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 2637/132013-10-22 → 2013-10-23Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 22 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2636/132013-10-22 → 2013-10-23Seismic survey 22 oct by M/V ramform vanguard towing 12 7000 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2618/132013-10-20 → 2013-10-22Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 20 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2617/132013-10-20 → 2013-10-22Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 20 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2602/132013-10-19 → 2013-10-21Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 19 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2601/132013-10-19 → 2013-10-21Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 19 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2598/132013-10-19 → 2013-10-26Seismic survey 190300Z to 260159Z oct by M/V nps western neptune towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 2597/132013-10-19 → 2013-10-26Seismic survey 190300Z to 260159Z oct by M/V nps oceanic endeavour towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 2584/132013-10-18 → 2013-10-20Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 18 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2583/132013-10-18 → 2013-10-20Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 18 oct along tracklines between…Western South Atlantic · Uruguay
- HYDROLANT 2579/132013-10-17 → 2013-10-18Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 17 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2578/132013-10-17 → 2013-10-18Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 17 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2575/132013-10-17 → 2013-12-03Seismic survey in progress until further notice by M/V geo coral towing 12 8100 meter long cables in areas…Eastern South Atlantic · Angola
- HYDROLANT 2564/132013-10-16 → 2013-10-18Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 16 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2555/132013-10-15 → 2013-10-16Seismic survey in progress until 16 oct by M/V ramform vanguard towing 12 7000 meter long cables along…Western South Atlantic · Uruguay
- HYDROLANT 2549/132013-10-15 → 2013-10-17Seismic survey in progress until further notice by M/V geo coral towing 12 8100 meter long cables in area…Eastern South Atlantic · Angola
- HYDROLANT 2548/132013-10-15 → 2013-10-17Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 15 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2542/132013-10-14 → 2013-10-15Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 14 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2537/132013-10-14 → 2013-10-15Seismic survey 14 oct by M/V ramform vanguard towing 12 7000 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 2534/132013-10-13 → 2013-11-20Seismic survey in progress until 302359Z nov by M/V polarcus nadia towing 12 four mile long cables in area…Eastern South Atlantic · Congo
- HYDROLANT 2533/132013-10-13 → 2013-10-15Seismic survey in progress until further notice by M/V geo coral towing 12 8100 meter long cables in area…Eastern South Atlantic · Angola
- HYDROLANT 2532/132013-10-13 → 2013-10-19Seismic survey in progress until 190259Z oct by M/V nps western neptune towing 12 five mile long cables in…Brazil-southeast Coast
- HYDROLANT 2531/132013-10-13 → 2013-10-19Seismic survey in progress until 190259Z oct by M/V nps oceanic endeavour towing 12 five mile long cables in…Brazil-southeast Coast
- HYDROLANT 2524/132013-10-13 → 2013-10-31Seismic survey 150001Z to 302359Z oct by M/V tasman towing six 3200 meter long cables in area bound by…Eastern South Atlantic · Angola
- HYDROLANT 2522/132013-10-12 → 2013-10-14Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 12 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2516/132013-10-11 → 2013-10-14Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 11 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2502/132013-10-10 → 2013-10-12Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 10 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2501/132013-10-10 → 2013-10-13Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 10 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2495/132013-10-09 → 2013-10-10Seismic survey 09 oct by M/V ramform vanguard towing 12 7000 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 2482/132013-10-08 → 2013-10-09Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 08 oct along tracklines between:…Western South Atlantic · Uruguay
- HYDROLANT 2469/132013-10-06 → 2013-10-08Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 06 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2463/132013-10-05 → 2013-10-10Seismic survey in progress until further notice by M/V western regent towing ten 8800 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2462/132013-10-04 → 2013-10-06Seismic survey in progress until 05 oct by M/V ramform vanguard towing 12 7000 meter long cables along…Western South Atlantic · Uruguay
- HYDROLANT 2461/132013-10-04 → 2013-10-12Seismic survey in progress until 120259Z oct by M/V nps western neptune towing 12 five mile long cables in…Brazil-south Coast
- HYDROLANT 2449/132013-10-03 → 2013-10-19Seismic survey in progress until 31 dec by M/V towing ten 4.5 mile long cables in area bound by 36-01.8S…Western South Atlantic · Uruguay
- HYDROLANT 2448/132013-10-03 → 2013-10-04Seismic survey 03 oct by M/V ramform vanguard towing 12 7000 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2443/132013-10-03 → 2013-10-04Seismic survey 03 oct by M/V ramform vanguard towing 12 7000 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2442/132013-10-03 → 2013-10-12Seismic survey 050300Z to 120259Z oct by M/V nps oceanic endeavour towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 2430/132013-10-01 → 2013-10-03Seismic survey in progress until 03 oct by M/V ramform vanguard towing 12 7000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 2422/132013-10-01 → 2013-10-05Seismic survey in progress until further notice by M/V western regent towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2414/132013-09-30 → 2013-10-02Seismic survey in progress until 01 oct by M/V ramform vanguard towing 12 7000 meter cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 2399/132013-09-28 → 2013-10-01Seismic survey in progress until further notice by M/V western regent towing ten 8800 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2398/132013-09-28 → 2013-10-05Seismic survey in progress until 050259Z oct by M/V nps western neptune towing 12 five mile long cables in…Brazil-south Coast
- HYDROLANT 2393/132013-09-27 → 2013-09-29Seismic survey in progress until 28 sep by M/V ramform vanguard towing 12 7000 meter cables along tracklines…Western South Atlantic · Uruguay
- HYDROLANT 2372/132013-09-25 → 2013-10-05Seismic survey in progress until further notice by M/V western regent towing ten 8800 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2367/132013-09-24 → 2013-09-28Seismic survey in progress until 280259Z sep by M/V nps western neptune towing 12 five mile long cables in…Brazil-south Coast
- HYDROLANT 2356/132013-09-23 → 2013-09-25Seismic survey in progress until further notice by M/V western regent towing ten 8800 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2343/132013-09-22 → 2013-09-24Seismic survey in progress until 23 sep by M/V ramform vanguard towing 12 7000 meter cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 2340/132013-09-21 → 2013-09-23Seismic survey in progress until further notice by M/V western regent towing ten 8800 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2335/132013-09-21 → 2013-09-25Seismic survey 210300Z to 250259Z sep by M/V western neptune towing 12 6000 meter long cables in area bound…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.