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 · 50 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 2526/152015-10-10 → 2016-01-15Seismic survey in progress until 10 feb 16 by M/V ramform atlas towing 14 9000 meter long cables in area…Brazil-north Coast
- HYDROLANT 2298/152015-09-16 → 2015-10-10Seismic survey in progress until 10 feb 16 by M/V ramform atlas towing 14 1400 meter long cables in area…Brazil-north Coast
- HYDROLANT 2240/152015-09-10 → 2015-09-16Seismic survey in progress until 10 feb 16 by M/V ramform atlas towing 14 9000 meter long cables in area…Brazil-north Coast
- HYDROLANT 1573/152015-06-26 → 2015-07-02Seismic survey in progress until further notice by M/V cgg alize towing five mile long cables in areas bound…South Atlantic
- HYDROLANT 1098/152015-05-05 → 2015-05-16Seismic survey in progress until 152359Z may by M/V geo caribbean towing ten 11500 meter long cables in area…Eastern South Atlantic · Gabon
- HYDROLANT 1089/152015-05-04 → 2015-06-17Seismic survey in progress until 16 jun by M/V endeavor towing 5.5 mile long cable in area bound by…Eastern South Atlantic · Angola
- HYDROLANT 1043/152015-04-30 → 2015-05-05Seismic survey in progress until further notice by M/V geo caribbean towing ten 11500 meter long cables in…Eastern South Atlantic · Gabon
- HYDROLANT 896/152015-04-15 → 2015-05-16Pipeline operations in progress until 15 may by M/V oceanica sub II and M/V ankh along trackline joining…Brazil-north Coast
- HYDROLANT 842/152015-04-10 → 2015-04-15Pipeline operations in progress until 15 apr by M/V oceanica sub II and M/V ankh along trackline joining…Brazil-north Coast
- HYDROLANT 619/152015-03-14 → 2015-03-29Seismic survey in progress until 282359Z mar by M/V western trident towing 12000 meter long cable in areas…South Atlantic · Eastern South Atlantic · Eastern North Atlantic
- HYDROLANT 616/152015-03-14 → 2015-04-10Pipeline operations in progress until 15 apr by M/V oceanica sub II along trackline joining 03-40.66S…Brazil-north Coast
- HYDROLANT 607/152015-03-13 → 2015-03-14South atlanticSouth Atlantic
- HYDROLANT 580/152015-03-10 → 2015-03-19Seismic survey in progress until further notice by M/V bgp pioneer towing five mile long cable in area bound…Eastern South Atlantic · Namibia
- HYDROLANT 444/152015-02-23 → 2015-03-26Cable repair operations 23 feb thru 25 mar by M/V teneo vicinity of trackline joining 13-00.42S 038-27.59W,…Brazil-east Coast
- HYDROLANT 423/152015-02-18 → 2015-03-12Seismic survey 19 feb until further notice by M/V northern explorer in area bound by 24-33S 012-13E, 22-58S…Eastern South Atlantic · Namibia
- HYDROLANT 422/152015-02-18 → 2015-02-18Seismic survey 19 feb until further notice by M/V northern explorer in area bound by 22-40S 011-50E, 22-40S…Eastern South Atlantic · Namibia
- HYDROLANT 404/152015-02-16 → 2015-02-18Seismic survey 17 feb thru 04 mar by M/V northern explorer in area bound by 24-33S 012-13E, 22-58S 011-47E,…Eastern South Atlantic · Namibia
- HYDROLANT 307/152015-02-06 → 2015-02-28Seismic survey in progress until further notice by M/V polarcus nadia towing 9260 meter long cables in area…Eastern South Atlantic · Gabon
- HYDROLANT 300/152015-02-05 → 2015-04-05Seismic survey in progress until 04 apr by M/V nps sigma in area bound by 21-01.00S 039-44.08W, 21-11.63S…Brazil-southeast Coast
- HYDROLANT 217/152015-01-26 → 2015-03-14Pipeline operations 29 jan to 13 mar by M/V oceanica sub II along trackline between 03-40.66S 038-27.62W,…Brazil-north Coast
- HYDROLANT 3157/142014-12-28 → 2014-12-28Seismic survey in progress until further notice by M/V bgp challenger towing 12000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 3143/142014-12-26 → 2014-12-27Seismic survey 26 dec by M/V bgp challenger towing 12000 meter long cables along trackline between 38-39.33S…Western South Atlantic · Uruguay
- HYDROLANT 3126/142014-12-23 → 2014-12-26Seismic survey by M/V bgp challenger towing 12000 meter long cables: a. 23 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3098/142014-12-20 → 2014-12-23Seismic survey by M/V bgp challenger towing 12000 meter long cables: a. 20 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3040/142014-12-13 → 2014-12-20Seismic survey in progress until 200159Z dec by M/V ramform viking towing 12 5100 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 3034/142014-12-12 → 2014-12-14Seismic survey by M/V bgp challenger towing 12000 meter long cable: a. 12 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3027/142014-12-11 → 2015-03-08Seismic survey in progress until further notice by M/V bgp pioneer towing 11000 meter long cable in area…Eastern South Atlantic · Namibia
