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 · 18 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 869/072007-05-23 → 2007-05-28
    Seismic survey in progress until 300259Z may by M/V cgg laurentian towing six 6000 meter long cables in area…
  2. HYDROLANT 868/072007-05-23 → 2007-05-27
    Seismic survey in progress until 270259Z may by M/V rig supporter in area bound by 24-14.92S 044-24.75W,…
  3. HYDROLANT 859/072007-05-22 → 2007-05-27
    Seismic survey in progress until 270300Z may by M/V cgg alize towing ten 6500 meter long cables in area…
  4. HYDROLANT 858/072007-05-22 → 2007-05-23
    Seismic survey in progress until 230259Z may by M/V discoverer towing 10500 meter long cable in area bound…
  5. HYDROLANT 843/072007-05-20 → 2007-05-22
    Seismic survey in progress until 220259Z may by M/V discoverer towing 10500 meter long cable in area bound…
  6. HYDROLANT 828/072007-05-17 → 2007-05-23
    Seismic survey 180300Z to 230259Z may by M/V ramform valiant towing ten 6600 meter long cables in area bound…
  7. HYDROLANT 826/072007-05-17 → 2007-05-23
    Seismic survey in progress until 230259Z may by M/V cgg laurentian towing six 6000 meter long cables in area…
  8. HYDROLANT 820/072007-05-16 → 2007-05-23
    Seismic survey 180300Z to 230259Z may by M/V hawk explorer towing 10000 meter long cable in area bound by…
  9. HYDROLANT 819/072007-05-16 → 2007-05-18
    Seismic survey in progress until 230259Z may by M/V discoverer towing 10.5 meter long cable in area bound by…
  10. HYDROLANT 809/072007-05-15 → 2007-05-21
    Seismic survey in progress until 210300Z may by M/V cgg alize towing ten 6.5 meter long cables in area bound…
  11. HYDROLANT 784/072007-05-11 → 2007-05-12
    Seismic survey in progress until 160259Z may by M/V discovere towing 10.5 meter long cable in area bound by…
  12. HYDROLANT 780/072007-05-10 → 2007-05-15
    Seismic survey in progress until 150300Z may by M/V cgg alize towing ten 6500 meter long cables in area…
  13. HYDROLANT 772/072007-05-09 → 2007-05-17
    Seismic survey in progress until 170259Z may by M/V cgg laurentian towing six 6000 meter long cables in area…
  14. HYDROLANT 765/072007-05-08 → 2007-05-11
    Seismic survey in progress until 120259Z may by M/V discovere in area bound by 22-45S 040-45W, 22-50S…
  15. HYDROLANT 741/072007-05-03 → 2007-05-09
    Seismic survey in progress until 100259Z may by M/V cgg laurentian towing six 6000 meter long cables in area…
  16. HYDROLANT 740/072007-05-03 → 2007-05-09
    Seismic survey in progress until 100259Z may by M/V ramform valiant towing ten 6600 meter long cables in…
  17. HYDROLANT 739/072007-05-03 → 2007-05-09
    Seismic survey in progress until 090300Z may by M/V cgg alize towing six 4000 meter long cables in area…
  18. HYDROLANT 708/072007-04-28 → 2007-05-03
    Seismic survey in progress until 030259Z may by M/V rig supporter with submersible in area bound by…
  19. HYDROLANT 706/072007-04-28 → 2007-05-03
    Seismic survey in progress until 030300Z may by M/V cgg alize towing six 4000 meter long cables in area…
  20. HYDROLANT 688/072007-04-25 → 2007-05-03
    Seismic survey in progress until 030259Z may by M/V geco triton towing ten 7410 meter long cables in area…
  21. HYDROLANT 687/072007-04-25 → 2007-05-03
    Seismic survey in progress until 030259Z may by M/V western patriot towing eight 6000 meter long cables in…
  22. HYDROLANT 686/072007-04-25 → 2007-05-03
    Seismic survey in progress until 030259Z may by M/V cgg laurentian towing six 6000 meter long cables in area…
  23. HYDROLANT 685/072007-04-25 → 2007-05-03
    Seismic survey in progress until 030259Z may by M/V ramform valiant towing ten 6600 meter long cables in…
  24. HYDROLANT 680/072007-04-24 → 2007-04-28
    Seismic survey in progress until 280259Z apr by M/V rig supporter with submersible in area bound by…
  25. HYDROLANT 656/072007-04-21 → 2007-04-27
    Seismic survey in progress until 270300Z apr by M/V cgg alize towing six 4000 meter long cables in area…
