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 1238/122012-06-09 → 2012-06-14Seismic survey in progress until 13 jun by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 1224/122012-06-07 → 2012-06-16Seismic survey in progress until 160259Z jun by M/V nps wg cook towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 1223/122012-06-07 → 2012-06-16Seismic survey in progress until 160259Z jun by M/V nps veritas viking towing eight 3.5 mile long cables in…Brazil-south Coast
- HYDROLANT 1222/122012-06-07 → 2012-06-16Seismic survey in progress until 160259Z jun by M/V nps sanco star and M/V ocean europe towing 300 meter…Brazil-southeast Coast
- HYDROLANT 1221/122012-06-07 → 2012-06-16Seismic survey in progress until 160259Z jun by M/V nps ramform sovering towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 1214/122012-06-06 → 2012-06-11Seismic survey in progress until 10 jun by M/V discoverer in area bound by 31-45S 050-50W, 31-48S 050-50W,…Brazil-south Coast
- HYDROLANT 1206/122012-06-05 → 2012-06-06Seismic survey in progress until 05 jun by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 1186/122012-06-03 → 2012-06-05Seismic survey in progress until 05 jun by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 1185/122012-06-03 → 2012-06-07Seismic survey in progress until 090259Z jun by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1184/122012-06-03 → 2012-06-07Seismic survey in progress until 090259Z jun by M/V ramform sovering towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 1183/122012-06-03 → 2012-06-07Seismic survey in progress until 090259Z jun by M/V sanco star and M/V ocean europe towing 300 meter long…Brazil-southeast Coast
- HYDROLANT 1182/122012-06-03 → 2012-06-07Brazil-southeast coast 1. seismic survey in progress until 090259Z jun by M/V veritas viking towing eight…
- HYDROLANT 1154/122012-05-29 → 2012-06-02Seismic survey in progress until 020259Z jun by M/V nps ramform sovereing towing 14 8100 meter long cables…Brazil-south Coast
- HYDROLANT 1147/122012-05-29 → 2012-06-03Seismic survey in progress until 02 jun by M/V harrier explorer towing six mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 1129/122012-05-26 → 2012-06-02Seismic survey in progress until 020259Z jun by M/V nps wg cook towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 1128/122012-05-26 → 2012-05-29Seismic survey in progress until 020259Z jun by M/V nps ramform sovereing towing 14 8100 meter long cables…Brazil-south Coast
- HYDROLANT 1127/122012-05-26 → 2012-06-02Seismic survey in progress until 020259Z jun by M/V nps sanco star and M/V ocean europe towing 300 meter…Brazil-southeast Coast
- HYDROLANT 1126/122012-05-26 → 2012-06-02Seismic survey in progress until 020259Z jun by M/V veritas viking towing eight 3.5 mile long cables in area…Brazil-south Coast
- HYDROLANT 1125/122012-05-26 → 2012-06-02Seismic survey in progress until 020259Z jun by M/V nps oceanic phoenix towing 12 cables in area bound by…Brazil-southeast Coast
- HYDROLANT 1124/122012-05-26 → 2012-06-02Seismic survey in progress until 020259Z jun by M/V polar explorer towing 12 cables in area bound by…Brazil-southeast Coast
- HYDROLANT 1120/122012-05-26 → 2012-05-28Seismic survey in progress until 27 may by M/V harrier explorer towing six mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 1112/122012-05-25 → 2012-06-10Pipeline operations 1900Z to 0300Z commencing daily 26 may thru 09 jun by M/V gulmar atlantis along…Brazil-southeast Coast
- HYDROLANT 1103/122012-05-23 → 2012-05-26Seismic survey in progress until 25 may by M/V harrier explorer towing six mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 1095/122012-05-22 → 2012-05-26Seismic survey in progress until 260259Z may by M/V nps ramform sovereing towing 14 8100 meter long cables…Brazil-southeast Coast
- HYDROLANT 1088/122012-05-21 → 2012-05-25Pipeline operations 1700Z to 0300Z commencing daily 21 thru 31 may by M/V toisa pegasus along trackline…Brazil-southeast Coast
