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 2274/132013-09-16 → 2013-09-18Seismic survey in progress until 17 sep by M/V ramform vanguard towing 12 7000 meter cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 2260/132013-09-14 → 2013-09-16Seismic survey in progress until 15 sep by M/V ramform vanguard towing 12 7000 meter cables in area bound by…Western South Atlantic · Uruguay
- HYDROLANT 2253/132013-09-14 → 2013-09-21Seismic survey in progress until 210259Z sep by M/V western neptune towing 12 6000 meter long cables in area…Brazil-south Coast
- HYDROLANT 2231/132013-09-12 → 2013-09-12Seismic survey in progress until 13 sep by M/V ramform vanguard towing 12 7000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 2217/132013-09-10 → 2013-09-12Seismic survey in progress until 11 sep by M/V ramform vanguard towing 12 7000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 2214/132013-09-10 → 2013-09-10Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 10 sep along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2204/132013-09-09 → 2013-09-12Seismic survey in progress until further notice by M/V western regent towing ten 8800 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2197/132013-09-08 → 2013-09-10Seismic survey 08 and 09 sep by M/V ramform vanguard towing 12 7000 meter long cables along tracklines…Western South Atlantic · Uruguay
- HYDROLANT 2184/132013-09-06 → 2013-09-14Seismic survey in progress until 140259Z sep by M/V western neptune towing 12 6000 meter long cables in area…Brazil-south Coast
- HYDROLANT 2182/132013-09-06 → 2013-09-08Seismic survey 06 and 07 sep by M/V ramform vanguard towing 12 7000 meter long cables along trackline…Western South Atlantic · Uruguay
- HYDROLANT 2177/132013-09-06 → 2013-09-08Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 06 sep along trackline joining…Western South Atlantic · Uruguay
- HYDROLANT 2175/132013-09-05 → 2013-09-06Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2156/132013-09-03 → 2013-09-04Seismic survey in progress until 03 sep by M/V ramform vanguard towing 12 7000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 2130/132013-09-01 → 2013-09-03Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2117/132013-08-31 → 2013-09-07Seismic survey 310300Z aug to 070259Z sep by M/V western neptune towing 12 6000 meter long cables in area…Brazil-south Coast
- HYDROLANT 2116/132013-08-30 → 2013-09-01Seismic survey in progress until 31 aug by M/V ramform vanguard towing 12 7000 meter long cables along…Western South Atlantic · Uruguay
- HYDROLANT 2101/132013-08-29 → 2013-08-31Seismic survey in progress until 30 aug by M/V ramform vanguard towing 12 7000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 2096/132013-08-28 → 2013-08-30Seismic survey in progress until 29 aug by M/V ramform vanguard towing 12 7000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 2090/132013-08-27 → 2013-08-28Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2078/132013-08-26 → 2013-08-27Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2074/132013-08-24 → 2013-08-26Seismic survey in progress until 25 aug by M/V ramform vanguard towing 12 7000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 2064/132013-08-23 → 2013-08-31Seismic survey 240300Z to 310259Z aug by M/V western neptune towing 12 6000 meter long cables in area bound…Brazil-south Coast
- HYDROLANT 2054/132013-08-22 → 2013-08-24Seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long cables in…Western South Atlantic · Uruguay
- HYDROLANT 2009/132013-08-17 → 2013-08-24Seismic survey 170300Z to 240259Z aug by M/V sanco star in area bound by 23-04.85S 041-05.02W, 23-08.65S…Brazil-southeast Coast
- HYDROLANT 2008/132013-08-17 → 2013-08-24Seismic survey 170300Z to 240259Z aug by M/V western neptune towing 12 6000 meter long cables in area bound…Brazil-south Coast