  26. HYDROLANT 638/072007-04-18 → 2007-04-25
    Seismic survey in progress until 250259Z apr by M/V western patriot towing eight 6000 meter long cables in…
  27. HYDROLANT 636/072007-04-18 → 2007-04-19
    Seismic survey 210300Z to 250259Z apr by M/V hawk explorer towing 10000 meter long cable in area bound by…
  28. HYDROLANT 635/072007-04-18 → 2007-04-25
    Seismic survey in progress until 250259Z apr by M/V cgg laurentian towing six 6000 meter long cables in area…
  29. HYDROLANT 634/072007-04-18 → 2007-04-25
    Seismic survey in progress until 250259Z apr by M/V ramform valiant towing ten 6600 meter long cables in…
  30. HYDROLANT 633/072007-04-18 → 2007-04-25
    Seismic survey in progress until 250259Z apr by M/V geco triton towing ten 7410 meter long cables in area…
  31. HYDROLANT 627/072007-04-17 → 2007-04-18
    Seismic survey in progress until 210259Z apr by M/V hawk explorer towing 10000 meter long cable in area…
  32. HYDROLANT 620/072007-04-14 → 2007-04-21
    Seismic survey in progress until 210300Z apr by M/V cgg alize towing six 4000 meter long cables in area…
  33. HYDROLANT 618/072007-04-14 → 2007-04-17
    Seismic survey in progress until 170259Z apr by M/V hawk explorer towing 10000 meter long cable in area…
  34. HYDROLANT 604/072007-04-12 → 2007-04-15
    Seismic survey 121200Z to 151759Z apr by M/V hawk explorer towing 10000 meter long cable in area bound by…
  35. HYDROLANT 603/072007-04-12 → 2007-04-18
    Seismic survey in progress until 180259Z apr by M/V western patriot towing eight 6000 meter long cables in…
  36. HYDROLANT 602/072007-04-12 → 2007-04-18
    Seismic survey in progress until 180259Z apr by M/V ramform valiant towing ten 6600 meter long cables in…
  37. HYDROLANT 601/072007-04-12 → 2007-04-18
    Seismic survey in progress until 180259Z apr by M/V cgg laurentian towing six 6000 meter long cables in area…
  38. HYDROLANT 600/072007-04-12 → 2007-04-18
    Seismic survey in progress until 180259Z apr by M/V geco triton towing ten 7410 meter long cables in area…
  39. HYDROLANT 599/072007-04-12 → 2007-04-12
    Seismic survey in progress until 121159Z apr by M/V hawk explorer towing 10000 meter long cable in area…
  40. HYDROLANT 590/072007-04-10 → 2007-04-11
    Seismic survey in progress until 111159Z apr by M/V hawk explorer towing 10000 meter long cable in area…
  41. HYDROLANT 579/072007-04-09 → 2007-04-15
    Seismic survey in progress until 150300Z apr by M/V cgg alize towing six 4000 meter long cables in area…
  42. HYDROLANT 577/072007-04-09 → 2007-04-10
    Seismic survey in progress until 101359Z apr by M/V hawk explorer towing one 10000 meter long cable in area…
  43. HYDROLANT 554/072007-04-06 → 2007-04-09
    Seismic survey in progress until 090259Z apr by M/V hawk explorer towing 10000 meter long cable in area…
  44. HYDROLANT 553/072007-04-06 → 2007-04-12
    Seismic survey in progress until 120259Z apr by M/V western patriot towing eight 6000 meter long cables in…
  45. HYDROLANT 552/072007-04-06 → 2007-04-12
    Seismic survey in progress until 120259Z apr by M/V geco triton towing ten 7410 meter long cables in area…
  46. HYDROLANT 551/072007-04-06 → 2007-04-12
    Seismic survey in progress until 120259Z apr by M/V ramform valiant towing ten 6600 meter long cables in…
  47. HYDROLANT 550/072007-04-06 → 2007-04-12
    Seismic survey in progress until 120259Z apr by M/V cgg laurentian towing six 6000 meter long cables in area…
  48. HYDROLANT 535/072007-04-04 → 2007-04-06
    Seismic survey in progress until 060259Z apr by M/V hawk explorer towing 10000 meter long cable in area…
  49. HYDROLANT 529/072007-04-03 → 2007-04-09
    Seismic survey in progress until 090300Z apr by M/V cgg alize towing six 4000 meter long cables in area…
  50. HYDROLANT 528/072007-04-03 → 2007-04-04
    Seismic survey in progress until 060259Z apr by M/V hawk explorer towing 10000 meter long cable 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 52 · seahazards