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

  1. HYDROLANT 1497/26in force2026-08-04
    Survey operations by cableship Nautilus are in progress near Angola until 22 August; wide berth requested.
    South Atlantic · Angola
  2. NAVAREA II 269/26in force2026-07-02
    Seismic survey by vessel Ramform Victory is in progress off Pointe Noire until further notice; wide berth requested.
    Pointe Noire

Longest in force

  1. NAVAREA II 269/26in force2026-07-02 · 52 d
    Seismic survey by vessel Ramform Victory is in progress off Pointe Noire until further notice; wide berth requested.
    Pointe Noire
  2. HYDROLANT 1497/26in force2026-08-04 · 19 d
    Survey operations by cableship Nautilus are in progress near Angola until 22 August; wide berth requested.
    South Atlantic · Angola

By year

98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

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

  1. HYDROLANT 802/012001-03-10 → 2001-03-13
    Seismic survey in progress until 12 mar by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  2. HYDROLANT 794/012001-03-09 → 2001-03-13
    Seismic survey in progress until 12 mar by M/V veritas viking II towing six 6500 meter long cables in area…
  3. HYDROLANT 793/012001-03-09 → 2001-03-10
    Seismic survey in progress until 09 mar by M/V ramform vanguard and M/V kondor explorer towing ten 4800…
  4. HYDROLANT 770/012001-03-07 → 2001-03-10
    Seismic survey in progress until 09 mar by M/V northern access towing 4800 meter long cable in area bound by…
  5. HYDROLANT 769/012001-03-07 → 2001-03-10
    Seismic survey in progress until 09 mar by M/V geco tau towing 8300 meter long cable in area bound by 02-23S…
  6. HYDROLANT 768/012001-03-07 → 2001-03-12
    Seismic survey in progress until 11 mar by M/V western patriot towing seven 3000 meter long cables in area…
  7. HYDROLANT 756/012001-03-06 → 2001-03-10
    Seismic survey in progress until 09 mar by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  8. HYDROLANT 739/012001-03-05 → 2001-03-06
    Seismic survey in progress until 05 mar by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  9. HYDROLANT 738/012001-03-05 → 2001-03-07
    Seismic survey in progress until 09 mar by M/V geco tau towing 8300 meter long cable in area bound by 02-25S…
  10. HYDROLANT 737/012001-03-05 → 2001-03-07
    Seismic survey in progress until 06 mar by M/V western patriot towing seven 3000 meter long cables in area…
  11. HYDROLANT 721/012001-03-03 → 2001-03-05
    Seismic survey in progress until 04 mar by M/V geco tau towing 8300 meter long cable in area bound by 01-21S…
  12. HYDROLANT 720/012001-03-03 → 2001-03-09
    Seismic survey in progress until 08 mar by M/V veritas viking II towing six 6500 meter long cables in area…
  13. HYDROLANT 707/012001-03-02 → 2001-03-05
    Seismic survey in progress until 04 mar by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  14. HYDROLANT 706/012001-03-02 → 2001-03-05
    Seismic survey in progress until 04 mar by M/V western patriot towing seven 3000 meter long cables in area…
  15. HYDROLANT 687/012001-02-28 → 2001-03-01
    Submarine cable operations 281200Z feb to 020001Z mar by M/V skandi hav in area bound by 03-40.5S 038-18.0W,…
  16. HYDROLANT 685/012001-02-27 → 2001-03-03
    Seismic survey in progress until 03 mar by M/V geco tau towing 8300 meter long cable in area bound by 02-25S…
  17. HYDROLANT 674/012001-02-26 → 2001-03-01
    Submarine cable operations in progress until 28 feb by M/V osa vigilant towing submersible along trackline…
  18. HYDROLANT 669/012001-02-25 → 2001-03-02
    Seismic survey in progress until 01 mar by M/V western patriot towing seven 3000 meter long cables in area…
  19. HYDROLANT 667/012001-02-25 → 2001-02-28
    Submarine cable operations 251200Z to 280001Z feb by M/V skandi hav in area bound by 03-41.2S 038-19.1W,…
  20. HYDROLANT 658/012001-02-24 → 2001-03-02
    Seismic survey in progress until 01 mar by M/V veritas viking II towing six 6500 meter long cables in area…
  21. HYDROLANT 657/012001-02-24 → 2001-02-27
    Seismic survey in progress until 26 feb by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  22. HYDROLANT 656/012001-02-24 → 2001-02-27
    Seismic survey in progress until 26 feb by M/V northern access towing 4800 meter long cable in area bound by…
  23. HYDROLANT 639/012001-02-22 → 2001-02-24
