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 782/132013-03-27 → 2013-03-30Seismic survey 28 and 29 mar by M/V ramform vanguard towing 12 7000 meter long cables along tracklines…Western South Atlantic · Uruguay
- HYDROLANT 762/132013-03-26 → 2013-03-29Seismic survey by M/V hawk explorer towing 12000 meter long cables: a. in progress until 27 mar along…Brazil-south Coast
- HYDROLANT 761/132013-03-25 → 2013-06-18Seismic survey in progress until further notice by M/V sanco spirit towing 8100 meter long cable in area…Eastern South Atlantic · Namibia
- HYDROLANT 758/132013-03-25 → 2013-05-30Seismic survey in progress until further notice by M/V northern explorer towing 10000 meter long cable in…Eastern South Atlantic · South Africa-west Coast
- HYDROLANT 754/132013-03-25 → 2013-03-28Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 25 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 750/132013-03-24 → 2013-03-27Seismic survey by M/V wg tasman towing 12 8800 meter long cables: a. 24 and 25 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 745/132013-03-24 → 2013-03-25Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 24 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 736/132013-03-22 → 2013-03-25Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 23 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 728/132013-03-22 → 2013-03-22Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 726/132013-03-22 → 2013-03-26Seismic survey by M/V hawk explorer towing 12000 meter long cables: a. in progress until 23 mar in area…Brazil-south Coast
- HYDROLANT 721/132013-03-21 → 2013-03-22Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. in progress until 21 mar along…Western South Atlantic · Uruguay
- HYDROLANT 714/132013-03-20 → 2013-03-27Seismic survey in progress until 270159Z mar by M/V munin explorer towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 713/132013-03-20 → 2013-03-27Seismic survey in progress until 270159Z mar by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 711/132013-03-20 → 2013-03-27Seismic survey in progress until 270159Z mar by M/V western neptune towing 12 6000 meter long cables in area…Brazil-south Coast
- HYDROLANT 710/132013-03-20 → 2013-03-27Seismic survey in progress until 270159Z mar by M/V ramform viking towing ten eight meter long cables in…Brazil-southeast Coast
- HYDROLANT 709/132013-03-20 → 2013-03-27Seismic survey in progress until 270159Z mar by M/V ramform soverign towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 708/132013-03-20 → 2013-03-27Seismic survey in progress until 270159Z mar by M/V ocean europe towing three 200 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 707/132013-03-20 → 2013-03-27Seismic survey in progress until 270159Z mar by M/V sanco star towing three 200 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 694/132013-03-19 → 2013-03-21Seismic operation 19 and 20 mar by M/V wg tasman towing 12 8800 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 689/132013-03-19 → 2013-03-19Seismic survey 19 and 20 mar by M/V wg tasman towing 12 8800 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 685/132013-03-19 → 2013-03-22Seismic survey by M/V hawk explorer towing 12000 meter long cables: a. 19 and 20 mar in area bound by…Brazil-south Coast
- HYDROLANT 678/132013-03-18 → 2013-03-25Cable laying operations in progress until 24 mar by M/V ile de batz along trackline between 24-01.97S…Brazil-southeast Coast
- HYDROLANT 662/132013-03-16 → 2013-03-17Seismic survey 16 mar by M/V wg tasman towing 12 8000 meter long cables along trackline between 36-22.80S…Western South Atlantic · Uruguay
- HYDROLANT 649/132013-03-14 → 2013-03-19Seismic survey in progress until 190159Z mar by M/V munin explorer in area bound by 21-58S 039-44W, 21-59S…Brazil-southeast Coast
- HYDROLANT 648/132013-03-14 → 2013-03-19Seismic survey in progress until 190159Z mar by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 647/132013-03-14 → 2013-03-19Seismic survey in progress until 190159Z mar by M/V western neptune towing 12 6000 meter long cables in area…Brazil-south Coast
