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 522/022002-03-07 → 2002-03-09
    Seismic survey in progress until 100300Z mar by M/V ramform explorer towing eight 6852 meter long cables in…
  2. HYDROLANT 519/022002-03-06 → 2002-03-09
    Seismic survey in progress until 100300Z mar by M/V veritas viking II towing six 6500 meter long cables in…
  3. HYDROLANT 517/022002-03-06 → 2002-03-09
    Seismic survey in progress until 090300Z mar by M/V fohn towing six 6000 meter long cables in area bound by…
  4. HYDROLANT 516/022002-03-06 → 2002-03-09
    Seismic survey in progress until 100300Z mar by M/V cgg harmattan towing eight 6000 meter long cables in…
  5. HYDROLANT 510/022002-03-05 → 2002-03-09
    Seismic survey in progress until 08 mar by M/V bulldog towing fifty 25 meter long cables in area bound by…
  6. HYDROLANT 503/022002-03-04 → 2002-03-05
    Seismic survey in progress until 06 mar by M/V ramform victory towing ten 4800 meter long cables in area…
  7. HYDROLANT 502/022002-03-04 → 2002-03-07
    Seismic survey in progress until 070300Z mar by M/V ramform explorer towing eight 6852 meter long cables in…
  8. HYDROLANT 501/022002-03-04 → 2002-03-06
    Seismic survey in progress until 060300Z mar by M/V fohn towing six 6000 meter long cables in area bound by…
  9. HYDROLANT 489/022002-03-02 → 2002-03-06
    Seismic survey in progress until 060300Z mar by M/V cgg harmattan towing eight 6000 meter long cables in…
  10. HYDROLANT 488/022002-03-02 → 2002-03-06
    Seismic survey in progress until 060300Z mar by M/V veritas viking II towing six 6500 meter long cables in…
  11. HYDROLANT 478/022002-03-01 → 2002-03-04
    Seismic survey in progress until 03 mar by M/V ramform victory towing ten 4800 meter long cables in area…
  12. HYDROLANT 471/022002-02-28 → 2002-03-04
    Seismic survey in progress until 040300Z mar by M/V ramform explorer towing eight 6852 meter long cables in…
  13. HYDROLANT 461/022002-02-26 → 2002-03-01
    Seismic survey in progress until 28 feb by M/V ramform victory and M/V falcon explorer towing ten 4800 meter…
  14. HYDROLANT 460/022002-02-26 → 2002-03-02
    Seismic survey in progress until 020259Z mar by M/V cgg harmattan towing eight 6000 meter long cables in…
  15. HYDROLANT 458/022002-02-25 → 2002-02-28
    Seismic survey in progress until 280259Z feb by M/V fohn towing six 6000 meter long cables in area bound by…
  16. HYDROLANT 455/022002-02-25 → 2002-03-01
    Seismic survey in progress until 010259Z mar by M/V veritas viking II towing six 6500 meter long cables in…
  17. HYDROLANT 452/022002-02-25 → 2002-02-26
    Seismic survey in progress until 260159Z feb by M/V ramform explorer towing eight 6852 meter long cables in…
  18. HYDROLANT 421/022002-02-22 → 2002-02-26
    Seismic survey in progress until 260259Z feb by M/V cgg harmattan towing eight 6000 meter long cables in…
  19. HYDROLANT 407/022002-02-21 → 2002-02-25
    Seismic survey in progress until 250259Z feb by M/V veritas viking II towing six 6500 meter long cables in…
  20. HYDROLANT 391/022002-02-18 → 2002-02-21
    Seismic survey in progress until 210259Z feb by M/V veritas viking II towing six 6500 meter long cables in…
  21. HYDROLANT 388/022002-02-18 → 2002-02-23
    Seismic survey in progress until 230259Z feb by M/V fohn towing six 6000 meter long cables in area bound by…
  22. HYDROLANT 387/022002-02-18 → 2002-02-21
    Seismic survey in progress until 210159Z feb by M/V cgg harmattan towing eight 6000 meter long cables in…
  23. HYDROLANT 352/022002-02-11 → 2002-02-18
    Seismic survey in progress until 180159Z feb by M/V cgg harmattan towing eight 6000 meter long cables in…
  24. HYDROLANT 341/022002-02-10 → 2002-02-11
    Seismic survey 110200Z to 180159Z feb by M/V cgg harmattan towing eight 6000 meter long cables in area bound…
  25. HYDROLANT 336/022002-02-09 → 2002-02-18
    Seismic survey in progress until 180159Z feb by M/V fohn towing six 6000 meter long cables in area bound by…
