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 550/132013-03-02 → 2013-03-02Seismic survey in progress until further notice by M/V wg tasman towing 12 8000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 546/132013-03-02 → 2013-03-08Seismic survey by M/V hawk explorer towing 12000 meter long cables: a. 02 mar along trackline joining…Brazil-south Coast
- HYDROLANT 538/132013-03-01 → 2013-03-06Seismic survey in progress until 060159Z mar by M/V sanco star and M/V ocean europe towing three 200 meter…Brazil-southeast Coast
- HYDROLANT 537/132013-03-01 → 2013-03-06Seismic survey in progress until 060159Z mar by M/V ramform soveriegn towing 12 five mile long cables in…Brazil-south Coast
- HYDROLANT 536/132013-03-01 → 2013-03-06Seismic survey in progress until 060159Z mar M/V ramform viking towing ten 8100 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 535/132013-03-01 → 2013-03-06Seismic survey in progress until 060159Z mar by M/V nps wg cook towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 534/132013-03-01 → 2013-03-06Seismic survey in progress until 060159Z mar by M/V western neptune towing 12 8000 meter long cables in area…Brazil-south Coast
- HYDROLANT 529/132013-02-27 → 2013-02-28Seismic survey 27 feb by M/V ramform vanguard towing 12 7000 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 515/132013-02-25 → 2013-02-26Seismic survey 25 feb by M/V wg tasman towing 12 8800 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 514/132013-02-25 → 2013-02-27Seismic survey 25 and 26 feb by M/V ramform vanguard towing 12 7000 meter long cables along tracklines…Western South Atlantic · Uruguay
- HYDROLANT 513/132013-02-25 → 2013-03-02Seismic survey by M/V hawk explorer towing 10.5 mile long cables: a. 25 feb along trackline joining…Brazil-south Coast
- HYDROLANT 506/132013-02-23 → 2013-02-25Seismic survey by M/V wg tasman towing 12 8800 meter long cables: a. 23 and 24 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 499/132013-02-23 → 2013-02-25Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 23 and 24 feb along trackline…Western South Atlantic · Uruguay
- HYDROLANT 498/132013-02-23 → 2013-02-24Seismic survey 23 feb by M/V wg tasman towing 12 8800 meter long cables along trackline between 35-47.72S…Western South Atlantic · Uruguay
- HYDROLANT 491/132013-02-22 → 2013-03-08Seismic survey in progress until further notice by M/V sanco spirit towing 8100 meter long cable in area…Eastern South Atlantic · Namibia
- HYDROLANT 486/132013-02-21 → 2013-02-23Seismic survey 21 and 22 feb by M/V wg tasman towing 12 8800 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 477/132013-02-21 → 2013-02-28Seismic survey 210200Z to 280159Z feb by M/V sanco star and M/V ocean europe towing three 200 meter long…Brazil-southeast Coast
- HYDROLANT 476/132013-02-21 → 2013-02-28Seismic survey 210200Z to 280159Z feb by M/V ramform soveriegn towing 12 five mile long cables in area bound…Brazil-south Coast
- HYDROLANT 475/132013-02-21 → 2013-02-28Seismic survey 210200Z feb to 280159Z feb by M/V ramform viking towing ten 8100 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 474/132013-02-21 → 2013-02-28Seismic survey 210200Z to 280159Z feb by M/V nps wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 473/132013-02-21 → 2013-02-28Seismic survey 210200Z to 280159Z feb by M/V western neptune towing 12 8000 meter long cables in area bound…Brazil-south Coast
- HYDROLANT 467/132013-02-20 → 2013-02-22Seismic survey by M/V wg tasman towing 12 8800 meter long cables: a. 20 feb along trackline between 36-24.4S…Western South Atlantic · Uruguay
- HYDROLANT 466/132013-02-20 → 2013-02-23Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 19 and 20 feb along trackline…Western South Atlantic · Uruguay
- HYDROLANT 450/132013-02-19 → 2013-02-20Seismic survey in progress until 20 feb by M/V wg tasman towing 12 8800 meter long cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 442/132013-02-18 → 2013-02-20Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 18 and 19 feb along trackline…Western South Atlantic · Uruguay
