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 434/142014-02-12 → 2014-02-14Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 12 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 428/142014-02-11 → 2014-02-12Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 11 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 427/142014-02-11 → 2014-02-12Seismic survey 11 feb by M/V western regent towing ten 9260 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 415/142014-02-10 → 2014-02-12Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 10 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 414/142014-02-10 → 2014-02-12Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 10 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 410/142014-02-09 → 2014-02-10Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 09 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 406/142014-02-09 → 2014-02-10Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 09 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 401/142014-02-08 → 2014-02-09Seismic survey 08 feb by M/V western regent towing ten 9260 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 393/142014-02-08 → 2014-02-15Seismic survey 080200Z to 150159Z feb by M/V oceanic champion towing 12 five mile long cables in area bound…Brazil-southeast Coast
- HYDROLANT 392/142014-02-08 → 2014-02-15Seismic survey 080200Z to 150159Z feb by M/V sanco swift towing 12 five mile long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 391/142014-02-07 → 2014-02-10Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 08 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 388/142014-02-07 → 2014-02-09Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 07 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 381/142014-02-07 → 2014-02-07Pipeline operations in progress until 072000Z feb by tug varada ipanema within two miles of 03-40.11S…Brazil-north Coast
- HYDROLANT 373/142014-02-06 → 2014-02-08Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 06 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 372/142014-02-06 → 2014-02-07Seismic survey 06 feb by M/V western regent towing ten 9260 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 361/142014-02-06 → 2014-02-06Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 06 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 347/142014-02-04 → 2014-02-06Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 04 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 336/142014-02-03 → 2014-02-05Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 03 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 325/142014-02-03 → 2014-02-03Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 03 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 324/142014-02-03 → 2014-02-05Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 03 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 304/142014-02-01 → 2014-02-03Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 01 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 300/142014-01-31 → 2014-02-02Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 31 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 298/142014-01-31 → 2014-02-08Seismic survey 010200Z to 080159Z feb by M/V oceanic champion towing 12 five mile long cables in area bound…Brazil-southeast Coast
- HYDROLANT 297/142014-01-31 → 2014-02-08Seismic survey 010200Z to 080159Z feb by M/V nps sanco swift towing 12 five mile long cables in area bound…Brazil-southeast Coast
- HYDROLANT 280/142014-01-30 → 2014-01-31Seismic survey 30 jan by M/V western regent towing ten 9260 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 268/142014-01-29 → 2014-02-01Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 29 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 267/142014-01-29 → 2014-01-31Seismic survey 29 and 30 jan by M/V western regent towing ten 9260 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 260/142014-01-28 → 2014-03-07Seismic survey in progress until further notice by M/V polarcus nadia in area bound by 01-12S 008-48E,…Eastern South Atlantic · Gabon
- HYDROLANT 258/142014-01-28 → 2014-01-29Seismic survey in progress until further notice by M/V western regent towing ten 9260 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 253/142014-01-27 → 2014-01-28Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 27 and 28 jan along trackline…Western South Atlantic · Uruguay
- HYDROLANT 252/142014-01-27 → 2014-01-29Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 27 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 247/142014-01-27 → 2014-01-27Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 27 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 246/142014-01-26 → 2014-01-27Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 26 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 245/142014-01-26 → 2014-01-27Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 27 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 238/142014-01-25 → 2014-01-26Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 234/142014-01-25 → 2014-02-01Seismic survey in progress until 010159Z feb by M/V nps sanco swift towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 233/142014-01-25 → 2014-02-01Seismic survey in progress until 010159Z feb by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 227/142014-01-24 → 2014-01-27Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 24 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 217/142014-01-23 → 2014-01-23Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 23 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 211/142014-01-22 → 2014-01-24Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 22 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 203/142014-01-21 → 2014-01-24Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 21 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 202/142014-01-21 → 2014-01-23Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 21 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 189/142014-01-19 → 2014-01-21Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 19 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 187/142014-01-18 → 2014-01-20Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 18 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 183/142014-01-18 → 2014-01-25Seismic survey in progress until 250159Z jan by M/V nps sanco swift towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 179/142014-01-17 → 2014-01-20Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 17 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 168/142014-01-16 → 2014-01-18Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 16 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 167/142014-01-16 → 2014-01-19Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 16 and 17 jan along trackline…Western South Atlantic · Uruguay
- HYDROLANT 136/142014-01-14 → 2014-01-16Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 14 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 135/142014-01-14 → 2014-01-17Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 14 jan 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.