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 1254/142014-05-17 → 2014-05-24Seismic survey 170200Z to 240159Z may by M/V oceanic champion towing 12 five mile long cables in area bound…Brazil-east Coast
- HYDROLANT 1190/142014-05-11 → 2014-05-17Seismic survey in progress until 170159Z may by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1113/142014-04-30 → 2014-05-10Seismic survey in progress until 100159Z may by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1083/142014-04-25 → 2014-04-30Seismic survey in progress until 030159Z may by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1076/142014-04-24 → 2014-04-25Seismic survey in progress until 250159Z apr by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1048/142014-04-19 → 2014-04-24Seismic survey in progress until 030159Z may by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1026/142014-04-16 → 2014-08-20Seismic survey in progress until further notice by M/V polarcus asima towing 9000 meter long cable in area…Eastern South Atlantic · Namibia
- HYDROLANT 974/142014-04-10 → 2014-05-26Seismic survey 04 apr thru 25 may by M/V l'atalante towing 4850 meter long cable in area bound by 09-06.00S…Brazil-east Coast
- HYDROLANT 970/142014-04-09 → 2014-08-01Seismic survey in progress until 31 jul by M/V bgp pioneer towing six four mile long cables in area bound by…Eastern South Atlantic · Gabon
- HYDROLANT 926/142014-04-05 → 2014-04-19Seismic survey in progress until 190159Z apr by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 833/142014-03-24 → 2014-04-30Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 823/142014-03-23 → 2014-03-25Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 23 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 817/142014-03-22 → 2014-03-23Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 814/142014-03-22 → 2014-04-05Seismic survey 220200Z mar to 050159Z apr by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 806/142014-03-21 → 2014-03-22Seismic survey 21 mar by M/V ramform vanguard towing 12 7000 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 773/142014-03-17 → 2014-03-21Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 753/142014-03-15 → 2014-03-17Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 15 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 747/142014-03-15 → 2014-03-22Seismic survey 150200Z to 220159Z mar by M/V oceanic champion towing 12 five mile long cables in area bound…Brazil-southeast Coast
- HYDROLANT 734/142014-03-13 → 2014-03-16Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 13 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 729/142014-03-13 → 2014-03-23Seismic survey in progress until 22 mar by M/V bgp explorer towing three four mile long cables in area bound…Eastern South Atlantic · Gabon
- HYDROLANT 718/142014-03-11 → 2014-03-15Seismic survey in progress until 150159Z mar by M/V sanco swift towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 717/142014-03-11 → 2014-03-13Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 11 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 712/142014-03-10 → 2014-03-11Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 10 and 11 mar along trackline…Western South Atlantic · Uruguay
- HYDROLANT 697/142014-03-08 → 2014-03-11Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 08 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 688/142014-03-07 → 2014-03-09Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 07 and 08 mar along trackline…Western South Atlantic · Uruguay
- HYDROLANT 675/142014-03-06 → 2014-03-09Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 06 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 654/142014-03-04 → 2014-03-06Seismic survey in progress by M/V ramform vanguard towing 12 7000 meter long cables: a. 04 mar along…Western South Atlantic · Uruguay
- HYDROLANT 649/142014-03-04 → 2014-03-05Seismic survey 04 mar by M/V ramform vanguard towing 12 7000 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 635/142014-03-02 → 2014-03-04Seismic survey 02 and 03 mar by M/V ramform vanguard towing 12 7000 meter long cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 631/142014-03-02 → 2014-03-15Seismic survey in progress until 150159Z mar by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 630/142014-03-02 → 2014-03-11Seismic survey in progress until 150159Z mar by M/V sanco swift towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 621/142014-02-28 → 2014-03-03Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 28 feb and 01 mar along…Western South Atlantic · Uruguay
- HYDROLANT 601/142014-02-26 → 2014-02-28Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 25 and 26 feb along trackline…Western South Atlantic · Uruguay
- HYDROLANT 581/142014-02-25 → 2014-04-10Seismic survey in progress until 10 aug by M/V ocean endeavour towing 12 five mile long cables in area bound…Western South Atlantic · Brazil
- HYDROLANT 576/142014-02-24 → 2014-02-26Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 24 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 564/142014-02-23 → 2014-02-25Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 23 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 558/142014-02-22 → 2014-02-24Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 22 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 553/142014-02-22 → 2014-03-01Seismic survey in progress until 010159Z mar by M/V sanco swift towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 552/142014-02-22 → 2014-03-01Seismic survey in progress until 010159Z mar by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 531/142014-02-21 → 2014-04-06Seismic survey in progress until further notice by M/V western regent towing ten 9260 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 530/142014-02-21 → 2014-02-23Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 21 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 505/142014-02-19 → 2014-02-21Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 19 and 20 feb along trackline…Western South Atlantic · Uruguay
- HYDROLANT 486/142014-02-17 → 2014-02-19Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 17 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 470/142014-02-15 → 2014-02-17Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 15 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 469/142014-02-15 → 2014-02-16Seismic survey 15 feb by M/V western regent towing ten 9260 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 463/142014-02-15 → 2014-02-22Seismic survey 150200Z to 220159Z feb by M/V sanco swift towing 12 five mile long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 462/142014-02-15 → 2014-02-22Seismic survey 150200Z to 220159Z feb by M/V oceanic champion towing 12 five mile long cables in area bound…Brazil-southeast Coast
- HYDROLANT 452/142014-02-14 → 2014-02-17Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 14 feb along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 451/142014-02-13 → 2014-02-17Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 13 and 14 feb along trackline…Western South Atlantic · Uruguay
- HYDROLANT 448/142014-02-13 → 2014-02-14Seismic survey in progress until further notice by M/V western regent towing ten 9260 meter long cables in…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.