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 3244/002000-09-20 → 2000-09-23
    Seismic survey in progress until 22 sep by M/V ramform vanguard and M/V kondor explorer towing ten 4800…
  2. HYDROLANT 3243/002000-09-20 → 2000-09-23
    Seismic survey in progress until 22 sep by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  3. HYDROLANT 3242/002000-09-20 → 2000-09-23
    Seismic survey in progress until 23 sep by M/V geco tau towing 8300 meter long cable in area bound by 04-41S…
  4. HYDROLANT 3241/002000-09-20 → 2000-09-22
    Seismic survey in progress until 21 sep by M/V ramform explorer towing eight 6500 meter long cables in area…
  5. HYDROLANT 3228/002000-09-19 → 2000-09-20
    Seismic survey in progress until 21 sep by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  6. HYDROLANT 3227/002000-09-19 → 2000-09-22
    Seismic survey in progress until 21 sep by M/V cgg harmattan towing 6000 meter long cable in area bound by…
  7. HYDROLANT 3226/002000-09-19 → 2000-09-20
    Seismic survey in progress until 21 sep by M/V geco tau towing 8300 meter long cable in area bound by 04-41S…
  8. HYDROLANT 3225/002000-09-19 → 2000-09-20
    Seismic survey in progress until 21 sep by M/V ramform explorer towing eight 6500 meter long cables in area…
  9. HYDROLANT 3217/002000-09-18 → 2000-09-20
    Seismic survey in progress until 19 sep by M/V northern access towing 8704 meter long cable in area bound by…
  10. HYDROLANT 3201/002000-09-16 → 2000-09-21
    Seismic survey in progress until 20 sep by M/V western regent and M/V kenda towing eight 4000 meter long…
  11. HYDROLANT 3200/002000-09-16 → 2000-09-19
    Seismic survey in progress until 18 sep by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  12. HYDROLANT 3199/002000-09-16 → 2000-09-19
    Seismic survey in progress until 18 sep by M/V ramform explorer towing eight 6500 meter long cables in area…
  13. HYDROLANT 3198/002000-09-16 → 2000-09-16
    Seismic survey in progress until 18 sep by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  14. HYDROLANT 3197/002000-09-16 → 2000-09-19
    Seismic survey in progress until 18 sep by M/V cgg harmattan towing 6000 meter long cable in area bound by…
  15. HYDROLANT 3193/002000-09-15 → 2000-09-16
    Seismic survey in progress until 15 sep by M/V ramform explorer towing eight 6500 meter long cables in area…
  16. HYDROLANT 3174/002000-09-14 → 2000-09-18
    Seismic survey in progress until 17 sep by M/V northern access towing 8704 meter long cable in area bound by…
  17. HYDROLANT 3166/002000-09-13 → 2000-09-16
    Seismic survey in progress until 15 sep by M/V cgg harmattan towing 6000 meter long cable in area bound by…
  18. HYDROLANT 3165/002000-09-13 → 2000-09-16
    Seismic survey in progress until 15 sep by M/V western cropaud and M/V western piranha towing cable in area…
  19. HYDROLANT 3157/002000-09-12 → 2000-09-19
    Seismic survey in progress until 20 sep by M/V geco tau towing 8300 meter long cable in area bound by 04-38S…
  20. HYDROLANT 3156/002000-09-12 → 2000-09-16
    Seismic survey in progress until 15 sep by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  21. HYDROLANT 3155/002000-09-12 → 2000-09-12
    Seismic survey in progress until 14 sep by M/V ramform explorer towing eight 6500 meter long cables in area…
  22. HYDROLANT 3154/002000-09-12 → 2000-09-17
    Cable laying operations 121435Z to 170055Z sep by cableship sovereign along trackline joining 14-43S…
  23. HYDROLANT 3151/002000-09-11 → 2000-09-18
    Seismic survey in progress until 17 sep by M/V new venture towing 8500 meter long cable in area bound by…
  24. HYDROLANT 3138/002000-09-11 → 2000-09-14
    Seismic survey in progress until 13 sep by M/V northern access towing 8704 meter long cable in area bound by…
  25. HYDROLANT 3130/002000-09-10 → 2000-09-13
    Seismic survey in progress until 12 sep by M/V cgg harmattan towing 6000 meter long cable in area bound by…