- HYDROLANT 2004/132013-08-16 → 2013-08-18Seismic survey in progress until 17 aug by M/V ramform vanguard towing 12 7000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 1996/132013-08-15 → 2013-08-16Seismic survey in progress until 16 aug by M/V ramform vanguard towing 12 7000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 1995/132013-08-15 → 2013-08-17Seismic survey 170300Z to 240259Z aug by M/V sanco star in area bound by 23-04.52S 041-05.01W, 23-08.39S…Brazil-southeast Coast
- HYDROLANT 1994/132013-08-15 → 2013-08-17Seismic survey in progress until 240259Z aug by M/V western neptune towing 12 6000 meter long cables in area…Brazil-south Coast
- HYDROLANT 1989/132013-08-14 → 2013-08-15Seismic survey in progress until 15 aug by M/V ramform vanguard towing 12 7000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 1976/132013-08-13 → 2013-08-15Uruguay 1. seismic survey in progress until 14 aug by M/V ramform vanguard towing 12 7000 meter long cables…Western South Atlantic
- HYDROLANT 1971/132013-08-12 → 2013-08-13Uruguay 1. seismic survey in progress until further notice by M/V ramform vanguard towing 12 7000 meter long…Western South Atlantic
- HYDROLANT 1964/132013-08-11 → 2013-08-13Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 11 aug along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1958/132013-08-10 → 2013-08-17Seismic survey in progress until 170259Z aug by M/V ocean europe towing three 200 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 1957/132013-08-10 → 2013-08-17Seismic survey in progress until 170259Z aug by M/V sanco star in area bound by 23-04.87S 041-05.02W,…Brazil-southeast Coast
- HYDROLANT 1956/132013-08-10 → 2013-08-15Seismic survey 100300Z to 170259Z aug by M/V western neptune towing 12 6000 meter long cables in area bound…Brazil-south Coast
- HYDROLANT 1954/132013-08-10 → 2013-08-12Seismic survey in progress until 11 aug by M/V ramform vanguard towing 12 7000 meter long cables area bound…Western South Atlantic · Uruguay
- HYDROLANT 1952/132013-08-09 → 2013-08-11Seismic survey in progress until 10 aug by M/V ramform vanguard towing 12 7000 meter long cables area bound…Western South Atlantic · Uruguay
- HYDROLANT 1941/132013-08-08 → 2013-08-11Seismic survey in progress until 10 aug by M/V ramform vanguard towing 12 7000 meter long cables along…Western South Atlantic · Uruguay
- HYDROLANT 1932/132013-08-07 → 2013-08-09Seismic survey in progress until 08 aug by M/V ramform vanguard towing 12 7000 meter long cables in area…Western South Atlantic · Uruguay
- HYDROLANT 1923/132013-08-07 → 2013-08-08Seismic survey 07 aug by M/V ramform vanguard towing 12 7000 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 1909/132013-08-06 → 2013-08-10Seismic survey in progress until 100259Z aug by M/V ocean europe towing three 200 meter long cables in area…Brazil-southeast Coast
- HYDROLANT 1908/132013-08-06 → 2013-08-10Seismic survey in progress until 100259Z aug by M/V sanco star in area bound by 23-04.87S 041-05.02W,…Brazil-southeast Coast
- HYDROLANT 1901/132013-08-05 → 2013-08-07Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 05 aug along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1895/132013-08-04 → 2013-08-05Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 04 aug along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1881/132013-08-03 → 2013-08-05Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 03 aug along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 1878/132013-08-03 → 2013-08-06Seismic survey 030300Z to 100259Z aug by M/V ocean europe towing three 200 meter long cables in area bound…Brazil-southeast Coast
- HYDROLANT 1877/132013-08-03 → 2013-08-06Seismic survey 030300Z to 100259Z aug by M/V sanco star in area bound by 23-04.87S 041-05.02W, 23-08.65S…Brazil-southeast Coast
- HYDROLANT 1876/132013-08-03 → 2013-08-10Seismic survey 030300Z to 100259Z aug by M/V western neptune towing 12 10000 meter long cables in area bound…Brazil-south Coast
- HYDROLANT 1866/132013-08-01 → 2013-08-03Seismic survey 01 and 02 aug by M/V ramform vanguard towing 12 7000 meter long cables along tracklines…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.