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 · 50 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)
J
F
M
A
M
J
J
A
S
O
N
D
Other hazards in the South Atlantic Ocean
Archive · 5,170 cancelled
- HYDROLANT 3335/162016-12-10 → 2016-12-18Seismic survey in progress until 17 dec by M/V polarcus adira towing 9000 meter long cable in area bound by…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3333/162016-12-10 → 2016-12-18Seismic survey in progress until 17 dec by M/V oceanic vega towing 9300 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 3259/162016-12-03 → 2016-12-11Seismic survey in progress until 10 dec by M/V polarcus adira towing 9000 meter long cable in area bound by…Western South Atlantic · Brazil-south Coast
- HYDROLANT 3258/162016-12-03 → 2016-12-11Seismic survey in progress until 10 dec by M/V oceanic vega towing 9300 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 3257/162016-12-03 → 2016-12-11Seismic survey in progress until 10 dec by M/V bgp challenger towing 12000 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 3161/162016-11-25 → 2016-12-04Seismic survey in progress until 03 dec by M/V bgp challenger towing 12000 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 3160/162016-11-25 → 2016-12-04Seismic survey 26 nov thru 03 dec by M/V polarcus adira towing 9000 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 3159/162016-11-25 → 2016-12-04Seismic survey 25 nov thru 03 dec by M/V oceanic vega towing 9300 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 3085/162016-11-19 → 2016-11-27Seismic survey in progress until 26 nov by M/V polarcus adira towing 9000 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 3084/162016-11-19 → 2016-11-27Seismic survey in prgress until 26 nov by M/V bgp challenger towing 12000 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 3080/162016-11-19 → 2016-11-27Seismic survey in progress until 26 nov by M/V oceanic vega towing 9300 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2994/162016-11-12 → 2016-11-20Seismic survey in progress until 19 nov by M/V polarcus adira towing 9000 meter long cable in area bound by…Brazil-south Coast
- HYDROLANT 2993/162016-11-12 → 2016-11-20Seismic survey in progress until 19 nov by M/V oceanic vega towing 9300 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2991/162016-11-11 → 2016-11-20Seismic survey in progress 12 thru 19 nov by M/V bgp challenger towing 12000 meter long cable in area bound…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2839/162016-10-29 → 2016-11-06Seismic survey in progress until 05 nov by M/V bgp challenger towing 12000 meter long cable in area bound by…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2838/162016-10-29 → 2016-11-06Seismic survey in progress until 05 nov by M/V oceanic vega towing 9300 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROPAC 3211/162016-10-20 → 2016-10-26Cable laying operations 23 oct until further notice by M/V geo resolution vicinity of trackline joining…Western South Pacific · Fiji
- HYDROLANT 2701/162016-10-15 → 2016-10-23Seismic survey in progress until 22 oct by M/V bgp challenger towing 12000 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2697/162016-10-15 → 2016-10-23Seismic survey in progress thru 22 oct by M/V oceanic vega towing 9300 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2684/162016-10-14 → 2016-10-23Seismic survey 15 thru 22 oct by M/V polarcus adira towing 9000 meter long cable in area bound by 24-55.5S…Western South Atlantic · Brazil-south Coast
- HYDROLANT 2631/162016-10-08 → 2016-10-16Seismic survey in progress until 15 oct by M/V polarcus adira towing 9000 meter long cable in area bound by…Brazil-south Coast
- HYDROLANT 2630/162016-10-08 → 2016-10-16Seismic survey in progress until 15 oct by M/V bgp challenger towing 12000 meter long cable in area bound by…Brazil-southeast Coast
- HYDROLANT 2629/162016-10-08 → 2016-10-16Seismic survey in progress until 15 oct by M/V oceanic vega towing 9300 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2556/162016-10-01 → 2016-10-09Seismic survey in progress until 08 oct by M/V oceanic vega towing 9300 meter long cable in area bound by…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2555/162016-10-01 → 2016-10-09Seismic survey in progress until 08 oct by M/V bgp challenger towing 12000 meter long cable in area bound by…Brazil-southeast Coast
