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 · 51 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 865/022002-04-14 → 2002-04-17
    Seismic survey in progress until 170259Z apr by M/V veritas viking II towing six 6500 meter long cables in…
  2. HYDROLANT 858/022002-04-13 → 2002-04-16
    Seismic survey in progress until 160259Z apr by M/V cgg harmattan towing eight 6000 meter long cables in…
  3. HYDROLANT 856/022002-04-13 → 2002-04-18
    Seismic survey 14 thru 17 apr by M/V ramform victory towing eight 6600 meter long cables in area bound by…
  4. HYDROLANT 855/022002-04-13 → 2002-04-16
    Seismic survey in progress until 160259Z apr by M/V ramform explorer towing eight 6852 meter long cables in…
  5. HYDROLANT 819/022002-04-10 → 2002-04-14
    Seismic survey in progress until 13 apr by M/V ramform victory towing eight 6600 meter long cables in area…
  6. HYDROLANT 818/022002-04-10 → 2002-04-13
    Seismic survey in progress until 130259Z apr by M/V ramform explorer towing eight 6852 meter long cables in…
  7. HYDROLANT 817/022002-04-10 → 2002-04-14
    Seismic survey in progress until 140259Z apr by M/V veritas viking II towing six 6500 meter long cables in…
  8. HYDROLANT 813/022002-04-09 → 2002-04-13
    Seismic survey in progress until 130259Z apr by M/V cgg harmattan towing eight 6000 meter long cables in…
  9. HYDROLANT 808/022002-04-09 → 2002-04-10
    Seismic survey in progress until 100259Z apr by M/V veritas viking II towing six 6500 meter long cables in…
  10. HYDROLANT 807/022002-04-09 → 2002-04-10
    Seismic survey in progress until 100300Z apr by M/V ramform explorer towing eight 6852 meter long cables in…
  11. HYDROLANT 784/022002-04-06 → 2002-04-10
    Seismic survey in progress until 09 apr by M/V ramform victory towing eight 6600 meter long cables in area…
  12. HYDROLANT 775/022002-04-05 → 2002-04-09
    Seismic survey in progress until 090300Z apr by M/V cgg harmattan towing eight 6000 meter long cables in…
  13. HYDROLANT 767/022002-04-04 → 2002-04-07
    Seismic survey in progress until 070300Z apr by M/V ramform explorer towing eight 6852 meter long cables in…
  14. HYDROLANT 756/022002-04-02 → 2002-04-04
    Seismic survey in progress until 040300Z apr by M/V ramform explorer towing eight 6852 meter long cables in…
  15. HYDROLANT 753/022002-04-02 → 2002-04-05
    Seismic survey in progress until 050300Z apr by M/V cgg harmattan towing eight 6000 meter long cables in…
  16. HYDROLANT 752/022002-04-02 → 2002-04-06
    Seismic survey in progress until 05 apr by M/V ramform victory towing eight 6600 meter long cables in area…
  17. HYDROLANT 751/022002-04-02 → 2002-04-06
    Submarine cable operations in progress until 101500Z apr by M/V lodbrog towing submersible along trackline…
  18. HYDROLANT 748/022002-04-02 → 2002-04-07
    Seismic survey 030300Z to 070259Z apr by M/V veritas viking II towing six 6500 meter long cables in area…
  19. HYDROLANT 747/022002-04-01 → 2002-04-02
    Seismic survey in progress until 020300Z apr by M/V ramform explorer towing eight 6852 meter long cables in…
  20. HYDROLANT 722/022002-03-29 → 2002-04-01
    Seismic survey in progress until 31 mar by M/V ramform victory towing eight 6600 meter long cables in area…
  21. HYDROLANT 721/022002-03-29 → 2002-04-02
    Seismic survey in progress until 020300Z apr by M/V cgg harmattan towing eight 6000 meter long cables in…
  22. HYDROLANT 714/022002-03-28 → 2002-04-02
    Submarine cable operations 281500Z mar to 101500Z apr by M/V lodbrog towing submersible along trackline…
  23. HYDROLANT 712/022002-03-28 → 2002-04-02
    Seismic survey in progress until 030259Z apr by M/V veritas viking II towing six 6500 meter long cables in…
  24. HYDROLANT 711/022002-03-28 → 2002-03-28
    Submarine cable operations 281700Z mar to 101700Z apr by M/V lodbrog towing submersible along trackline…
  25. HYDROLANT 684/022002-03-25 → 2002-03-29
    Seismic survey in progress until 290300Z mar by M/V ramform explorer towing eight 6852 meter long cables in…