    Seismic survey in progress until 23 feb by M/V veritas viking II towing six 6500 meter long cables in area…
  24. HYDROLANT 638/012001-02-22 → 2001-02-25
    Seismic survey in progress until 24 feb by M/V ramform explorer and M/V willbeest towing eight 7500 meter…
  25. HYDROLANT 627/012001-02-21 → 2001-02-24
    Submarine cable operations 210800Z to 240001Z feb by M/V skandi hav in area bound by 03-23.8S 038-06.1W,…
  26. HYDROLANT 626/012001-02-21 → 2001-02-24
    Seismic survey in progress until 23 feb by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  27. HYDROLANT 625/012001-02-21 → 2001-02-24
    Seismic survey in progress until 23 feb by M/V northern access towing 8704 meter long cable in area bound by…
  28. HYDROLANT 621/012001-02-20 → 2001-02-21
    Submarine cable operations in progress until 210800Z feb by M/V skandi hav in area bound by 03-23.8S…
  29. HYDROLANT 620/012001-02-20 → 2001-02-25
    Seismic survey in progress until 24 feb by M/V western patriot towing seven 3000 meter long cables in area…
  30. HYDROLANT 619/012001-02-20 → 2001-02-22
    Seismic survey in progress until 21 feb by M/V veritas viking II towing six 6500 meter long cables in area…
  31. HYDROLANT 617/012001-02-20 → 2001-02-22
    Seismic survey in progress until 21 feb by M/V ramform explorer and M/V willbeest towing eight 7500 meter…
  32. HYDROLANT 600/012001-02-18 → 2001-02-21
    Seismic survey in progress until 20 feb by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  33. HYDROLANT 599/012001-02-18 → 2001-02-19
    Seismic survey in progress until 18 feb by M/V veritas viking II towing six 6500 meter long cables in area…
  34. HYDROLANT 598/012001-02-18 → 2001-02-20
    Submarine cable operations in progress until 210800Z feb by cableship skandi hav vicinity 03-53.21S 038-06.36W
  35. HYDROLANT 597/012001-02-18 → 2001-02-18
    Seismic survey in progress until 20 feb by M/V northern access towing 8704 meter long cable in area bound by…
  36. HYDROLANT 589/012001-02-17 → 2001-02-21
    Submarine cable operations in progress until 20 feb by M/V osa vigilant towing submersible along trackline…
  37. HYDROLANT 588/012001-02-17 → 2001-02-20
    Seismic survey in progress until 19 feb by M/V ramform explorer and M/V willbeest towing eight 7500 meter…
  38. HYDROLANT 576/012001-02-16 → 2001-02-18
    Seismic survey in progress until 17 feb by M/V veritas viking II towing six 6500 meter long cables in area…
  39. HYDROLANT 559/012001-02-15 → 2001-02-18
    Seismic survey in progress until 17 feb by M/V northern access towing 8704 meter long cable in area bound by…
  40. HYDROLANT 558/012001-02-15 → 2001-02-18
    Seismic survey in progress until 17 feb by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  41. HYDROLANT 556/012001-02-15 → 2001-02-20
    Seismic survey in progress until 19 feb by M/V geco tau towing 8300 meter long cable in area bound by 02-25S…
  42. HYDROLANT 555/012001-02-15 → 2001-02-20
    Seismic survey in progress until 19 feb by M/V western patriot towing seven 3000 meter long cables in area…
  43. HYDROLANT 543/012001-02-14 → 2001-02-17
    Seismic survey in progress until 16 feb by M/V ramform explorer and M/V willbeest towing eight 6500 meter…
  44. HYDROLANT 530/012001-02-13 → 2001-02-16
    Seismic survey in progress until 15 feb by M/V veritas viking II towing six 6500 meter long cables in area…
  45. HYDROLANT 521/012001-02-12 → 2001-02-15
    Seismic survey in progress until 14 feb by M/V northern access towing 8704 meter long cable in area bound by…
  46. HYDROLANT 520/012001-02-12 → 2001-02-15
    Seismic survey in progress until 14 feb by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  47. HYDROLANT 519/012001-02-12 → 2001-02-15
    Submarine cable operations 120800Z to 150800Z feb by M/V polar prince along trackline between 03-24.2S…
  48. HYDROLANT 508/012001-02-11 → 2001-02-16
    Submarine cable operations in progress until 15 feb by M/V osa vigilant towing submersible along trackline…
  49. HYDROLANT 507/012001-02-11 → 2001-02-14
    Seismic survey in progress until 13 feb by M/V ramform explorer and M/V willbeest towing eight 6500 meter…
  50. HYDROLANT 491/012001-02-10 → 2001-02-15
    Seismic survey in progress until 14 feb by M/V western patriot towing seven 3000 meter long cables in area…

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.

Cable & pipeline work in the South Atlantic Ocean — page 82 · seahazards