- HYDROLANT 3012/142014-12-10 → 2014-12-12Seismic survey in progress until 11 dec by M/V bgp challenger towing 12000 meter long cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 2988/142014-12-07 → 2014-12-10Seismic survey by M/V bgp challenger towing 12000 meter long cables: a. 07 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2979/142014-12-06 → 2014-12-13Seismic survey in progress until 130159Z dec by M/V ramform viking towing 12 5100 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 2978/142014-12-06 → 2014-12-07Seismic survey in progress until 08 dec by M/V bgp challenger towing 12000 meter long cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 2944/142014-12-03 → 2014-12-06Seismic survey by M/V bgp challenger towing 12000 meter long cables: a. 03 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2924/142014-12-01 → 2014-12-03Seismic survey by M/V bgp challenger towing 12000 meters long cables: a. 01 dec along trackline between…Western South Atlantic · Argentina
- HYDROLANT 2913/142014-11-30 → 2014-12-01Seismic survey by M/V bgp challenger towing 12000 long cables: a. 30 nov along trackline between 37-43.22S…Western South Atlantic · Argentina
- HYDROLANT 2893/142014-11-28 → 2014-12-06Seismic survey 290200Z nov to 060159Z dec by M/V ramform viking towing 12 9500 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 2892/142014-11-28 → 2014-11-30Seismic survey by M/V bgp challenger towing 12000 long cables: a. 28 nov along trackline between 36-54.62S…Western South Atlantic · Uruguay
- HYDROLANT 2873/142014-11-26 → 2015-04-28Seismic survey in progress until further notice by M/V ramform valiant in area bound by 13-38.0S 012-32.0E,…Eastern South Atlantic · Angola
- HYDROLANT 2871/142014-11-26 → 2014-11-28Seismic survey by M/V bgp challenger towing 12000 long cables: a. 26 nov along trackline between 37-15.40S…Western South Atlantic · Uruguay
- HYDROLANT 2851/142014-11-24 → 2014-11-26Seismic survey by M/V bgp challenger towing 12000 meter long cables: a. 24 and 25 nov along trackline…Western South Atlantic · Uruguay
- HYDROLANT 2836/142014-11-22 → 2014-11-24Seismic survey by M/V bgp challenger towing 12000 meter long cables: a. 22 and 23 nov along trackline…Western South Atlantic · Uruguay
- HYDROLANT 2831/142014-11-21 → 2014-11-28Seismic survey 220200Z to 290159Z nov by M/V ramform viking towing 12 9500 meter long cables in area bound…Brazil-southeast Coast
- HYDROLANT 2817/142014-11-20 → 2014-11-22Seismic survey in progress until 220159Z nov by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 2815/142014-11-20 → 2014-11-23Seismic survey by M/V bgp challenger towing 12000 meter long cables: a. 20 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2805/142014-11-19 → 2014-11-20Seismic survey by M/V bgp challenger towing 12000 meter long cables: a. 19 nov along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2792/142014-11-18 → 2014-11-19Seismic survey 18 nov by M/V bgp challenger towing 12000 meter long cables along trackline between 35-45.68S…Western South Atlantic · Uruguay
- HYDROLANT 2772/142014-11-16 → 2014-11-17Seismic survey 16 nov by M/V bgp challenger towing 12000 meter long cables along trackline between 35-32.92S…Western South Atlantic · Uruguay
- HYDROLANT 2755/142014-11-15 → 2014-11-20Seismic survey in progress until 220159Z nov by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 2753/142014-11-14 → 2014-11-22Seismic survey 150200Z to 220159Z nov by M/V ramform viking towing 12 9500 meter long cables in area bound…Brazil-southeast Coast
- HYDROLANT 2743/142014-11-14 → 2014-11-16Seismic survey 13 thru 15 nov by M/V bgp challenger towing 12000 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2736/142014-11-13 → 2014-11-14Seismic survey by M/V bgp challenger towing 12000 meter long cables: a. 13 nov along trackline between…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.