 1861/122012-08-14 → 2012-08-18Seismic survey in progress until 17 aug by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 1842/122012-08-11 → 2012-08-17Seismic survey in progress until 16 aug by M/V discoverer in area bound by 29-24S 047-49W, 29-17S 047-56W,…Brazil-south Coast
- HYDROLANT 1841/122012-08-11 → 2012-08-18Seismic survey 110300Z to 180259Z aug by M/V nps sanco star and M/V ocean europe towing 300 meter long…Brazil-southeast Coast
- HYDROLANT 1840/122012-08-11 → 2012-08-18Seismic survey 110300Z to 180259Z aug by M/V nps wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1839/122012-08-11 → 2012-08-18Seismic survey 110300Z to 1810259Z aug by M/V nps veritas viking towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1838/122012-08-11 → 2012-08-18Seismic survey 110300Z to 180259Z aug by M/V nps discoverer towing 5.5 mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1784/122012-08-04 → 2012-08-11Seismic survey in progress until 110259Z aug by M/V nps discoverer towing 12 cables in area bound by 25-43S…Brazil-south Coast
- HYDROLANT 1783/122012-08-04 → 2012-08-11Seismic survey in progress until 110259Z aug by M/V nps polar explorer towing 12 cables in area bound by…Brazil-southeast Coast
- HYDROLANT 1782/122012-08-04 → 2012-08-11Seismic survey in progress until 110259Z aug by M/V veritas viking towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1781/122012-08-04 → 2012-08-11Seismic survey in progress until 110259Z aug by M/V nps wg cook towing 12 five mile long cables in area…Brazil-south Coast
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.