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 1062/012001-04-04 → 2001-04-06
    Seismic survey in progress until 05 apr by M/V northern access towing 4800 meter long cable in area bound by…
  2. HYDROLANT 1061/012001-04-04 → 2001-04-06
    Seismic survey in progress until 05 apr by M/V veritas viking II towing six 6500 meter long cables in area…
  3. HYDROLANT 1047/012001-04-02 → 2001-04-04
    Seismic survey in progress until 05 apr by M/V northern access towing 4800 meter long cable in area bound by…
  4. HYDROLANT 1043/012001-04-02 → 2001-04-06
    Seismic survey in progress until 05 apr by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  5. HYDROLANT 1042/012001-04-02 → 2001-04-05
    Seismic survey in progress until 04 apr by M/V geco tau towing 10000 meter long cable in area bound by…
  6. HYDROLANT 1037/012001-04-01 → 2001-04-06
    Seismic survey in progress until 05 apr by M/V western patriot towing seven 3000 meter long cables in area…
  7. HYDROLANT 1036/012001-04-01 → 2001-04-02
    Seismic survey in progress until 03 apr by M/V northern access towing 4800 meter long cable in area bound by…
  8. HYDROLANT 1017/012001-03-30 → 2001-04-04
    Seismic survey in progress until 03 apr by M/V veritas viking II towing six 6500 meter long cables in area…
  9. HYDROLANT 1016/012001-03-30 → 2001-04-02
    Seismic survey in progress until 01 apr by M/V geco tau towing 8300 meter long cable in area bound by 02-27S…
  10. HYDROLANT 1005/012001-03-29 → 2001-03-31
    Seismic survey in progress until 30 mar by M/V northern access towing 4800 meter long cable in area bound by…
  11. HYDROLANT 1004/012001-03-29 → 2001-03-30
    Seismic survey in progress until 29 mar by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  12. HYDROLANT 1003/012001-03-29 → 2001-03-30
    Seismic survey in progress until 29 mar by M/V geco tau towing 8300 meter long cable in area bound by 02-25S…
  13. HYDROLANT 996/012001-03-28 → 2001-03-29
    Seismic survey in progress until 29 mar by M/V northern access towing 4800 meter long cable in area bound by…
  14. HYDROLANT 989/012001-03-27 → 2001-03-29
    Seismic survey in progress until 29 mar by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  15. HYDROLANT 988/012001-03-27 → 2001-03-30
    Seismic survey in progress until 29 mar by M/V veritas viking II towing six 6500 meter long cables in area…
  16. HYDROLANT 957/012001-03-24 → 2001-03-27
    Seismic survey in progress until 26 mar by M/V northern access towing 4800 meter long cable in area bound by…
  17. HYDROLANT 955/012001-03-24 → 2001-03-29
    Underwater cable operations in progress until 28 mar by M/V osa vigilant towing submersible along trackline…
  18. HYDROLANT 954/012001-03-24 → 2001-04-01
    Seismic survey in progress until 31 mar by M/V western patriot towing seven 3000 meter long cables in area…
  19. HYDROLANT 941/012001-03-23 → 2001-03-27
    Seismic survey in progress until 26 mar by M/V veritas viking II towing six 6500 meter long cables in area…
  20. HYDROLANT 940/012001-03-23 → 2001-03-27
    Seismic survey in progress until 26 mar by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  21. HYDROLANT 939/012001-03-23 → 2001-03-26
    Seismic survey in progress until 25 mar by M/V geco tau towing 8300 meter long cable in area bound by 02-22S…
  22. HYDROLANT 926/012001-03-22 → 2001-03-24
    Seismic survey in progress until 26 mar by M/V western patriot towing seven 3000 meter long cables in area…
  23. HYDROLANT 917/012001-03-21 → 2001-03-24
    Seismic survey in progress until 23 mar by M/V northern access towing 4800 meter long cable in area bound by…
  24. HYDROLANT 911/012001-03-20 → 2001-03-23
    Seismic survey in progress until 22 mar by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  25. HYDROLANT 910/012001-03-20 → 2001-03-23
    Seismic survey in progress until 22 mar by M/V geco tau towing 8300 meter long cable in area bound by 02-20S…
