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 2904/132013-11-17 → 2013-11-18Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 17 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2901/132013-11-17 → 2013-11-18Seismic survey 17 nov by M/V western regent towing ten 8800 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 2897/132013-11-16 → 2013-11-17Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 16 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2889/132013-11-15 → 2013-11-18Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 15 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2880/132013-11-15 → 2013-11-18Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 15 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2879/132013-11-15 → 2013-11-17Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 15 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2877/132013-11-15 → 2013-11-23Seismic survey in progress until 230159Z nov by M/V nps oceanic endeavour towing 12 five mile long cables in…Brazil-southeast Coast
- HYDROLANT 2876/132013-11-15 → 2013-11-23Seismic survey in progress until 230159Z nov by M/V western neptune towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 2871/132013-11-14 → 2013-11-15Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 14 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2864/132013-11-13 → 2013-11-15Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 13 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2862/132013-11-13 → 2013-11-28Seismic survey in progress until further notice by M/V ramform viking in areas bound by: a. 06-06.8S…Eastern South Atlantic · Angola
- HYDROLANT 2852/132013-11-12 → 2013-11-14Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 12 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2840/132013-11-10 → 2013-11-12Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 10 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2839/132013-11-10 → 2013-11-12Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 10 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2829/132013-11-09 → 2013-12-01Cable repair operations 10 thru 30 nov by cableship it intrepid in 23-18.04S 043-21.88WBrazil-south Coast
- HYDROLANT 2827/132013-11-09 → 2013-11-11Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 09 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2823/132013-11-09 → 2013-11-15Seismic survey in progress until 160159Z nov by M/V nps oceanic endeavour towing 12 five long cables in area…Brazil-southeast Coast
- HYDROLANT 2822/132013-11-09 → 2013-11-15Seismic survey in progress until 160159Z nov by M/V western neptune towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 2816/132013-11-08 → 2013-11-11Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 08 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2815/132013-11-08 → 2013-11-11Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 08 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2800/132013-11-07 → 2013-11-09Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 07 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2799/132013-11-07 → 2013-11-10Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 07 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2791/132013-11-06 → 2013-11-07Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 06 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2778/132013-11-05 → 2013-11-06Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 05 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2773/132013-11-05 → 2013-11-07Seismic survey in progress until further notice by M/V western regent towing ten 8800 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2772/132013-11-05 → 2013-11-06Seismic survey 05 nov by M/V ramform vanguard towing 12 7000 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2747/132013-11-03 → 2013-11-05Seismic survey 03 and 04 nov by M/V ramform vanguard towing 12 7000 meter long cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 2740/132013-11-02 → 2013-11-09Seismic survey in progress until 090159Z nov by M/V western neptune towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 2739/132013-11-02 → 2013-11-09Seismic survey in progress until 090159Z nov by M/V nps oceanic endeavour towing 12 five long cables in area…Brazil-southeast Coast
- HYDROLANT 2738/132013-11-02 → 2013-11-03Seismic survey 02 nov by M/V ramform vanguard towing 12 7000 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2736/132013-11-01 → 2013-11-13Cable operations in progress until 12 nov by cableship teneo along trackline joining 23-14.08S 043-16.10W,…Brazil-south Coast
- HYDROLANT 2735/132013-10-31 → 2013-11-02Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 31 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2717/132013-10-30 → 2013-11-02Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 30 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2716/132013-10-30 → 2013-11-01Seismic survey 30 and 31 oct by M/V ramform vanguard towing 12 7000 meter long cables along tracklines…Western South Atlantic · Uruguay
- HYDROLANT 2694/132013-10-28 → 2013-10-30Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 28 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2693/132013-10-28 → 2013-10-30Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 28 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2689/132013-10-27 → 2013-10-28Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 27 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2688/132013-10-27 → 2013-11-02Seismic survey 27 oct by M/V western regent towing ten 8800 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 2687/132013-10-27 → 2013-10-28Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 27 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2681/132013-10-26 → 2013-10-27Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 26 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2678/132013-10-26 → 2013-11-02Seismic survey 260200Z oct to 020159Z nov by M/V nps western neptune towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 2677/132013-10-26 → 2013-11-02Seismic survey 260200Z oct to 020159Z nov by M/V nps oceanic endeavour towing 12 five mile long cables in…Brazil-southeast Coast
- HYDROLANT 2671/132013-10-25 → 2013-10-28Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 25 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2660/132013-10-24 → 2013-10-26Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 24 and 25 oct along trackline…Western South Atlantic · Uruguay
- HYDROLANT 2657/132013-10-24 → 2013-10-25Seismic survey 24 oct by M/V western regent towing ten 8800 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 2655/132013-10-24 → 2013-11-04Cable operations in progress until 03 nov by cableship it intrepid vicinity 23-18.04S 043-21.88WBrazil-south Coast
- HYDROLANT 2646/132013-10-23 → 2013-10-25Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 23 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2645/132013-10-23 → 2013-10-24Seismic survey 23 oct by M/V western regent towing ten 8800 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 2643/132013-10-23 → 2013-10-23Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 23 oct along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2641/132013-10-22 → 2013-11-01Cable operations in progress until 31 oct by cableship teneo along trackline joining 23-14.08S 043-16.10W,…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.