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 1859/112011-11-08 → 2011-11-15Seismic survey by M/V nps symphony: a. in progess until 09159Z nov in area bound by 24-05S 042-24W, 24-06S…Brazil-southeast Coast
- HYDROLANT 1854/112011-11-08 → 2011-11-15Seismic survey in progress until 150159Z nov by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1788/112011-10-29 → 2011-11-03Seismic survey in progress until 02 nov by M/V discoverer in area bound by 01-50S 038-47W, 02-09S 038-53W,…Brazil-north Coast
- HYDROLANT 1782/112011-10-28 → 2011-11-08Seismic survey in progress until 080259Z nov by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1781/112011-10-28 → 2011-11-08Seismic survey in progress until 080259Z nov by M/V nps symphony towing ten three mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1780/112011-10-28 → 2011-11-08Seismic survey in progress until 080259 nov by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1774/112011-10-28 → 2011-10-30Seismic survey 28 and 29 oct by M/V discoverer in area bound by 01-50S 038-53W, 01-50S 038-47W, 01-24S…Brazil-north Coast
- HYDROLANT 1733/112011-10-21 → 2011-10-28Seismic survey 210300Z to 280259Z oct by M/V ramform sovereing towing 14 8100 meter long cables in area…Brazil-south Coast
- HYDROLANT 1732/112011-10-21 → 2011-10-28Seismic survey 210300Z to 280259Z oct by M/V nps symphony towing ten three mile long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 1731/112011-10-21 → 2011-10-28Seismic survey 210300Z to 280259Z oct by M/V wg cook towing 12 five mile long cables in area bound by 25-42S…Brazil-south Coast
- HYDROLANT 1693/112011-10-15 → 2011-10-21Seismic survey in progress until 210259Z oct by M/V nps symphony towing ten three mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1692/112011-10-15 → 2011-10-21Seismic survey in progress until 210259Z oct by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1691/112011-10-15 → 2011-10-21Seismic survey in progress until 210259Z oct by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 1690/112011-10-15 → 2011-12-19Seismic survey in progress until further notice by M/V ramform valiant in area bound by 07-13.2S 011-41.6E,…Eastern South Atlantic · Angola
- HYDROLANT 1646/112011-10-07 → 2011-10-14Seismic survey in progress until 140259Z oct by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 1645/112011-10-07 → 2011-10-14Seismic survey in progress until 140259Z oct by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1642/112011-10-07 → 2011-10-14Seismic survey in progress until 140259Z oct by M/V nps symphony towing ten three meter long cables in area…Brazil-southeast Coast
- HYDROLANT 1610/112011-10-02 → 2011-10-22Seismic survey in progress until further notice by M/V nordic explorer towing six four mile long cables…Eastern South Atlantic · Congo
- HYDROLANT 1574/112011-09-27 → 2011-10-05Seismic survey in progress until 050259Z oct by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-south Coast
- HYDROLANT 1573/112011-09-27 → 2011-10-05Seismic survey in progress until 050259Z oct by M/V nps symphony towing ten cables in area bound by 25-05S…Brazil-south Coast
- HYDROLANT 1572/112011-09-27 → 2011-10-05Seismic survey in progress until 050259Z oct by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1526/112011-09-21 → 2011-09-27Seismic survey in progress until 270259Z sep by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1524/112011-09-21 → 2011-09-27Seismic survey in progress until 270259Z sep by M/V nps symphony towing ten 5556 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 1505/112011-09-17 → 2011-09-21Pipeline operations 20 sep thru 20 oct along trackline joining 20-59.07S 040-25.15W, 20-59.52S 040-24.93W,…Brazil-east Coast
- HYDROLANT 1475/112011-09-14 → 2011-09-21Seismic survey in progress until 210259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1473/112011-09-14 → 2011-09-21Seismic survey in progress until 210259Z sep by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1472/112011-09-14 → 2011-09-21Seismic survey in progress until 210259Z sep by M/V nps symphony towing ten 5556 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 1423/112011-09-07 → 2011-09-14Seismic survey in progress until 140259Z sep by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1422/112011-09-07 → 2011-09-14Seismic survey in progress until 140259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1393/112011-09-02 → 2011-09-07Seismic survey in progress until 070259Z sep by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1392/112011-09-02 → 2011-09-07Seismic survey in progress until 070259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1383/112011-08-31 → 2011-09-06Cable operations 010600Z sep until further notice by cableship peter faber in 04-37.3S 011-30.0EEastern South Atlantic
- HYDROLANT 1352/112011-08-24 → 2011-09-01Seismic survey in progress until 010259Z sep by M/V wg cook towing 12 five mile long cables in area bound by…Brazil-south Coast
- HYDROLANT 1350/112011-08-24 → 2011-09-01Seismic survey in progress until 010259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1306/112011-08-18 → 2011-08-24Seismic survey 170300Z to 240259Z aug by M/V wg cook towing 12 five mile long cables in area bound by 25-42S…Brazil-south Coast
- HYDROLANT 1304/112011-08-18 → 2011-08-24Seismic survey in progress until 240259Z aug by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1279/112011-08-13 → 2011-08-17Seismic survey in progress until 170259Z aug by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1251/112011-08-09 → 2011-08-13Seismic survey in progress until 130259Z aug by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1242/112011-08-06 → 2011-08-20Underwater operations in progress until further notice by cableship peter faber vicinity of trackline…Eastern South Atlantic
- HYDROLANT 1201/112011-07-29 → 2011-08-02Cable operations in progress until further notice by cableship peter faber vicinity 05-55S 012-06EEastern South Atlantic
- HYDROLANT 1195/112011-07-29 → 2011-08-05Seismic survey in progress until 050259Z aug by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1165/112011-07-22 → 2011-07-29Seismic survey in progress until 290259Z jul by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1157/112011-07-20 → 2011-07-23Underwater operations in progress until further notice by cableship peter faber along trackline joining…Eastern South Atlantic
- HYDROLANT 1148/112011-07-15 → 2011-07-22Seismic survey in progress until 220259Z jul by M/V western neptune towing 12 3.5 mile long cables and M/V…Brazil-southeast Coast
- HYDROLANT 1147/112011-07-15 → 2011-07-22Seismic survey in progress until 220259Z jul by M/V ramform sovereing towing 14 8100 meter long cables in…Brazil-southeast Coast
- HYDROLANT 1141/112011-07-14 → 2011-07-19Cable operations in progress until further notice by cableship peter faber along trackline between 09-32.5S…Eastern South Atlantic · Angola
- HYDROLANT 1137/112011-07-13 → 2011-07-20Cable operations 14 thru 19 jul by cableship ile de brehat in area bound by 04-39S 011-18E, 04-37S 011-29E,…Eastern South Atlantic
- HYDROLANT 1116/112011-07-07 → 2011-07-15Seismic survey in progress until 150259Z jul by M/V ramform valiant towing 14 8100 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 1115/112011-07-07 → 2011-07-15Seismic survey by M/V ramform sovereing towing 14 8100 meter long cables: a. in progress until 130259Z jul…Brazil-south Coast
- HYDROLANT 1114/112011-07-07 → 2011-07-15Seismic survey in progress until 150259Z jul by M/V western monarch towing three mile long cables in area…Brazil-east 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.