- HYDROLANT 2554/162016-10-01 → 2016-10-09Seismic survey in progress until 08 oct by M/V polarcus adira towing 9000 meter long cable in area bound by…Brazil-south Coast
- HYDROLANT 2487/162016-09-24 → 2016-10-02Seismic survey in progress until 01 oct by M/V bgp challenger towing 12000 meter long cable in area bound by…Brazil-southeast Coast
- HYDROLANT 2480/162016-09-23 → 2016-10-02Seismic survey 24 sep thru 01 oct by M/V polarcus adira towing 900 meter long cable in area bound by…Brazil-south Coast
- HYDROLANT 2478/162016-09-23 → 2016-10-02Seismic survey 23 sep thru 01 oct by M/V oceanic vega towing 930 meter long cable in area bound by 24-51.65S…Western South Atlantic · Brazil-southeast Coast
- HYDROLANT 2409/162016-09-16 → 2016-09-25Seismic survey 17 thru 24 sep by M/V bgp challenger towing 12000 meter long cable in area bound by 25-07S…Brazil-southeast Coast
- HYDROLANT 2408/162016-09-16 → 2016-09-23Seismic survey 17 thru 24 sep by M/V polarcus adira towing 9000 meter long cable in area bound by 24-55.5S…Brazil-south Coast
- HYDROLANT 2353/162016-09-09 → 2016-09-16Seismic survey 10 thru 17 sep by M/V polarcus adira towing 9000 meter long cable in area bound by 24-55.5S…Brazil-south Coast
- HYDROLANT 2345/162016-09-09 → 2016-09-17Seismic survey in progress until 16 sep by M/V bgp challenger towing 12000 meter long cable in area bound by…Brazil-south Coast
- HYDROLANT 2035/162016-08-11 → 2016-08-15Brazil-southeast coast DNC 01
- HYDROLANT 1953/162016-08-02 → 2016-08-11Brazil-southeast coast DNC 01
- HYDROLANT 1836/162016-07-20 → 2016-07-26Seismic survey in progress until 25 jul by M/V bgp challenger towing 12000 meter long cable in area bound by…Brazil-southeast Coast
- HYDROLANT 1785/162016-07-15 → 2016-08-16Cable laying operations in progress until 15 aug by cableship decisive and M/V saga badejo along trackline…Brazil-south Coast
- HYDROLANT 879/162016-04-12 → 2016-04-24Seismic survey in progress until 23 apr by nps sigma in area bound by 21-10.6S 039-55.5W, 21-10.5S…Brazil-southeast Coast
- HYDROLANT 842/162016-04-09 → 2016-04-12Seismic survey 10 thru 16 apr by nps sigma in area bound by 21-19.4S 039-57.5W, 21-17.3S 039-57.5W, 21-11.2S…Brazil-southeast Coast
- HYDROLANT 777/162016-04-01 → 2016-04-10Seismic survey in progress until 09 apr by M/V nps sigma in area bound by 21-00.6S 039-44.0W, 21-11.4S…Brazil-southeast Coast
- HYDROLANT 729/162016-03-27 → 2016-04-01Seismic survey 26 mar thru 02 apr by M/V nps sigma in area bound by 21-00.6S 039-44.0W, 21-11.4S 039-39.3W,…Brazil-southeast Coast
- HYDROLANT 662/162016-03-18 → 2016-03-27Seismic survey 19 thru 26 mar by M/V nps sigma in area bound by 21-19.07S 039-57.08W, 21-17.05S 039-57.08W,…Brazil-southeast Coast
- HYDROLANT 634/162016-03-15 → 2016-03-20Seismic survey in progress until 19 mar by M/V nps sigma towing cables in area bound by 21-10.35S…Brazil-southeast Coast
- HYDROLANT 400/162016-02-17 → 2016-03-12Seismic survey in progress until further notice by M/V ramform vanguard and M/V sanco spirit towing 12 8000…Eastern South Atlantic · Congo
- HYDROLANT 135/162016-01-15 → 2016-02-22Seismic survey in progress until further notice by M/V ramform sterling towing 8100 meter long cable in area…Eastern South Atlantic · Namibia
- HYDROLANT 125/162016-01-15 → 2016-02-27Seismic survey in progress until 26 feb by M/V ramform atlas towing 14 9000 meter long cables in area bound…Brazil-north Coast
- HYDROLANT 57/162016-01-06 → 2016-02-17Seismic survey in progress until further notice by M/V ramform vanguard and M/V sanco spirit towing 12 8000…Eastern South Atlantic · Congo
- HYDROLANT 3170/152015-12-24 → 2016-01-15Seismic survey in progress until further notice by M/V ramform sterling towing 8000 meter long cable in area…Eastern South Atlantic · Namibia
- HYDROLANT 3087/152015-12-13 → 2016-01-01Seismic survey 141200Z dec until further notice by M/V polarcus alima towing ten 8000 meter long cables in…Eastern South Atlantic · Congo
- HYDROLANT 2890/152015-11-24 → 2015-12-24Seismic survey operations in progress until further notice by M/V ramform sterling towing 9000 meter long…Eastern South Atlantic · Namibia
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.