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 2714/142014-11-11 → 2014-11-14Seismic survey by M/V bgp challenger towing 12000 meter long cables: a. 11 and 12 nov along trackline…Western South Atlantic · Uruguay
- HYDROLANT 2690/142014-11-08 → 2014-11-15Seismic survey in progress until 150159Z nov by M/V ramform viking towing 12 9500 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 2689/142014-11-08 → 2014-11-15Seismic survey in progress until 150159Z nov by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 2664/142014-11-05 → 2015-01-16Seismic survey in progress until 15 jan 15 by M/V nps sigma in area bound by 21-11.93S 040-04.47W, 21-15.03S…Brazil-southeast Coast
- HYDROLANT 2644/142014-11-01 → 2014-11-08Seismic survey in progress until 080159Z nov by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 2643/142014-11-01 → 2014-11-05Seismic survey in progress until 080159Z nov by M/V nps sigma in area bound by 22-55.17S 040-55.58W,…Brazil-southeast Coast
- HYDROLANT 2642/142014-11-01 → 2014-11-08Seismic survey in progress until 080159Z nov by M/V ramform viking towing 12 9500 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 2630/142014-10-29 → 2015-05-02Seismic survey in progress until further notice by M/V oceanic endeavour towing ten 11000 meter long cables…Eastern South Atlantic · Gabon
- HYDROLANT 2596/142014-10-26 → 2014-11-01Seismic survey in progress until 010259Z nov by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 2595/142014-10-26 → 2014-11-01Seismic survey in progress until 010259Z nov by M/V ramform viking towing 12 9500 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 2585/142014-10-25 → 2014-11-01Seismic survey in progress until 010259Z nov by M/V nps sigma in area bound by 22-55.17S 040-55.58W,…Brazil-southeast Coast
- HYDROLANT 2539/142014-10-18 → 2014-10-25Seismic survey in progress until 250259Z oct by M/V nps sigma in area bound by 22-55.17S 040-55.58W,…Brazil-southeast Coast
- HYDROLANT 2535/142014-10-18 → 2014-10-26Seismic survey in progress until 25 oct by M/V ramform viking towing 12 9500 meter long cables in area bound…Brazil-southeast Coast
- HYDROLANT 2507/142014-10-15 → 2014-10-18Seismic survey in progress until 10 nov by M/V nps sigma in area bound by 23-23.11S 041-34.07W, 23-12.24S…Brazil-southeast Coast
- HYDROLANT 2471/142014-10-11 → 2014-11-11Seismic survey in progress until 10 nov by M/V nps oceanic atalwart towing 5.4 mile long cable in area bound…Brazil-north Coast
- HYDROLANT 2456/142014-10-09 → 2015-04-30Seismic survey in progress until 302300Z apr 15 by M/V geo caribbean towing ten 11500 meter long cables in…Eastern South Atlantic · Gabon
- HYDROLANT 2448/142014-10-09 → 2014-10-18Seismic survey in progress until 180259Z oct by M/V ramform viking towing 12 9500 meter long cables in areas…Brazil-southeast Coast
- HYDROLANT 2447/142014-10-09 → 2014-10-18Seismic survey in progress until 180259Z oct by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 2428/142014-10-07 → 2014-12-02Seismic survey in progress until further notice by M/V polarcus amani towing 9300 meter long cable in area…Eastern South Atlantic · Namibia
- HYDROLANT 2421/142014-10-07 → 2014-10-09Seismic survey in progress until 110259Z oct by M/V ramform viking towing 12 9500 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 2401/142014-10-04 → 2014-10-07Seismic survey 05 oct thru 05 dec by M/V ramform viking towing 12 5100 meter long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 2376/142014-10-02 → 2014-10-09Seismic survey 020300Z to 090259Z oct towing 12 five mile long cables in area bound by 20-47.14S 039-21.98W,…Brazil-east Coast
- HYDROLANT 2305/142014-09-25 → 2014-10-02Seismic survey in progress until 020259Z oct by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 2296/142014-09-24 → 2014-10-04Seismic survey in progress until 30 oct by M/V ramform viking towing 12 9500 meter long cables in area bound…Brazil-east Coast