  26. HYDROLANT 315/022002-02-07 → 2002-02-18
    Seismic survey in progress until 180159Z feb by M/V veritas viking II towing six 6500 meter long cables in…
  27. HYDROLANT 292/022002-02-05 → 2002-03-05
    Underwater cable operations in progress until further notice by M/V B.C
  28. HYDROLANT 270/022002-02-03 → 2002-02-07
    Seismic survey in progress until 070159Z feb by M/V veritas viking II towing six 6500 meter long cables in…
  29. HYDROLANT 264/022002-02-02 → 2002-02-09
    Seismic survey 040200Z to 090159Z feb by M/V fohn towing six 6000 meter long cables in area bound by 22-40S…
  30. HYDROLANT 260/022002-02-02 → 2002-02-08
    Seismic survey in progress until 090159Z feb by M/V cgg harmattan towing eight 6000 meter long cables in…
  31. HYDROLANT 258/022002-02-02 → 2002-02-05
    Seismic survey in progress until 060159Z feb by M/V veritas viking I towing six 6000 meter long cables in…
  32. HYDROLANT 223/022002-01-30 → 2002-02-02
    Seismic survey in progress until 020159Z feb by M/V veritas viking I towing six 6000 meter long cables in…
  33. HYDROLANT 221/022002-01-30 → 2002-02-02
    Seismic survey in progress until 020159Z feb by M/V cgg harmattan towing eight 6000 meter long cables in…
  34. HYDROLANT 203/022002-01-28 → 2002-02-02
    Seismic survey in progress until 020159Z feb by M/V veritas viking II towing six 6500 meter long cables in…
  35. HYDROLANT 199/022002-01-27 → 2002-01-29
    Seismic cable adrift in 22-14.9S 040-08.8W
  36. HYDROLANT 179/022002-01-25 → 2002-01-29
    Seismic survey in progress until 290159Z jan by M/V cgg harmattan towing eight 6000 meter long cables in…
  37. HYDROLANT 177/022002-01-25 → 2002-02-12
    Submarine cable operations 281200Z jan to 121200Z feb by M/V maersk defender towing 700 meter long cable…
  38. HYDROLANT 170/022002-01-24 → 2002-01-30
    Seismic survey in progress until 300159Z jan by M/V veritas viking I towing six 6000 meter long cables in…
  39. HYDROLANT 169/022002-01-24 → 2002-01-28
    Seismic survey in progress until 280159Z jan by M/V veritas viking II towing six 6500 meter long cables in…
  40. HYDROLANT 153/022002-01-22 → 2002-01-23
    Seismic survey in progress until 230159Z jan by M/V veritas viking II towing six 6500 meter long cables in…
  41. HYDROLANT 139/022002-01-19 → 2002-01-25
    Seismic survey in progress until 250159Z jan by M/V cgg harmattan towing eight 6000 meter long cables in…
  42. HYDROLANT 119/022002-01-17 → 2002-01-22
    Seismic survey in progress until 220159Z jan by M/V veritas viking II towing six 6500 meter long cables in…
  43. HYDROLANT 96/022002-01-14 → 2002-01-19
    Seismic survey in progress until 190159Z jan by M/V cgg harmattan towing eight 6000 meter long cables in…
  44. HYDROLANT 92/022002-01-13 → 2002-01-16
    Seismic survey in progress until 160159Z jan by M/V veritas viking II towing six 6500 meter long cables in…
  45. HYDROLANT 85/022002-01-12 → 2002-01-23
    Submarine cable operations by M/V maersk defender towing 700 meter long cable: a. 130900Z to 152100Z jan…
  46. HYDROLANT 76/022002-01-11 → 2002-01-17
    Seismic survey in progress until 170159Z jan by M/V ramform explorer towing eight 6853 meter long cables in…
  47. HYDROLANT 68/022002-01-10 → 2002-01-12
    Seismic survey in progress until 130159Z jan by M/V fohn towing six 6000 meter long cables in area bound by…
  48. HYDROLANT 48/022002-01-08 → 2002-01-13
    Seismic survey in progress until 130159Z jan by M/V veritas viking II towing six 6500 meter long cables in…
  49. HYDROLANT 47/022002-01-08 → 2002-01-11
    Seismic survey in progress until 110159Z jan by M/V ramform explorer towing eight 6853 meter long cables in…
  50. HYDROLANT 46/022002-01-08 → 2002-01-10
    Seismic survey in progress until 100159Z jan by M/V fohn towing six 6000 meter long cables in area bound by…

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 75 · seahazards