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 1012/102010-06-03 → 2010-06-08Seismic survey in progress until 080259Z jun by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 1007/102010-06-02 → 2010-06-03Seismic survey in progress until 080259Z jun by M/V western neptune and M/V geco diamond towing 12 3.5 mile…Brazil-southeast Coast
- HYDROLANT 1006/102010-06-02 → 2010-06-08Seismic survey in progress until 080259Z jun by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 1005/102010-06-02 → 2010-06-08Seismic survey in progress until 080259Z jun by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 1004/102010-06-02 → 2010-06-08Seismic survey in progress until 080259Z jun by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 978/102010-05-30 → 2010-10-27Seismic survey in progress until further notice by M/V ramform sterling towing 8500 meter long cables in…Eastern South Atlantic · Angola
- HYDROLANT 956/102010-05-26 → 2010-06-02Seismic survey in progress until 020259Z jun by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 955/102010-05-26 → 2010-06-02Seismic survey in progress until 020259Z jun by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 954/102010-05-26 → 2010-06-02Seismic survey in progress until 020259Z jun by M/V western neptune towing 12 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 945/102010-05-25 → 2010-06-01Seismic survey in progress until 010259Z jun by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 913/102010-05-21 → 2010-05-26Seismic survey in progress until 260259Z may by M/V western neptune towing 12 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 912/102010-05-21 → 2010-05-25Seismic survey in progress until 250259Z jun by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 911/102010-05-21 → 2010-05-26Seismic survey in progress until 260259Z may by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 901/102010-05-20 → 2010-05-25Seismic survey in progress until 010259Z jun by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 899/102010-05-20 → 2010-05-26Seismic survey in progress until 260259Z may by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 865/102010-05-15 → 2010-05-20Seismic survey in progress until 200259Z may by M/V western neptune towing 12 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 855/102010-05-14 → 2010-05-20Seismic survey in progress until 200259Z may by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 854/102010-05-14 → 2010-05-20Seismic survey in progress until 200259Z may by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 853/102010-05-14 → 2010-05-20Seismic survey in progress until 200259Z may by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 852/102010-05-14 → 2010-05-20Seismic survey in progress until 200259Z may by M/V wg amundsen towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 794/102010-05-06 → 2010-05-12Seismic survey 060300Z to 120259Z may by M/V western neptune towing 12 3.5 mile long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 792/102010-05-05 → 2010-05-12Seismic survey 060300Z to 120259Z may by M/V ramform sovereing towing 14 8100 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 790/102010-05-05 → 2010-05-12Seismic survey in progress until 120259Z may by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 789/102010-05-05 → 2010-05-12Seismic survey in progress until 120259Z may by M/V wg amundsen towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 779/102010-05-04 → 2010-05-06Seismic survey 040300Z to 060259Z may by M/V ramform sovereing towing 14 8100 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 753/102010-04-30 → 2010-05-06Seismic survey in progress until 060259Z may by M/V wg amundsen towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 752/102010-04-30 → 2010-05-06Seismic survey in progress until 060259Z may by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 751/102010-04-30 → 2010-05-06Seismic survey in progress until 060259Z may by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 733/102010-04-27 → 2010-04-30Seismic survey in progress until 300259Z apr by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 732/102010-04-27 → 2010-04-30Seismic survey in progress until 300259Z apr by M/V wg amundsen towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 731/102010-04-27 → 2010-04-30Seismic survey in progress until 300259Z apr by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 730/102010-04-27 → 2010-04-30Seismic survey in progress until 300259Z apr by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 716/102010-04-25 → 2010-04-27Seismic survey in progress until 270259Z apr by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 686/102010-04-20 → 2010-04-27Seismic survey in progress until 270259Z apr by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 685/102010-04-20 → 2010-04-27Seismic survey in progress until 270259Z apr by M/V wg amundsen towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 683/102010-04-20 → 2010-04-27Seismic survey in progress until 270259Z apr by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 668/102010-04-17 → 2010-04-20Seismic survey in progress until 200259Z apr by M/V ramform sovereing towing 14 8100 meter long cables in…South Atlantic · Brazil-south Coast
- HYDROLANT 665/102010-04-17 → 2010-04-20Seismic survey in progress until 200259Z apr by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 664/102010-04-17 → 2010-04-20Seismic survey in progress until 200259Z apr by M/V wg amundsen towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 663/102010-04-17 → 2010-04-20Seismic survey in progress until 200259Z apr by M/V ocean europe and M/V sanco star in area bound by…Brazil-southeast Coast
- HYDROLANT 641/102010-04-14 → 2010-04-17Seismic survey in progress until 170259Z apr by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 640/102010-04-14 → 2010-04-17Seismic survey 140300Z to 170259Z apr by M/V ocean europe and M/V sanco star in area bound by 22-29.07S…Brazil-southeast Coast
- HYDROLANT 639/102010-04-14 → 2010-04-17Seismic survey in progress until 170259Z apr by M/V wg amundsen towing eight 3.5 mile long cables in area…Brazil-southeast Coast
- HYDROLANT 637/102010-04-14 → 2010-04-17Seismic survey 140300Z to 170259Z apr by M/V western neptune towing 12 3.5 mile long cables and M/V geco…Brazil-southeast Coast
- HYDROLANT 620/102010-04-09 → 2010-06-15Pipe laying operations in progress until 150001Z jun by M/V solitarie, M/V sealior, M/V amazonia and M/V…Brazil-south Coast
- HYDROLANT 608/102010-04-07 → 2010-04-13Seismic survey in progress until 130259Z apr by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 607/102010-04-07 → 2010-04-13Seismic survey in progress until 130259Z apr by M/V veritas vantage towing eight 7000 meter long cables in…Brazil-south Coast
- HYDROLANT 606/102010-04-07 → 2010-04-13Seismic survey in progress until 130259Z apr by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 605/102010-04-07 → 2010-04-13Seismic survey 070300Z to 130259Z apr by M/V ocean europe and M/V sanco star in area bound by 22-29.07S…Brazil-southeast Coast
- HYDROLANT 604/102010-04-07 → 2010-04-13Seismic survey 070300Z to 130259Z apr by M/V wg amundsen towing eight 3.5 mile long cables 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.