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 122/142014-01-12 → 2014-01-14Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 12 and 13 jan along trackline…Western South Atlantic · Uruguay
- HYDROLANT 115/142014-01-12 → 2014-01-13Seismic survey in progress until 130159Z jan by M/V western neptune towing 12 five mile long cables in area…Brazil-south Coast
- HYDROLANT 114/142014-01-12 → 2014-01-18Seismic survey in progress until 180159Z jan by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 112/142014-01-11 → 2014-01-18Seismic survey in progress until 180159Z jan by M/V nps sanco swift towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 111/142014-01-11 → 2014-04-14Seismic survey 13 jan thru 13 apr by M/V polarcus asima towing 12 8100 meter long cables in area bound by…Eastern South Atlantic · Namibia
- HYDROLANT 109/142014-01-11 → 2014-01-14Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 11 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 104/142014-01-11 → 2014-01-13Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 11 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 96/142014-01-10 → 2014-01-12Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 10 and 11 jan along trackline…Western South Atlantic · Uruguay
- HYDROLANT 84/142014-01-09 → 2014-01-11Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 09 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 72/142014-01-08 → 2014-01-09Seismic survey 08 jan by M/V western regent towing ten 9260 meter long cables along tracklines between: a.…Western South Atlantic · Uruguay
- HYDROLANT 71/142014-01-08 → 2014-01-11Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 08 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 55/142014-01-07 → 2014-01-08Seismic survey in progress until 08 jan by M/V western regent towing ten 9260 meter long cables along…Western South Atlantic · Uruguay
- HYDROLANT 48/142014-01-06 → 2014-01-08Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 06 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 41/142014-01-06 → 2014-01-07Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 06 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 35/142014-01-05 → 2014-01-06Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 05 and 06 jan along trackline…Western South Atlantic · Uruguay
- HYDROLANT 33/142014-01-04 → 2014-01-05Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 04 and 05 jan along trackline…Western South Atlantic · Uruguay
- HYDROLANT 26/142014-01-04 → 2014-01-11Seismic survey in progress until 110159Z jan by M/V nps western neptune towing 12 five mile long cables in…Brazil-south Coast
- HYDROLANT 25/142014-01-04 → 2014-01-11Seismic survey in progress until 110159Z jan by M/V oceanic champion towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 24/142014-01-04 → 2014-01-11Seismic survey in progress until 110159Z jan by M/V nps sanco swift towing 12 five mile long cables in area…Brazil-southeast Coast
- HYDROLANT 22/142014-01-03 → 2014-01-03Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 03 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 14/142014-01-03 → 2014-01-05Seismic survey by M/V ramform viking towing 12 7000 meter long cables: a. 03 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 13/142014-01-03 → 2014-01-04Seismic survey 03 jan by M/V western regent towing ten 9260 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3/142014-01-02 → 2014-01-03Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 02 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 2/142014-01-01 → 2014-01-03Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 01 jan along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3386/132013-12-30 → 2014-01-02Seismic cable adrift in 36-26S 052-26WWestern South Atlantic · Uruguay
- HYDROLANT 3381/132013-12-29 → 2014-01-01Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 30 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3380/132013-12-29 → 2014-01-01Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 30 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3374/132013-12-29 → 2013-12-30Seismic survey 29 dec by M/V ramform vanguard towing 12 7000 meter long cables along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3372/132013-12-29 → 2013-12-29Seismic survey by M/V western regent towing ten 9260 meter long cables: a. 29 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3365/132013-12-28 → 2014-01-04Seismic survey in progress until 040159Z jan 14 by M/V nps sanco swift towing 12 five mile long cables in…Brazil-southeast Coast
- HYDROLANT 3364/132013-12-28 → 2014-01-04Seismic survey in progress until 040159Z jan 14 by M/V oceanic champion towing 12 five mile long cables in…Brazil-southeast Coast
- HYDROLANT 3363/132013-12-28 → 2014-01-04Seismic survey in progress until 040159Z jan 14 by nps western neptune towing 12 five mile long cables in…Brazil-south Coast
- HYDROLANT 3356/132013-12-27 → 2013-12-30Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 27 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3345/132013-12-26 → 2013-12-29Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 26 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3342/132013-12-25 → 2013-12-27Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 25 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3341/132013-12-25 → 2013-12-26Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 25 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3328/132013-12-24 → 2013-12-25Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 24 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3327/132013-12-24 → 2013-12-25Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 24 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3313/132013-12-22 → 2013-12-24Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 22 and 23 dec along trackline…Western South Atlantic · Uruguay
- HYDROLANT 3308/132013-12-22 → 2013-12-24Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 22 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3289/132013-12-20 → 2013-12-28Seismic survey 210200Z to 280159Z dec by M/V western neptune towing 12 five mile long cables in area bound…Brazil-southeast Coast
- HYDROLANT 3288/132013-12-20 → 2013-12-28Seismic survey 210200Z to 280159Z dec by M/V oceanic champion towing 12 five mile long cables in area bound…Brazil-southeast Coast
- HYDROLANT 3287/132013-12-20 → 2013-12-28Seismic survey 210200Z to 280159Z dec by M/V sanco swift towing 12 five mile long cables in area bound by…Brazil-southeast Coast
- HYDROLANT 3283/132013-12-20 → 2013-12-23Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 20 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3282/132013-12-20 → 2013-12-23Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 20 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3273/132013-12-19 → 2013-12-20Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 19 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3267/132013-12-18 → 2013-12-19Seismic survey by M/V ramform vanguard towing 12 7000 meter long cables: a. 18 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3266/132013-12-18 → 2013-12-20Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 18 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3261/132013-12-18 → 2013-12-18Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 18 dec along trackline between…Western South Atlantic · Uruguay
- HYDROLANT 3252/132013-12-17 → 2013-12-21Seismic survey in progress until 210159Z dec M/V oceanic champion towing 12 five mile 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.