- HYDROLANT 2261/142014-09-18 → 2014-09-25Seismic survey 180300Z to 250259Z sep by M/V oceanic champion towing 12 five mile long cables in area bound…Brazil-east Coast
- HYDROLANT 2260/142014-09-18 → 2014-09-24Seismic survey in progress until 30 oct by M/V ramform viking towing 12 9500 meter long cables in area bound…Brazil-east Coast
- HYDROLANT 2250/142014-09-17 → 2014-09-18Seismic survey in progress until 30 oct by M/V ramform viking towing 12 9500 meter long cables in area bound…Brazil-east Coast
- HYDROLANT 2244/142014-09-16 → 2014-11-26Seismic survey in progress until further notice by M/V ramform valiant in area bound by 13-38.0S 012-32.0E,…Eastern South Atlantic · Angola
- HYDROLANT 2229/142014-09-15 → 2014-09-16Seismic survey in progress until further notice by M/V ramform valiant and M/V nordic explorer in area bound…Eastern South Atlantic · Angola
- HYDROLANT 2201/142014-09-11 → 2014-09-18Seismic survey in progress until 180259Z sep by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 2139/142014-09-04 → 2014-09-11Seismic survey in progress until 110259Z sep by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 2079/142014-08-29 → 2014-09-04Seismic survey in progress until 040259Z sep by vessel towing 12 five mile long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 2060/142014-08-28 → 2014-08-29Seismic survey 280300Z aug to 040259Z sep by vessel towing 12 five mile long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 1999/142014-08-21 → 2014-08-28Seismic survey in progress until 280259Z aug by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 1938/142014-08-14 → 2014-08-21Seismic survey in progress until 210259Z aug by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 1936/142014-08-14 → 2014-12-16Pipeline operations in progress until 160400Z dec within 0.5 miles of 03-40.11S 038-27.67WBrazil-north Coast
- HYDROLANT 1808/142014-07-25 → 2014-07-30Seismic survey in progress until 300259Z jul by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1725/142014-07-16 → 2014-07-23Seismic survey in progress until 230259Z jul by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1671/142014-07-10 → 2014-07-16Seismic survey in progress until 160259Z jul by vessel towing 12 five mile long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 1624/142014-07-04 → 2014-07-09Seismic survey in progress until 090259Z jul by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1553/142014-06-25 → 2014-07-02Seismic survey in progress until 020259Z jul by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1535/142014-06-22 → 2014-06-25Seismic survey in progress until 280259Z jun by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1482/142014-06-14 → 2014-06-22Seismic survey in progress until 280159Z jun by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1454/142014-06-11 → 2014-06-14Seismic survey in progress until 140159Z jun by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1448/142014-06-10 → 2014-07-31Seismic survey in progress until further notice by M/V geo coral towing 12 9500 meter long cables in area…Eastern South Atlantic · Angola
- HYDROLANT 1421/142014-06-07 → 2014-06-11Seismic survey in progress until 140159Z jun by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 1362/142014-05-31 → 2014-07-16Seismic survey 010001Z jun to 160300Z jul by M/V nps sigma in area bound by 21-00.98S 039-44.08W, 21-11.67S…Brazil-southeast Coast
- HYDROLANT 1351/142014-05-30 → 2014-06-07Seismic survey 310200Z may to 070159Z jun by M/V oceanic champion towing 12 five mile long cables in area…Brazil-east Coast
- HYDROLANT 1344/142014-05-30 → 2014-06-21Pipeline operations 31 may thru 20 jun by M/V varada buzios within 0.5 miles of 03-40.11S 038-27.67WBrazil-north Coast
- HYDROLANT 1302/142014-05-23 → 2014-05-31Seismic survey 240200Z to 310159Z may by M/V oceanic champion towing 12 five mile long cables in area bound…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.