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 568/102010-04-01 → 2010-08-26Pipeline operations 041300Z apr to 260300Z aug by M/V seisranger in area bound by 22-26.57S 040-13.78W,…Brazil-east Coast
- HYDROLANT 565/102010-04-01 → 2010-04-07Seismic survey in progress until 070259Z apr by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 562/102010-04-01 → 2010-04-07Seismic survey in progress until 070259Z apr by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 561/102010-04-01 → 2010-04-07Seismic survey in progress until 070259Z apr by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 560/102010-04-01 → 2010-04-07Seismic survey in progress until 070259Z apr by M/V wg amundsen towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 559/102010-04-01 → 2010-04-07Seismic survey in progress until 070259Z apr by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 556/102010-03-31 → 2010-04-01Seismic survey in progress until 010259Z apr by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 548/102010-03-30 → 2010-03-31Seismic survey in progress until 310259Z mar by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 538/102010-03-28 → 2010-04-01Seismic survey in progress until 010259Z apr by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 532/102010-03-27 → 2010-04-01Seismic survey in progress until 010259Z apr by M/V wg amundsen towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 530/102010-03-27 → 2010-04-01Seismic survey in progress until 010259Z apr by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 529/102010-03-27 → 2010-04-01Seismic survey in progress until 010259Z apr by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 528/102010-03-27 → 2010-03-30Seismic survey in progress until 300259Z mar by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 486/102010-03-20 → 2010-03-27Seismic survey in progress until 270259Z mar by M/V wg amundsen towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 476/102010-03-19 → 2010-03-27Seismic survey in progress until 270259Z mar by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 475/102010-03-19 → 2010-03-27Seismic survey in progress until 270259Z mar by M/V western patriot towing eight four mile long cables and…Brazil-south Coast
- HYDROLANT 474/102010-03-19 → 2010-03-27Seismic survey in progress until 270259Z mar by M/V western neptune towing 12 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 473/102010-03-19 → 2010-03-27Seismic survey in progress until 270259Z mar by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 472/102010-03-19 → 2010-03-27Seismic survey in progress until 270259Z mar by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 439/102010-03-13 → 2010-03-19Seismic survey in progress until 200259Z mar by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 438/102010-03-13 → 2010-03-19Seismic survey 130300Z to 200259Z mar by M/V veritas vantage towing eight 7000 meter long cables in area…Brazil-south Coast
- HYDROLANT 437/102010-03-13 → 2010-03-19Seismic survey 130300Z to 200259Z mar by M/V western patriot towing eight four mile long cables and M/V geco…Brazil-south Coast
- HYDROLANT 436/102010-03-13 → 2010-03-19Seismic survey 130300Z to 200259Z mar by M/V ramform sovereing towing 14 8100 meter long cables in area…Brazil-south Coast
- HYDROLANT 435/102010-03-13 → 2010-03-19Seismic survey 130300Z to 200259Z mar by M/V western neptune towing 12 3.5 mile long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 419/102010-03-11 → 2010-03-12Seismic survey in progress until 16 mar by M/V veritas vantage towing eight 7500 meter long cables in area…Brazil-south Coast
- HYDROLANT 414/102010-03-09 → 2010-03-13Seismic survey in progress until 130259Z mar by M/V western neptune towing 12 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 410/102010-03-09 → 2010-03-11Seismic survey in progress until 130259Z mar by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 409/102010-03-09 → 2010-03-13Seismic survey in progress until 130259Z mar by M/V western patriot towing eight four mile long cables and…Brazil-south Coast
- HYDROLANT 408/102010-03-09 → 2010-03-13Seismic survey in progress until 130259Z mar by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 407/102010-03-09 → 2010-03-13Seismic survey in progress until 130259Z mar by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 394/102010-03-04 → 2010-03-16Cable operations in progress until 15 mar by M/V peter faber along trackline joining 03-45.69S 038-26.50W,…Brazil-north Coast
- HYDROLANT 388/102010-03-03 → 2010-03-09Seismic survey in progress until 090259Z mar by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 387/102010-03-03 → 2010-03-09Seismic survey in progress until 090259Z mar by M/V western patriot towing eight 3.5 mile long cables and…Brazil-south Coast
- HYDROLANT 386/102010-03-03 → 2010-03-09Seismic survey in progress until 090259Z mar by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 385/102010-03-03 → 2010-03-09Seismic survey in progress until 090259Z mar by M/V western neptune towing 12 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 340/102010-02-23 → 2010-03-01Seismic survey in progress until 28 feb by M/V veritas vantage towing 5.4 mile long cable in area bound by…Brazil-northeast Coast
- HYDROLANT 331/102010-02-21 → 2010-03-04Cable operations 24 feb thru 05 mar by M/V peter faber along trackline joining 03-45.69S 038-26.50W,…Brazil-north Coast
- HYDROLANT 326/102010-02-20 → 2010-03-01Seismic survey in progress until 010259Z mar by M/V western patriot towing eight 3.5 mile long cables and…Brazil-south Coast
- HYDROLANT 325/102010-02-20 → 2010-03-01Seismic survey in progress until 010259Z mar by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 324/102010-02-20 → 2010-03-01Seismic survey in progress until 010259Z mar by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 318/102010-02-19 → 2010-02-23Seismic survey in progress until 26 feb by M/V veritas vantage towing 5.4 mile long cable in area bound by…Brazil-northeast Coast
- HYDROLANT 286/102010-02-14 → 2010-02-20Seismic survey in progress until 19 feb by M/V veritas vantage towing 5.4 mile long cable in area bound by…Brazil-northeast Coast
- HYDROLANT 282/102010-02-13 → 2010-02-20Seismic survey in progress until 200200Z mar by M/V western patriot towing eight 3.5 mile long cables and…Brazil-south Coast
- HYDROLANT 281/102010-02-13 → 2010-02-20Seismic survey in progress until 200159Z feb by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 280/102010-02-13 → 2010-02-20Seismic survey in progress until 200259Z feb by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 279/102010-02-13 → 2010-02-20Seismic survey in progress until 200159Z feb by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 250/102010-02-09 → 2010-02-15Seismic survey in progress until 14 feb by M/V veritas vantage towing 5.4 mile long cable in area bound by…Brazil-northeast Coast
- HYDROLANT 224/102010-02-04 → 2010-02-10Seismic survey in progress until 09 feb by M/V veritas vantage towing 5.4 mile long cable in area bound by…Brazil-northeast Coast
- HYDROLANT 215/102010-02-03 → 2010-02-10Seismic survey 040100Z feb to 212000Z mar by M/V western patriot towing eight 6000 meter long cables in area…Brazil-south Coast
- HYDROLANT 206/102010-02-02 → 2010-02-13Seismic survey in progress until 130159Z feb by M/V ocean europe and M/V sanco star in area bound by…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.