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 517/072007-03-31 → 2007-04-06
    Seismic survey in progress until 060259Z apr by M/V western patriot towing eight 6000 meter long cables in…
  2. HYDROLANT 516/072007-03-31 → 2007-04-04
    Seismic survey 311500Z mar to 060259Z apr by M/V rig supporter in area bound by 24-15.00S 044-46.20W,…
  3. HYDROLANT 515/072007-03-31 → 2007-04-06
    Seismic survey in progress until 060259Z apr by M/V ramform valiant towing ten 6000 meter long cables in…
  4. HYDROLANT 514/072007-03-31 → 2007-04-06
    Seismic survey in progress until 060259Z apr by M/V cgg laurentian towing eight 6000 meter long cables in…
  5. HYDROLANT 503/072007-03-29 → 2007-04-03
    Seismic survey in progress until 030259Z apr by M/V hawk explorer towing 1000 meter long cable in area bound…
  6. HYDROLANT 495/072007-03-28 → 2007-04-03
    Seismic survey in progress until 030300Z apr by M/V cgg alize towing six 4000 meter long cables in area…
  7. HYDROLANT 494/072007-03-28 → 2007-03-29
    Seismic survey in progress until 310259Z mar by M/V rig supporter in area bound by 24-15S 044-25W, 24-15S…
  8. HYDROLANT 488/072007-03-27 → 2007-04-06
    Seismic survey in progress until 060259Z apr by M/V geco triton towing ten 7410 meter long cables in area…
  9. HYDROLANT 484/072007-03-26 → 2007-03-28
    Seismic survey in progress until 280259Z mar by M/V hawk explorer towing 1000 meter long cable in area bound…
  10. HYDROLANT 480/072007-03-24 → 2007-03-31
    Seismic survey in progress until 310259Z mar by M/V western patriot towing eight 6000 meter long cables in…
  11. HYDROLANT 479/072007-03-24 → 2007-03-31
    Seismic survey in progress until 310259Z mar by M/V ramform valiant towing ten 6600 meter long cables in…
  12. HYDROLANT 478/072007-03-24 → 2007-03-31
    Seismic survey in progress until 310259Z mar by M/V cgg laurentian towing eight 6000 meter long cables in…
  13. HYDROLANT 472/072007-03-23 → 2007-03-27
    Seismic survey in progress until 270259Z mar by M/V hawk explorer towing 1000 meter long cable in area bound…
  14. HYDROLANT 471/072007-03-23 → 2007-03-28
    Seismic survey in progress until 280259Z mar by M/V rig supporter in area bound by 24-15S 044-25W, 24-15S…
  15. HYDROLANT 459/072007-03-22 → 2007-03-27
    Seismic survey in progress until 270259Z mar by M/V geco triton towing ten 7410 meter long cables in area…
  16. HYDROLANT 458/072007-03-22 → 2007-03-23
    Seismic survey in progress until 230259Z mar by M/V hawk explorer towing 1000 meter long cable in area bound…
  17. HYDROLANT 457/072007-03-22 → 2007-03-23
    Seismic survey in progress until 230259Z mar by M/V rig supporter in area bound by 24-15S 044-25W, 24-15S…
  18. HYDROLANT 456/072007-03-22 → 2007-03-28
    Seismic survey in progress until 280300Z mar by M/V cgg alize towing six 4000 meter long cables in area…
  19. HYDROLANT 445/072007-03-20 → 2007-03-22
    Seismic survey in progress until 240259Z mar by M/V hawk explorer towing 1000 meter long cable in area bound…
  20. HYDROLANT 424/072007-03-17 → 2007-03-24
    Seismic survey in progress until 240259Z mar by M/V cgg laurentian towing eight 6000 meter long cables in…
  21. HYDROLANT 423/072007-03-17 → 2007-03-24
    Seismic survey in progress until 240259Z mar by M/V ramform valiant towing ten 6600 meter long cables in…
  22. HYDROLANT 422/072007-03-17 → 2007-03-22
    Seismic survey in progress until 240259Z mar by M/V western patriot towing eight 6000 meter long cables in…
  23. HYDROLANT 421/072007-03-17 → 2006-03-22
    Seismic survey in progress until 220259Z mar by M/V rig supporter with submersible in area bound by 24-15S…
  24. HYDROLANT 403/072007-03-15 → 2007-03-22
    Seismic survey in progress until 220300Z mar by M/V cgg alize towing six 4000 meter long cables in area…
  25. HYDROLANT 387/072007-03-13 → 2007-03-17
    Seismic survey in progress until 170259Z mar by M/V rig supporter with submersible in area bound by 24-15S…
