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 45/022002-01-08 → 2002-01-09
    Seismic survey in progress until 090159Z jan by M/V cgg harmattan towing eight 6000 meter long cables in…
  2. HYDROLANT 17/022002-01-04 → 2002-01-08
    Seismic survey in progress until 080159Z jan by M/V ramform explorer towing eight 6853 meter long cables in…
  3. HYDROLANT 9/022002-01-03 → 2002-01-07
    Seismic survey 040200Z to 070159Z jan by M/V cgg harmattan towing eight 6000 meter long cables in area bound…
  4. HYDROLANT 7/022002-01-03 → 2002-01-08
    Seismic survey 050200Z to 080159Z jan by M/V veritas viking II towing six 6500 meter long cables in area…
  5. HYDROLANT 1/022002-01-01 → 2002-01-04
    Seismic survey 020200Z to 040159Z jan by M/V ramform explorer towing eight 6853 meter long cables in area…
  6. HYDROLANT 3304/012001-12-31 → 2002-01-03
    Seismic survey 010200Z to 050159Z jan by M/V veritas viking II towing six 6500 meter long cables in area…
  7. HYDROLANT 3292/012001-12-29 → 2002-01-03
    Seismic survey 300200Z dec to 040159Z jan by M/V cgg harmattan towing eight 6000 meter long cables in area…
  8. HYDROLANT 3285/012001-12-28 → 2001-12-29
    Seismic survey in progress until 290159Z dec by M/V cgg harmattan towing eight 6000 meter long cables in…
  9. HYDROLANT 3265/012001-12-24 → 2001-12-27
    Seismic survey in progress until 270159Z dec by M/V cgg harmattan towing eight 6000 meter long cables in…
  10. HYDROLANT 3264/012001-12-24 → 2001-12-27
    Seismic survey in progress until 270159Z dec by M/V veritas viking I towing six 6000 meter long cables in…
  11. HYDROLANT 3248/012001-12-22 → 2001-12-31
    Seismic survey in progress until 310159Z dec by M/V veritas viking II towing six 6500 meter long cables in…
  12. HYDROLANT 3246/012001-12-22 → 2002-01-01
    Seismic survey in progress until 01 jan by M/V ramform explorer towing eight 6853 meter long cables in area…
  13. HYDROLANT 3232/012001-12-21 → 2001-12-22
    Seismic survey in progress until 220159Z dec by M/V ramform explorer towing eight 6853 meter long cables in…
  14. HYDROLANT 3226/012001-12-20 → 2001-12-24
    Seismic survey in progress until 240159Z dec by M/V veritas viking II towing six 6500 meter long cables in…
  15. HYDROLANT 3224/012001-12-20 → 2001-12-24
    Seismic survey in progress until 240159Z dec by M/V cgg harmattan towing eight 6000 meter long cables in…
  16. HYDROLANT 3211/012001-12-19 → 2001-12-22
    Seismic survey in progress until 220159Z dec by M/V ramform explorer towing eight 6853 meter long cables in…
  17. HYDROLANT 3193/012001-12-16 → 2001-12-20
    Seismic survey in progress until 200300Z dec by M/V veritas viking II towing six 6500 meter long cables in…
  18. HYDROLANT 3192/012001-12-16 → 2001-12-19
    Seismic survey in progress until 200300Z dec by M/V ramform explorer towing eight 6853 meter long cables in…
  19. HYDROLANT 3180/012001-12-15 → 2001-12-20
    Seismic survey in progress until 200159Z dec by M/V cgg harmattan towing eight 6000 meter long cables in…
  20. HYDROLANT 3167/012001-12-13 → 2001-12-16
    Seismic survey in progress until 170159Z dec by M/V veritas viking II towing six 6500 meter long cables in…
  21. HYDROLANT 3157/012001-12-12 → 2001-12-15
    Seismic survey in progress until 150159Z dec by M/V cgg harmattan towing eight 6000 meter long cables in…
  22. HYDROLANT 3156/012001-12-12 → 2001-12-13
    Seismic survey in progress until 150159Z dec by M/V veritas viking II towing six 6500 meter long cables in…
  23. HYDROLANT 3149/012001-12-11 → 2001-12-12
    Seismic survey in progress until 130159Z dec by M/V cgg harmattan towing eight 6000 meter long cables in…
  24. HYDROLANT 3148/012001-12-11 → 2001-12-12
    Seismic survey in progress until 130159Z dec by M/V veritas viking II towing six 6500 meter long cables in…
  25. HYDROLANT 3144/012001-12-11 → 2001-12-16
    Seismic survey in progress until 160159Z dec by M/V ramform explorer towing eight 6853 meter long cables in…