  26. HYDROLANT 683/022002-03-25 → 2002-03-28
    Seismic survey in progress until 280300Z mar by M/V veritas viking II towing six 6500 meter long cables in…
  27. HYDROLANT 681/022002-03-25 → 2002-03-29
    Seismic survey in progress until 290300Z mar by M/V cgg harmattan towing eight 6000 meter long cables in…
  28. HYDROLANT 667/022002-03-23 → 2002-03-29
    Seismic survey in progress until 28 mar by M/V ramform victory towing eight 6600 meter long cables in area…
  29. HYDROLANT 662/022002-03-22 → 2002-03-28
    Submarine cable operations 221700Z mar to 041700Z apr by M/V lodbrog towing submersible along trackline…
  30. HYDROLANT 652/022002-03-21 → 2002-03-25
    Seismic survey in progress until 250300Z mar by M/V ramform explorer towing eight 6852 meter long cables in…
  31. HYDROLANT 651/022002-03-21 → 2002-03-25
    Seismic survey in progress until 250300Z mar by M/V veritas viking II towing six 6500 meter long cables in…
  32. HYDROLANT 643/022002-03-20 → 2002-03-25
    Seismic survey in progress until 250300Z mar by M/V cgg harmattan towing eight 6000 meter long cables in…
  33. HYDROLANT 642/022002-03-20 → 2002-03-23
    Seismic survey in progress until 22 mar by M/V ramform victory towing eight 6600 meter long cables in area…
  34. HYDROLANT 635/022002-03-19 → 2002-03-26
    Seismic survey in progress until 25 mar by M/V bulldog towing fifty 25 meter long cables in area bound by…
  35. HYDROLANT 630/022002-03-18 → 2002-03-21
    Seismic survey in progress until 210300Z mar by M/V ramform explorer towing eight 6852 meter long cables in…
  36. HYDROLANT 629/022002-03-18 → 2002-03-21
    Seismic survey in progress until 210300Z mar by M/V veritas viking II towing six 6500 meter long cables in…
  37. HYDROLANT 621/022002-03-17 → 2002-03-20
    Seismic survey in progress until 19 mar by M/V ramform victory towing eight 6600 meter long cables in area…
  38. HYDROLANT 616/022002-03-16 → 2002-03-20
    Seismic survey in progress until 200259Z mar by M/V cgg harmattan towing eight 6000 meter long cables in…
  39. HYDROLANT 604/022002-03-15 → 2002-03-22
    Submarine cable operations 151700Z to 281700Z mar by M/V lodbrog towing submarine along trackline joining…
  40. HYDROLANT 601/022002-03-15 → 2002-03-15
    Submarine cable operations 161700Z to 281700Z mar by M/V lodbrog towing submarine along trackline joining…
  41. HYDROLANT 592/022002-03-14 → 2002-03-18
    Seismic survey in progress until 180300Z mar by M/V veritas viking II towing six 6500 meter long cables in…
  42. HYDROLANT 591/022002-03-14 → 2002-03-18
    Seismic survey 141800Z to 180300Z mar by M/V ramform explorer towing eight 6852 meter long cables in area…
  43. HYDROLANT 575/022002-03-12 → 2002-03-17
    Seismic survey in progress until 16 mar by M/V ramform victory towing eight 6600 meter long cables in area…
  44. HYDROLANT 571/022002-03-12 → 2002-03-19
    Seismic survey in progress until 18 mar by M/V bulldog towing fifty 25 meter long cables in area bound by…
  45. HYDROLANT 569/022002-03-12 → 2002-03-16
    Seismic survey 130300Z to 160300Z mar by M/V cgg harmattan towing eight 6000 meter long cables in area bound…
  46. HYDROLANT 545/022002-03-09 → 2002-03-12
    Seismic survey in progress until 120300Z mar by M/V cgg harmattan towing eight 6000 meter long cables in…
  47. HYDROLANT 543/022002-03-09 → 2002-03-14
    Seismic survey in progress until 140300Z mar by M/V veritas viking II towing six 6500 meter long cables in…
  48. HYDROLANT 541/022002-03-09 → 2002-03-14
    Seismic survey in progress until 140300Z mar by M/V ramform explorer towing eight 6852 meter long cables in…
  49. HYDROLANT 540/022002-03-09 → 2002-03-12
    Seismic survey in progress until 11 mar by M/V bulldog towing fifty 25 meter long cables in area bound by…
  50. HYDROLANT 532/022002-03-08 → 2002-03-12
    Seismic survey in progress until 12 mar by M/V ramform victory towing eight 6600 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 74 · seahazards