  26. HYDROLANT 379/072007-03-11 → 2007-03-13
    Seismic survey in progress until 14 mar by M/V rem angler in area bound by 00-37.85S 043-43.67W, 00-16.34S…
  27. HYDROLANT 376/072007-03-10 → 2007-03-17
    Seismic survey in progress until 170259Z mar by M/V ramform valiant towing ten 6600 meter long cables in…
  28. HYDROLANT 375/072007-03-10 → 2007-03-17
    Seismic survey in progress until 170259Z mar by M/V western patriot towing eight 6000 meter long cables in…
  29. HYDROLANT 374/072007-03-10 → 2007-03-17
    Seismic survey in progress until 170259Z mar by M/V cgg laurentian towing eight 6000 meter long cables in…
  30. HYDROLANT 373/072007-03-10 → 2007-03-15
    Seismic survey in progress until 150300Z mar by M/V cgg alize towing six 4000 meter long cables in area…
  31. HYDROLANT 354/072007-03-07 → 2007-03-11
    Seismic survey in progress until 10 mar by M/V rem angler in area bound by 00-37.85S 043-43.67W, 00-16.34S…
  32. HYDROLANT 348/072007-03-06 → 2007-03-10
    Seismic survey in progress until 100259Z mar by M/V western patriot towing eight 6000 meter long cables in…
  33. HYDROLANT 347/072007-03-06 → 2007-03-17
    Cable operations in progress until further notice by cableship teneo along trackline between 52-16.4S…
  34. HYDROLANT 341/072007-03-04 → 2007-03-10
    Seismic survey in progress until 100300Z mar by M/V cgg alize towing six 4000 meter long cables in area…
  35. HYDROLANT 335/072007-03-03 → 2007-03-05
    Seismic survey in progress until 04 mar by M/V rem angler in area bound by 00-37.85S 043-43.67W, 00-16.34S…
  36. HYDROLANT 332/072007-03-03 → 2007-03-10
    Seismic survey in progress until 100259Z mar by M/V cgg laurentian towing eight 6000 meter long cables in…
  37. HYDROLANT 329/072007-03-03 → 2007-03-10
    Seismic survey in progress until 100259Z mar by M/V ramform valiant towing ten 6600 meter long cables in…
  38. HYDROLANT 328/072007-03-03 → 2007-03-10
    Seismic survey in progress until 100259Z mar by M/V rig supporter in area bound by 24-15S 044-25W, 24-15S…
  39. HYDROLANT 297/072007-02-24 → 2007-03-04
    Seismic survey 260300Z feb to 040300Z mar by M/V cgg alize towing six 4000 meter long cables in area bound…
  40. HYDROLANT 296/072007-02-24 → 2007-03-03
    Seismic survey in progress until 030259Z mar by M/V cgg laurentian towing eight 6000 meter long cables in…
  41. HYDROLANT 290/072007-02-23 → 2007-03-03
    Seismic survey in progress until 030259Z mar by M/V rig supporter in area bound by 24-19.87S 044-07.98W,…
  42. HYDROLANT 289/072007-02-23 → 2007-02-24
    Seismic survey in progress until 030259Z mar by M/V cgg laurentian towing eight 6000 meter long cables in…
  43. HYDROLANT 288/072007-02-23 → 2007-03-03
    Seismic survey in progress until 030259Z mar by M/V ramform valiant towing ten 6600 meter long cables in…
  44. HYDROPAC 316/072007-02-22 → 2007-03-16
    Cable operations in progress until 15 mar by cableships chamarel and rene descartes within twenty miles of…
  45. HYDROLANT 262/072007-02-18 → 2007-02-23
    Seismic survey in progress until 230259Z feb by M/V cgg alize towing ten 6000 meter long cables in area…
  46. HYDROLANT 251/072007-02-16 → 2007-02-18
    Seismic survey in progress until 230259Z feb by M/V western patriot towing eight 6000 meter long cables in…
  47. HYDROLANT 250/072007-02-16 → 2007-03-06
    Cable operations in progress until further notice by cableship teneo along trackline between 51-35.4S…
  48. HYDROLANT 248/072007-02-15 → 2007-02-23
    Seismic survey in progress until 230259Z feb by M/V ramform valiant towing ten 6600 meter long cables in…
  49. HYDROLANT 235/072007-02-13 → 2007-02-16
    Seismic survey in progress until 160259Z feb by M/V western patriot towing eight 6000 meter long cables in…
  50. HYDROLANT 228/072007-02-12 → 2007-02-13
    Seismic survey in progress until 230259Z feb by M/V western patriot towing eight 6000 meter long cables in…

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 53 · seahazards