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 2056/102010-10-29 → 2010-10-29Seismic survey in progress until 050159Z nov by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 2055/102010-10-29 → 2010-11-05Seismic survey in progress until 050159Z nov by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 2054/102010-10-29 → 2010-11-05Seismic survey in progress until 050159Z nov by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1998/102010-10-22 → 2010-10-29Seismic survey in progress until 290159Z oct by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1997/102010-10-22 → 2010-10-29Seismic survey in progress until 290159Z oct by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 1996/102010-10-22 → 2010-10-29Seismic survey in progress until 290159Z oct by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 1951/102010-10-14 → 2010-10-22Seismic survey in progress until 220159Z oct by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 1950/102010-10-14 → 2010-10-22Seismic survey in progress until 220159Z oct by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 1949/102010-10-14 → 2010-10-22Seismic survey in progress until 220159Z oct by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1926/102010-10-10 → 2010-10-18Seismic survey in progress until 180259Z oct by M/V western neptune towing 12 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1900/102010-10-06 → 2010-10-14Seismic survey in progress until 140259Z oct by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 1899/102010-10-05 → 2010-10-14Seismic survey in progress until 140259Z oct by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1898/102010-10-05 → 2010-10-14Seismic survey in progress until 140259Z oct by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 1897/102010-10-05 → 2010-10-14Seismic survey in progress until 140259Z oct by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 1878/102010-10-03 → 2010-12-04Pipeline operations 030300Z oct to 042100Z dec by M/V skandi achiever along trackline joining 24-21.14S…Brazil-south Coast
- HYDROLANT 1860/102010-09-30 → 2010-10-06Seismic survey in progress until 060259Z oct by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 1855/102010-09-30 → 2010-10-06Seismic survey in progress until 060259Z oct by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 1854/102010-09-30 → 2010-10-06Seismic survey in progress until 060259Z oct by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 1851/102010-09-30 → 2010-12-02Pipeline operations in progress until 01 dec by M/V seven oceans and M/V seis ranger in area bound by…Brazil-southeast Coast
- HYDROLANT 1813/102010-09-25 → 2010-09-30Seismic survey in progress until 300259Z sep by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 1812/102010-09-25 → 2010-09-30Seismic survey 250300Z to 300259Z sep by M/V ocean europe and M/V sanco star in area bound by 22-10.97S…Brazil-southeast Coast
- HYDROLANT 1811/102010-09-25 → 2010-09-30Seismic survey 250300Z to 300259Z sep by M/V western neptune towing 12 3.5 mile long cables and M/V geco…Brazil-southeast Coast
- HYDROLANT 1781/102010-09-21 → 2010-09-25Seismic survey in progress until 250259Z sep by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 1780/102010-09-21 → 2010-09-25Seismic survey 210300Z to 250259Z sep by M/V ocean europe and M/V sanco star in area bound by 22-10.97S…Brazil-southeast Coast
- HYDROLANT 1779/102010-09-21 → 2010-09-25Seismic survey 210300Z to 250259Z sep by M/V western neptune towing 12 3.5 mile long cables and M/V geco…Brazil-southeast Coast
- HYDROLANT 1755/102010-09-17 → 2010-09-21Seismic survey in progress until 210259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1754/102010-09-17 → 2010-09-21Seismic survey in progress until 210259Z sep by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 1753/102010-09-17 → 2010-09-21Seismic survey 170300Z to 210259Z sep by M/V western neptune towing 12 3.5 mile long cables and M/V geco…Brazil-southeast Coast
- HYDROLANT 1752/102010-09-17 → 2010-09-21Seismic survey 170300Z to 210259Z sep by M/V ocean europe and M/V sanco star in area bound by 22-10.97S…Brazil-southeast Coast
- HYDROLANT 1703/102010-09-10 → 2010-09-14Seismic survey in progress until 170259Z sep by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 1702/102010-09-10 → 2010-09-17Seismic survey in progress until 170259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1700/102010-09-10 → 2010-09-17Seismic survey in progress until 170259Z sep by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 1697/102010-09-10 → 2010-09-17Seismic survey in progress until 170259Z sep by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 1671/102010-09-04 → 2010-09-10Seismic survey in progress until 100259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1670/102010-09-04 → 2010-09-10Seismic survey in progress until 100259Z sep by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 1669/102010-09-04 → 2010-09-10Seismic survey in progress until 100259Z sep by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 1660/102010-09-03 → 2010-09-16Pipeline operations 040300Z to 160300Z sep by M/V toisa sentinel in 13-29.37S 038-48.72WBrazil-east Coast
- HYDROLANT 1640/102010-08-31 → 2010-09-04Seismic survey in progress until 040259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1639/102010-08-31 → 2010-09-04Seismic survey in progress until 040259Z sep by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 1636/102010-08-31 → 2010-12-01Seismic survey in progress until 30 nov by M/V andrew charles towing 200 meter long cable in area bound by…Brazil-north Coast
- HYDROLANT 1624/102010-08-29 → 2010-09-03Pipeline operations in progress until 280300Z sep by M/V toisa sentinel vicinity 19-33.75S 039-15.63WBrazil-east Coast
- HYDROLANT 1620/102010-08-28 → 2010-08-31Seismic survey in progress until 310259Z aug by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1613/102010-08-27 → 2010-08-31Seismic survey in progress until 310259Z aug by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 1610/102010-08-26 → 2010-08-31Seismic survey in progress until 310259Z aug by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 1581/102010-08-21 → 2010-08-27Seismic survey in progress until 270259Z aug by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 1580/102010-08-21 → 2010-08-27Seismic survey in progress until 270259Z aug by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1579/102010-08-21 → 2010-08-27Seismic survey in progress until 270259Z aug by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 1575/102010-08-21 → 2010-08-27Seismic survey in progress until 270259Z aug by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 1553/102010-08-17 → 2010-08-21Seismic survey 170300Z to 210259Z aug by M/V ocean europe and M/V sanco star in area bound by 22-23.98S…Brazil-southeast Coast
- HYDROLANT 1552/102010-08-17 → 2010-08-21Seismic survey 170300Z to 210259Z aug by M/V ramform sovereing towing 14 8100 meter long cables in area…Brazil-southeast 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.