- HYDROLANT 1081/122012-05-20 → 2012-05-24Seismic survey in progress until 23 may by M/V harrier explorer towing 6.5 mile long cables in area bound by…Brazil-east Coast
- HYDROLANT 1079/122012-05-19 → 2012-05-26Seismic survey in progress until 260259Z may by M/V polar explorer towing 12 cables in area bound by…Brazil-southeast Coast
- HYDROLANT 1078/122012-05-19 → 2012-05-22Seismic survey in progress until 260259Z may by M/V nps oceanic phoenix in area bound by 23-40.27S…Brazil-southeast Coast
- HYDROLANT 1077/122012-05-19 → 2012-05-26Seismic survey in progress until 260259Z may by M/V nps veritas viking towing eight 3.5 mile long cables in…Brazil-south Coast
- HYDROLANT 1076/122012-05-19 → 2012-05-26Seismic survey in progress until 260259Z may by M/V nps sanco star and M/V ocean europe towing 300 meter…Brazil-southeast Coast
- HYDROLANT 1075/122012-05-19 → 2012-05-22Seismic survey in progress until 260259Z may by M/V nps ramform sovereing towing 14 8100 meter long cables…Brazil-south Coast
- HYDROLANT 1074/122012-05-19 → 2012-05-26Seismic survey in progress until 260259Z may by M/V nps wg cook towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 1032/122012-05-15 → 2012-05-19Seismic survey in progress until 190259Z may by M/V polar explorer towing 12 cables in area bound by…Brazil-southeast Coast
- HYDROLANT 1015/122012-05-12 → 2012-05-15Seismic survey in progress until 190259Z may by M/V nps wg cook towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1014/122012-05-12 → 2012-05-19Seismic survey in progress until 190259Z may by M/V nps oceanic phoenix in area bound by 23-38.47S…Brazil-southeast Coast
- HYDROLANT 1013/122012-05-12 → 2012-05-19Seismic survey in progress until 190259Z may by M/V nps veritas viking towing eight 3.5 mile long cables in…Brazil-south Coast
- HYDROLANT 1012/122012-05-12 → 2012-05-19Seismic survey in progress until 190259Z may by M/V nps sanco star and M/V ocean europe towing 300 meter…Brazil-southeast Coast
- HYDROLANT 1011/122012-05-12 → 2012-05-19Seismic survey in progress until 190259Z may by M/V nps ramform sovereing towing 14 8100 meter long cables…Brazil-south Coast
- HYDROLANT 1010/122012-05-12 → 2012-05-19Seismic survey in progress until 190259Z may by M/V nps wg cook towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 984/122012-05-10 → 2012-05-19Seismic survey in progress until 18 may by M/V discoverer in area bound by 30-42S 050-10W, 31-49S 048-14W,…Brazil-south Coast
- HYDROLANT 957/122012-05-05 → 2012-05-12Seismic survey 050300Z to 120259Z may by M/V nps wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 956/122012-05-05 → 2012-05-12Seismic survey 050300Z to 120259Z may by M/V ramform sovereing towing 14 8100 meter long cables in area…Brazil-south Coast
- HYDROLANT 955/122012-05-05 → 2012-05-12Seismic survey 050300Z to 120259Z may by M/V sanco star and M/V ocean europe towing 300 meter long cables in…Brazil-southeast Coast
- HYDROLANT 954/122012-05-05 → 2012-05-12Seismic survey 050300Z to 120259Z may by M/V veritas viking towing eight 3.5 mile long cables in area bound…Brazil-south Coast
- HYDROLANT 953/122012-05-05 → 2012-05-12Seismic survey 050300Z to 120259Z may by M/V oceanic phoenix in area between 23-41.02S 041-12.17W, 23-36.15S…Brazil-southeast Coast
- HYDROLANT 947/122012-05-04 → 2012-05-12Seismic survey in progress until further notice by M/V northern explorer towing six mile long cable in area…Eastern South Atlantic · Namibia
- HYDROLANT 937/122012-05-03 → 2012-05-07Seismic survey in progress until 06 may by M/V discoverer in area bound by 35-10S 049-02W, 35-13S 049-06W,…Brazil-south Coast
- HYDROLANT 907/122012-04-28 → 2012-05-05Seismic survey in progress until 050259Z may by M/V nps wg cook towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 901/122012-04-28 → 2012-05-05Seismic survey in progress until 050259Z may by M/V veritas viking towing eight 3.5 mile long cables in area…Brazil-south Coast
- HYDROLANT 900/122012-04-28 → 2012-05-05Seismic survey in progress until 050259Z may by M/V sanco star and M/V ocean europe towing 300 meter long…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.