  26. HYDROLANT 901/012001-03-19 → 2001-03-20
    Seismic survey in progress until 19 mar by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  27. HYDROLANT 900/012001-03-19 → 2001-03-24
    Underwater cable operations in progress until 23 mar by M/V osa vigilant towing submersible along trackline…
  28. HYDROLANT 899/012001-03-19 → 2001-03-29
    Seismic survey 200001Z to 290001Z mar by M/V meteor towing 1000 meter long cable in area bound by 24-20S…
  29. HYDROLANT 892/012001-03-18 → 2001-03-23
    Seismic survey in progress until 22 mar by M/V veritas viking II towing six 6500 meter long cables in area…
  30. HYDROLANT 891/012001-03-18 → 2001-03-21
    Seismic survey in progress until 20 mar by M/V northern access towing 4800 meter long cable in area bound by…
  31. HYDROLANT 889/012001-03-18 → 2001-03-21
    Seismic survey in progress until 20 mar by M/V western patriot towing seven 3000 meter long cables in area…
  32. HYDROLANT 888/012001-03-18 → 2001-03-20
    Seismic survey in progress until 19 mar by M/V geco tau towing 8300 meter long cable in area bound by 02-18S…
  33. HYDROLANT 882/012001-03-17 → 2001-03-18
    Seismic survey in progress until 19 mar by M/V geco tau towing 10186 meter long cable in area bound by…
  34. HYDROLANT 881/012001-03-17 → 2001-03-19
    Seismic survey in progress until 18 mar by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  35. HYDROLANT 871/012001-03-16 → 2001-03-18
    Seismic survey in progress until 17 mar by M/V veritas viking II towing six 6500 meter long cables in area…
  36. HYDROLANT 870/012001-03-16 → 2001-03-17
    Seismic survey in progress until 16 mar by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  37. HYDROLANT 860/012001-03-15 → 2001-03-18
    Seismic survey in progress until 17 mar by M/V western patriot towing seven 3000 meter long cables in area…
  38. HYDROLANT 859/012001-03-15 → 2001-03-19
    Underwater cable operations in progress until 18 mar by M/V osa vigilant towing submersible along trackline…
  39. HYDROLANT 857/012001-03-15 → 2001-03-18
    Seismic survey in progress until 17 mar by M/V northern access towing 4800 meter long cable in area bound by…
  40. HYDROLANT 840/012001-03-13 → 2001-03-16
    Seismic survey in progress until 15 mar by M/V veritas viking II towing six 6500 meter long cables in area…
  41. HYDROLANT 839/012001-03-13 → 2001-03-16
    Seismic survey in progress until 15 mar by M/V ramform vanguard and M/V kondor explorer towing ten 4800…
  42. HYDROLANT 838/012001-03-13 → 2001-03-16
    Seismic survey in progress until 15 mar by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  43. HYDROLANT 825/012001-03-12 → 2001-03-15
    Seismic survey in progress until 14 mar by M/V western patriot towing seven 3000 meter long cables in area…
  44. HYDROLANT 823/012001-03-12 → 2001-03-15
    Seismic survey in progress until 14 mar by M/V northern access towing 4800 meter long cable in area bound by…
  45. HYDROLANT 813/012001-03-11 → 2001-03-17
    Seismic survey by M/V geco tau towing 10186 meter long cable: a. in progress until 13 mar in area bound by…
  46. HYDROLANT 812/012001-03-11 → 2001-03-15
    Underwater cable operations in progress until 14 mar by M/V osa vigilant towing submersible along trackline…
  47. HYDROLANT 811/012001-03-11 → 2001-03-13
    Seismic survey in progress until 12 mar by M/V ramform vanguard and M/V sankosea towing eight 6500 meter…
  48. HYDROLANT 805/012001-03-10 → 2001-03-19
    Seismic survey 110300Z to 210300Z mar by M/V meteor towing 1000 meter long cable in area bound by 30-00S…
  49. HYDROLANT 804/012001-03-10 → 2001-03-11
    Seismic survey in progress until 12 mar by M/V geco tau towing 8300 meter long cable in area bound by 02-28S…
  50. HYDROLANT 803/012001-03-10 → 2001-03-12
    Seismic survey in progress until 11 mar by M/V northern access towing 4800 meter long cable 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 81 · seahazards