  26. HYDROLANT 3129/002000-09-10 → 2000-09-13
    Seismic survey in progress until 12 sep by M/V western cropaud and M/V western piranha towing cable in area…
  27. HYDROLANT 3128/002000-09-10 → 2000-09-16
    Seismic survey in progress until 15 sep by M/V western regent and M/V kenda towing eight 4000 meter long…
  28. HYDROLANT 3127/002000-09-10 → 2000-10-02
    Seismic survey in progress until 01 oct by M/V astro ubarana towing 661 meter long cable along trackline…
  29. HYDROLANT 3121/002000-09-09 → 2000-09-12
    Seismic survey in progress until 11 sep by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  30. HYDROLANT 3109/002000-09-08 → 2000-09-11
    Seismic survey in progress until 10 sep by M/V northern access towing 8704 meter long cable in area bound by…
  31. HYDROLANT 3107/002000-09-08 → 2000-09-10
    Seismic survey in progress until 09 sep by M/V cgg harmattan towing 6000 meter long cable along trackline…
  32. HYDROLANT 3096/002000-09-07 → 2000-09-10
    Cable laying operations in progress until 09 sep by M/V western cropaud and M/V western piranha along…
  33. HYDROLANT 3086/002000-09-06 → 2000-09-09
    Seismic survey in progress until 08 sep by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  34. HYDROLANT 3085/002000-09-06 → 2000-09-12
    Seismic survey in progress until 11 sep by M/V ramform explorer towing eight 6500 meter long cables in area…
  35. HYDROLANT 3084/002000-09-06 → 2000-09-12
    Cable laying operations 061517Z to 121435Z sep by cableship sovereign along trackline joining 12-58.3S…
  36. HYDROLANT 3070/002000-09-04 → 2000-09-07
    Cable laying operations in progress until 06 sep by M/V western cropaud and M/V western piranha along…
  37. HYDROLANT 3062/002000-09-04 → 2000-09-10
    Seismic survey in progress until 09 sep by M/V western regent and M/V kenda towing eight 4000 meter long…
  38. HYDROLANT 3057/002000-09-03 → 2000-09-06
    Seismic survey in progress until 05 sep by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  39. HYDROLANT 3056/002000-09-03 → 2000-09-06
    Seismic survey in progress until 05 sep by M/V cgg harmattan towing six 6500 meter long cables in area bound…
  40. HYDROLANT 3054/002000-09-03 → 2000-09-03
    Seismic survey in progress until 05 sep by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  41. HYDROLANT 3046/002000-09-02 → 2000-09-05
    Cable laying operations in progress until 04 sep by cableship heimdal along trackline between 03-44S 038-26W…
  42. HYDROLANT 3038/002000-09-01 → 2000-09-11
    Seismic survey in progress until 10 sep by M/V geco tau towing 8300 meter long cable in area bound by 04-00S…
  43. HYDROLANT 3037/002000-09-01 → 2000-09-04
    Seismic survey in progress until 03 sep by M/V northern access towing 8704 meter long cable in area bound by…
  44. HYDROLANT 3035/002000-09-01 → 2000-09-03
    Seismic survey in progress until 02 sep by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  45. HYDROLANT 3034/002000-09-01 → 2000-09-05
    Cable laying operations in progress until 051800Z sep by cableship sovereign along trackline joining…
  46. HYDROLANT 3033/002000-09-01 → 2000-09-05
    Seismic survey in progress until 04 sep by M/V ramform explorer towing eight 6500 meter long cables in area…
  47. HYDROLANT 3026/002000-08-31 → 2000-09-01
    Seismic survey in progress until 31 aug by M/V northern access towing 8704 meter long cable in area bound by…
  48. HYDROLANT 3024/002000-08-31 → 2000-09-03
    Seismic survey in progress until 02 sep by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  49. HYDROLANT 3023/002000-08-31 → 2000-09-04
    Seismic survey in progress until 04 sep by M/V western regent and M/V kenda towing eight 4000 meter long…
  50. HYDROLANT 3020/002000-08-31 → 2000-09-02
    Cable laying operations in progress until 021500Z sep by M/V teliri towing 112 meter long cable along…

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 89 · seahazards