- HYDROLANT 440/132013-02-17 → 2013-02-19Seismic survey by M/V wg tasman towing 12 8800 meter long cables: a. 17 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 431/132013-02-16 → 2013-02-18Seismic survey in progress until 17 feb by M/V ramform vanguard towing 12 7000 meter long cables along…Western South Atlantic · Uruguay
- HYDROLANT 430/132013-02-16 → 2013-02-17Seismic survey 16 feb by M/V wg tasman towing 12 8800 meter long cables along trackline between 36-25.15S…Western South Atlantic · Uruguay
- HYDROLANT 429/132013-02-16 → 2013-02-21Seismic survey in progress until 210159Z feb by M/V western neptune towing 12 8000 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 428/132013-02-16 → 2013-02-21Seismic survey in progress until 210159Z feb by M/V ramform soveriegn towing 12 five mile long cables in…Brazil-south Coast
- HYDROLANT 427/132013-02-16 → 2013-02-21Seismic survey 160200Z to 210159Z feb by M/V wg cook towing 12 five mile long cables in area bound by 25-05S…Brazil-south Coast
- HYDROLANT 426/132013-02-16 → 2013-02-21Seismic survey 160200Z to 210159Z feb by M/V sanco spirit towing equipment in area bound by 21-11.83S…Brazil-southeast Coast
- HYDROLANT 425/132013-02-16 → 2013-02-21Seismic survey 160200Z to 210159Z feb by M/V sanco star and M/V ocean europe towing three 200 meter long…Brazil-southeast Coast
- HYDROLANT 424/132013-02-16 → 2013-02-21Seismic survey 160200Z to 210259Z feb by M/V ramform viking towing ten 8100 meter long cables in area bound…Brazil-southeast Coast
- HYDROLANT 421/132013-02-15 → 2013-02-17Seismic survey in progress until 16 feb by M/V wg tasman towing 12 8800 meter long cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 412/132013-02-15 → 2013-02-19Seismic survey by M/V hawk explorer towing 10.5 mile long cables: a. 15 and 16 feb along trackline joining…Brazil-south Coast
- HYDROLANT 409/132013-02-14 → 2013-02-15Seismic survey 14 feb by M/V wg tasman towing 12 8000 meter long cables along trackline between 36-25.40S…Western South Atlantic · Uruguay
- HYDROLANT 399/132013-02-13 → 2013-02-16Seismic survey in progress until 160159Z feb by M/V ramform soveriegn towing 12 five mile long cables in…Brazil-south Coast
- HYDROLANT 396/132013-02-13 → 2013-02-25Cable laying operations 14 thru 24 feb by cableship ile de batz along trackline between 13-00.81S 038-27.13W…Brazil-east Coast
- HYDROLANT 395/132013-02-12 → 2013-02-16Seismic survey in progress until 160159Z feb by M/V western neptune towing 12 8600 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 384/132013-02-12 → 2013-02-14Seismic survey in progress until 13 feb by M/V ramform vanguard towing 12 7000 meter long cables along…Western South Atlantic · Uruguay
- HYDROLANT 383/132013-02-12 → 2013-02-13Seismic survey 12 feb by M/V wg tasman towing 12 8000 meter long cables along trackline between 35-49.23S…Western South Atlantic · Uruguay
- HYDROLANT 373/132013-02-11 → 2013-02-12Seismic survey 11 feb by M/V wg tasman towing 12 8000 meter long cables along trackline between 36-38.23S…Western South Atlantic · Uruguay
- HYDROLANT 369/132013-02-09 → 2013-02-12Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 09 feb along tracklines between:…Western South Atlantic · Uruguay
- HYDROLANT 367/132013-02-09 → 2013-02-11Seismic survey by M/V wg tasman towing 12 8000 meter long cables: a. 09 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 366/132013-02-09 → 2013-02-10Seismic survey 09 feb by M/V ramform vanguard towing 12 7000 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 362/132013-02-08 → 2013-02-16Seismic survey 090200Z to 160159Z feb by M/V ramform viking towing ten 8100 meter long cables in area bound…Brazil-southeast Coast
- HYDROLANT 359/132013-02-08 → 2013-02-16Seismic survey 090200Z to 160159Z feb by M/V sanco star and M/V ocean europe towing three 200 meter long…Brazil-southeast Coast
- HYDROLANT 358/132013-02-08 → 2013-02-16Seismic survey 090200Z to 160159Z feb by M/V sanco spirit towing equipment in area bound by 21-11.83S…Brazil-southeast Coast
- HYDROLANT 357/132013-02-08 → 2013-02-09Seismic survey 090200Z to 160159Z feb by M/V ramform soveriegn towing 12 five mile long cables in area bound…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.