  26. HYDROLANT 3124/012001-12-08 → 2001-12-11
    Seismic survey in progress until 110159Z dec by M/V veritas viking II towing six 6500 meter long cables in…
  27. HYDROLANT 3105/012001-12-07 → 2001-12-11
    Seismic survey in progress until 110159Z dec by M/V ramform explorer towing eight 6853 meter long cables in…
  28. HYDROLANT 3104/012001-12-07 → 2001-12-11
    Seismic survey in progress until 110159Z dec by M/V cgg harmattan towing eight 6000 meter long cables in…
  29. HYDROLANT 3097/012001-12-06 → 2001-12-08
    Seismic survey in progress until 080159Z dec by M/V veritas viking II towing six 6500 meter long cables in…
  30. HYDROLANT 3090/012001-12-05 → 2001-12-06
    Seismic survey in progress until 080159Z dec by M/V veritas viking II towing six 6500 meter long cables in…
  31. HYDROLANT 3081/012001-12-04 → 2001-12-07
    Seismic survey in progress until 070159Z dec by M/V ramform explorer towing eight 6853 meter long cables in…
  32. HYDROLANT 3079/012001-12-04 → 2001-12-07
    Seismic survey in progress until 090159Z dec by M/V cgg harmattan towing eight 6000 meter long cables in…
  33. HYDROLANT 3066/012001-12-02 → 2001-12-05
    Seismic survey in progress until 050159Z dec by M/V veritas viking II towing six 6500 meter long cables in…
  34. HYDROLANT 3047/012001-11-29 → 2001-12-04
    Seismic survey in progress until 032359Z dec by M/V cgg harmattan towing eight 6000 meter long cables in…
  35. HYDROLANT 3046/012001-11-29 → 2001-12-04
    Seismic survey in progress until 032359Z dec by M/V ramform explorer towing eight 6853 meter long cables in…
  36. HYDROLANT 3041/012001-11-28 → 2001-11-29
    Seismic survey in progress until 012359Z dec by M/V ramform explorer towing eight 6853 meter long cables in…
  37. HYDROLANT 3040/012001-11-28 → 2001-12-02
    Seismic survey in progress until 012359Z dec by M/V veritas viking II towing six 6500 meter long cables in…
  38. HYDROLANT 3038/012001-11-28 → 2001-11-29
    Seismic survey in progress until 302359Z nov by M/V cgg harmattan towing eight 6000 meter long cables in…
  39. HYDROLANT 3031/012001-11-27 → 2001-11-28
    Seismic survey in progress until 292359Z nov by M/V ramform explorer towing eight 6853 meter long cables in…
  40. HYDROLANT 3025/012001-11-26 → 2001-11-27
    Seismic survey in progress until 292359Z nov by M/V ramform explorer towing eight 6853 meter long cables in…
  41. HYDROLANT 3018/012001-11-25 → 2001-11-27
    Seismic survey in progress until 262359Z nov by M/V cgg harmattan towing eight 6000 meter long cables in…
  42. HYDROLANT 2990/012001-11-23 → 2001-11-28
    Seismic survey in progress until 272359Z nov by M/V veritas viking II towing six 6500 meter long cables in…
  43. HYDROLANT 2984/012001-11-22 → 2001-11-26
    Seismic survey in progress until 252359Z nov by M/V ramform explorer towing eight 6853 meter long cables in…
  44. HYDROLANT 2958/012001-11-18 → 2001-11-23
    Seismic survey in progress until 222359Z nov by M/V veritas viking II towing six 6500 meter long cables in…
  45. HYDROLANT 2956/012001-11-18 → 2001-11-22
    Seismic survey in progress until 212359Z nov by M/V ramform explorer towing eight 6853 meter long cables in…
  46. HYDROLANT 2951/012001-11-17 → 2001-11-24
    Seismic survey in progress until 232359Z nov by M/V cgg harmattan towing eight 6000 meter long cables in…
  47. HYDROLANT 2942/012001-11-15 → 2001-11-18
    Seismic survey in progress until 172359Z nov by M/V ramform explorer towing eight 6853 meter long cables in…
  48. HYDROLANT 2932/012001-11-14 → 2001-11-18
    Seismic survey in progress until 172359Z nov by M/V veritas viking II towing six 6500 meter long cables in…
  49. HYDROLANT 2930/012001-11-14 → 2001-11-17
    Seismic survey in progress until 162359Z nov by M/V cgg harmattan towing eight 6000 meter long cables along…
  50. HYDROLANT 2904/012001-11-11 → 2001-11-14
    Seismic survey in progress until 132359Z nov by M/V veritas viking II towing six 6500 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 76 · seahazards