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 1143/132013-05-08 → 2013-05-10Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 08 may along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1138/132013-05-07 → 2013-05-09Cable laying operations in progress until 08 may by M/V ile de batz along trackline joining 02-36.38S…Brazil-northeast Coast
- HYDROLANT 1124/132013-05-05 → 2013-05-07Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 05 may along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1117/132013-05-04 → 2013-05-11Seismic survey in progress until 110259Z may by M/V ramform viking towing ten 8100 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 1116/132013-05-04 → 2013-05-11Seismic survey in progress until 110259Z may by M/V western neptune towing 12 10000 meter long cables in…Brazil-south Coast
- HYDROLANT 1115/132013-05-04 → 2013-05-11Seismic survey in progress until 110259Z may by M/V sanco star in area bound by 22-14.40S 040-04.10W,…Brazil-southeast Coast
- HYDROLANT 1114/132013-05-04 → 2013-05-11Seismic survey in progress until 110259Z may by M/V ocean europe towing three 200 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 1111/132013-05-03 → 2013-05-06Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 03 and 04 may along trackline…Western South Atlantic · Uruguay
- HYDROLANT 1100/132013-05-01 → 2013-05-04Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 01 may along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1081/132013-04-30 → 2013-05-02Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables 30 apr and 01 may along tracklines…Western South Atlantic · Uruguay
- HYDROLANT 1063/132013-04-28 → 2013-04-30Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 28 apr along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1055/132013-04-27 → 2013-05-04Seismic survey in progress until 040259Z may by M/V western neptune towing 12 6000 meter long cables in area…Brazil-south Coast
- HYDROLANT 1054/132013-04-27 → 2013-05-04Seismic survey in progress until 040259Z may by M/V ocean europe towing three 200 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 1053/132013-04-27 → 2013-05-04Seismic survey in progress until 040259Z may by M/V sanco star in area bound by 22-14.40S 040-04.10W,…Brazil-southeast Coast
- HYDROLANT 1052/132013-04-27 → 2013-05-04Seismic survey in progress until 040259Z may by M/V ramform viking towing ten 8100 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 1039/132013-04-26 → 2013-04-28Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 26 apr along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1036/132013-04-25 → 2013-05-17Seismic survey in progress until further notice by M/V osprey explorer towing 8100 meter long cable in area…Eastern South Atlantic · Namibia
- HYDROLANT 1023/132013-04-24 → 2013-04-26Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 24 apr along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1007/132013-04-22 → 2013-04-24Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 22 apr along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1002/132013-04-21 → 2013-04-22Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 21 apr along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1001/132013-04-21 → 2013-04-22Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 992/132013-04-20 → 2013-04-27Seismic survey 200300Z to 270259Z apr by M/V ocean europe towing three 200 meter long cables in area bound…Brazil-southeast Coast
- HYDROLANT 991/132013-04-20 → 2013-04-27Seismic survey 200300Z to 270259Z apr by M/V western neptune towing 12 6000 meter long cables in area bound…Brazil-south Coast
- HYDROLANT 990/132013-04-20 → 2013-04-27Seismic survey 200300Z to 270259Z apr by M/V ramform viking towing ten 8100 meter long cables in area bound…Brazil-southeast Coast
- HYDROLANT 944/132013-04-14 → 2013-04-20Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 937/132013-04-13 → 2013-04-20Seismic survey 130300Z to 200259Z apr by M/V ramform viking towing ten 8100 meter long cables in area bound…Brazil-southeast Coast
- HYDROLANT 936/132013-04-13 → 2013-04-20Seismic survey 130300Z to 200259Z apr by M/V sanco star towing three 200 meter long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 934/132013-04-13 → 2013-04-20Seismic survey 130300Z apr to 200259Z apr by M/V ocean europe towing three 200 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 933/132013-04-13 → 2013-04-20Seismic survey 130300Z to 200259Z apr by M/V western neptune towing 12 6000 meter long cables in area bound…Brazil-south Coast
- HYDROLANT 905/132013-04-11 → 2013-04-23Cable laying operations in progress until 22 apr by M/V ile de batz along trackline joining 03-44.95S…Brazil-northeast Coast
- HYDROLANT 896/132013-04-10 → 2013-04-13Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 10 apr along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 879/132013-04-08 → 2013-06-07Seismic survey in progress until further notice by M/V ramform valiant and M/V nordic explorer towing 12…Eastern South Atlantic · South Africa
- HYDROLANT 878/132013-04-08 → 2013-04-10Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 08 and 09 apr along trackline…Western South Atlantic · Uruguay
- HYDROLANT 871/132013-04-06 → 2013-05-01Seismic survey in progress until 30 apr by M/V boa galatea towing 5.4 mile long cables in area bound by…Brazil-north Coast
- HYDROLANT 870/132013-04-06 → 2013-04-11Seismic survey by M/V hawk explorer towing 12000 meter long cables: a. in progress until 08 apr along…Brazil-south Coast
- HYDROLANT 859/132013-04-04 → 2013-04-06Seismic survey in progress until 30 apr by M/V boa galatea towing 5.4 mile long cables in area bound by…Brazil-north Coast
- HYDROLANT 852/132013-04-04 → 2013-04-13Seismic survey 060300Z to 130259Z apr by M/V western neptune towing 12 6000 meter long cables in area bound…Brazil-south Coast
- HYDROLANT 851/132013-04-04 → 2013-04-13Seismic survey 060300Z to 130259Z apr by M/V ramform soverign towing 12 five mile long cables in area bound…Brazil-south Coast
- HYDROLANT 850/132013-04-04 → 2013-04-13Seismic survey 060300Z to 130259Z apr by M/V sanco star towing three 200 meter long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 849/132013-04-04 → 2013-04-13Seismic survey 060300Z to 130259Z apr by M/V ramform viking towing ten 8100 meter long cables in area bound…Brazil-southeast Coast
- HYDROLANT 843/132013-04-03 → 2013-04-07Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 03 apr along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 842/132013-04-03 → 2013-04-03Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 03 and 04 apr along trackline…Western South Atlantic · Uruguay
- HYDROLANT 837/132013-04-03 → 2013-04-03Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 03 and 04 apr along trackline…Western South Atlantic · Uruguay
- HYDROLANT 831/132013-04-01 → 2013-04-03Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 01 apr along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 809/132013-03-30 → 2013-04-01Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 30 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 805/132013-03-29 → 2013-04-02Seismic survey by M/V hawk explorer towing 12000 meter long cables: a. in progress until 30 mar in area…Brazil-south Coast
- HYDROLANT 800/132013-03-28 → 2013-03-30Seismic survey by M/V wg tasman towing 12 8800 meter long cables: a. 28 mar along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 795/132013-03-28 → 2013-04-06Seismic survey in progress until 060259Z apr by M/V ocean europe towing three 200 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 794/132013-03-28 → 2013-04-06Seismic survey in progress until 060259Z apr by M/V western neptune towing 12 6000 meter long cables in area…Brazil-south Coast
- HYDROLANT 792/132013-03-28 → 2013-04-06Seismic survey in progress until 060259Z apr by M/V ramform viking towing ten 8100 meter long cables in area…Brazil-southeast 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.