- HYDROLANT 646/132013-03-14 → 2013-03-19Seismic survey in progress until 190159Z mar by M/V ramform viking towing ten 8100 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 645/132013-03-14 → 2013-03-19Seismic survey by M/V ramform soveriegn towing 12 five mile long cables: a. in progress until 160159Z mar in…Brazil-south Coast
- HYDROLANT 644/132013-03-14 → 2013-03-19Seismic survey in progress until 190159Z mar by M/V sanco star and M/V ocean europe towing three 200 meter…Brazil-southeast Coast
- HYDROLANT 643/132013-03-14 → 2013-03-15Seismic survey 14 mar by M/V wg tasman towing 12 8000 meter long cables along trackline between 36-23.07S…Western South Atlantic · Uruguay
- HYDROLANT 636/132013-03-14 → 2013-03-18Seismic survey in progress until 17 mar by M/V ramform vanguard towing 12 8300 meter long cables in area…Brazil-south Coast
- HYDROLANT 634/132013-03-13 → 2013-03-19Seismic survey by M/V hawk explorer towing 12000 meter long cables: a. in progress along trackline joining…Brazil-south Coast
- HYDROLANT 622/132013-03-12 → 2013-03-14Seismic survey in progress until 13 mar by M/V wg tasman towing 12 8000 meter long cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 616/132013-03-11 → 2013-03-18Cable laying operations in progress until 24 mar by cableship ile de batz along trackline between 27-01.97S…Brazil-southeast Coast
- HYDROLANT 606/132013-03-10 → 2013-03-12Seismic survey in progress until 11 mar by M/V wg tasman towing 12 8000 meter long cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 605/132013-03-10 → 2013-03-11Seismic survey 10 mar by M/V wg tasman towing 12 8000 meter long cables along trackline between 35-46.95S…Western South Atlantic · Uruguay
- HYDROLANT 604/132013-03-10 → 2013-03-12Seismic survey in progress until 120159Z mar by M/V sanco star and M/V ocean europe towing three 200 meter…Brazil-southeast Coast
- HYDROLANT 603/132013-03-10 → 2013-03-12Seismic survey in progress until 120159Z mar by M/V ramform soveriegn towing 12 five mile long cables in…Brazil-south Coast
- HYDROLANT 602/132013-03-10 → 2013-03-12Seismic survey in progress until 120159Z mar M/V ramform viking towing ten 8100 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 601/132013-03-10 → 2013-03-12Seismic survey in progress until 120159Z mar by M/V nps wg cook towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 600/132013-03-09 → 2013-03-12Seismic survey in progress until 120159Z mar by M/V western neptune towing 12 6000 meter long cables in area…Brazil-south Coast
- HYDROLANT 596/132013-03-09 → 2013-03-14Seismic survey by M/V hawk explorer towing 12000 meter long cables: a. 09 mar along trackline joining…Brazil-south Coast
- HYDROLANT 590/132013-03-08 → 2013-03-10Seismic survey by M/V wg tasman towing 12 8000 meter long cables: a. 08 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 585/132013-03-08 → 2013-03-25Seismic survey in progress until further notice by M/V sanco spirit towing 8100 meter long cable in area…Eastern South Atlantic · Namibia
- HYDROLANT 584/132013-03-07 → 2013-03-09Seismic survey by M/V hawk explorer towing 12000 meter long cables: a. 07 mar along trackline joining…Brazil-south Coast
- HYDROLANT 580/132013-03-06 → 2013-03-14Cable repair operations 071800Z to 141800Z mar by cableship peter faber vicinity 05-58.2S 012-12.9EEastern South Atlantic · Angola
- HYDROLANT 571/132013-03-05 → 2013-03-07Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 05 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 568/132013-03-05 → 2013-03-05Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 04 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 557/132013-03-02 → 2013-03-05Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 02 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 556/132013-03-02 → 2013-03-04Seismic survey in progress until 03 mar by M/V wg tasman towing 12 8000 meter long cables along trackline…Western South Atlantic · Uruguay
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.