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 971/002000-03-18 → 2000-03-21
    Seismic survey in progress until 20 mar by M/V ramform victory towing eight 7038 meter long cables in area…
  2. HYDROLANT 970/002000-03-18 → 2000-03-21
    Seismic survey in progress until 20 mar by M/V geco tau towing 8334 meter long cable in area bound by 23-58S…
  3. HYDROLANT 969/002000-03-18 → 2000-03-21
    Seismic survey in progress until 20 mar by M/V ramform explorer and M/V orka 1 towing ten 4800 meter long…
  4. HYDROLANT 968/002000-03-18 → 2000-03-21
    Seismic survey in progress until 20 mar by M/V geo arctic towing 6000 meter long cable in area bound by…
  5. HYDROLANT 958/002000-03-17 → 2000-03-21
    Seismic survey in progress until 20 mar by M/V polar search towing four 6300 meter long cables in area bound…
  6. HYDROLANT 948/002000-03-16 → 2000-03-19
    Seismic survey in progress until 18 mar by M/V geco diamond towing eight 5556 meter long cables in area…
  7. HYDROLANT 946/002000-03-16 → 2000-03-24
    Cable laying operations in progress until 23 mar by M/V coastal connector between 24-08S 046-32W and 24-55S…
  8. HYDROLANT 944/002000-03-16 → 2000-03-18
    Seismic survey in progress until 18 mar by M/V western atlas towing 5000 meter long cable in area bound by…
  9. HYDROLANT 943/002000-03-16 → 2000-03-18
    Seismic survey in progress until 19 mar by M/V geo arctic towing 9100 meter long cable in area bound by…
  10. HYDROLANT 937/002000-03-15 → 2000-03-18
    Seismic survey in progress until 17 mar by M/V ramform explorer and M/V orka 1 towing ten 4800 meter long…
  11. HYDROLANT 934/002000-03-15 → 2000-03-18
    Seismic survey in progress until 17 mar by M/V geco tau towing 8334 meter long cable in area bound by 23-58S…
  12. HYDROLANT 933/002000-03-15 → 2000-03-18
    Seismic survey in progress until 17 mar by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  13. HYDROLANT 932/002000-03-15 → 2000-03-18
    Seismic survey in progress until 17 mar by M/V northern access towing 8705 meter long cable in area bound by…
  14. HYDROLANT 931/002000-03-15 → 2000-03-18
    Seismic survey in progress until 17 mar by M/V ramform victory towing eight 7050 meter long cables in area…
  15. HYDROLANT 926/002000-03-14 → 2000-03-17
    Seismic survey in progress until 16 mar by M/V polar search towing four 6300 meter long cables in area bound…
  16. HYDROLANT 924/002000-03-14 → 2000-03-18
    Seismic survey in progress until 17 mar by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  17. HYDROLANT 921/002000-03-13 → 2000-03-15
    Seismic survey in progress until 14 mar by M/V ramform victory towing eight 7050 meter long cables in area…
  18. HYDROLANT 920/002000-03-13 → 2000-03-14
    Seismic survey in progress until 13 mar by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  19. HYDROLANT 918/002000-03-13 → 2000-03-16
    Seismic survey in progress until 15 mar by M/V geco diamond towing eight 5556 meter long cables in area…
  20. HYDROLANT 916/002000-03-13 → 2000-03-16
    Seismic survey 131300Z to 162100Z mar by M/V akademik nikolaj straknov towing 1000 meter long cable in area…
  21. HYDROLANT 915/002000-03-13 → 2000-03-16
    Seismic survey in progress until 15 mar by M/V western atlas towing 5000 meter long cable in area bound by…
  22. HYDROLANT 903/002000-03-12 → 2000-03-15
    Seismic survey in progress until 14 mar by M/V ramform explorer and M/V orka 1 towing ten 4800 meter long…
  23. HYDROLANT 899/002000-03-12 → 2000-03-14
    Seismic survey in progress until 13 mar by M/V polar search towing four 6300 meter long cables in area bound…
  24. HYDROLANT 898/002000-03-12 → 2000-03-15
    Seismic survey in progress until 14 mar by M/V geco tau towing 8334 meter long cable in area bound by 23-58S…
  25. HYDROLANT 897/002000-03-12 → 2000-03-15
    Seismic survey in progress until 14 mar by M/V ramford vanguard and M/V falcon explorer towing ten 4800…
  26. HYDROLANT 896/002000-03-12 → 2000-03-15
    Seismic survey in progress until 14 mar by M/V northern access towing 8705 meter long cable in area bound by…
  27. HYDROLANT 887/002000-03-10 → 2000-03-13
    Seismic survey in progress until 12 mar by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  28. HYDROLANT 881/002000-03-10 → 2000-03-13
    Seismic survey in progress until 12 mar by M/V ramform victory towing eight 7050 meter long cables in area…
  29. HYDROLANT 879/002000-03-10 → 2000-03-13
    Seismic survey in progress until 12 mar by M/V geco diamond towing eight 5556 meter long cables in area…
  30. HYDROLANT 867/002000-03-09 → 2000-03-12
    Seismic survey in progress until 11 mar by M/V northern access towing 8710 meter long cable in area bound by…
  31. HYDROLANT 866/002000-03-09 → 2000-03-12
    Seismic survey in progress until 11 mar by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  32. HYDROLANT 865/002000-03-09 → 2000-03-12
    Seismic survey in progress until 11 mar by M/V geco tau towing 8334 meter long cable in area bound by 25-10S…
  33. HYDROLANT 853/002000-03-08 → 2000-03-12
    Seismic survey in progress until 11 mar by M/V western atlas towing 5000 meter long cable in area bound by…
  34. HYDROLANT 833/002000-03-06 → 2000-03-12
    Seismic survey in progress until 11 mar by M/V polar search towing four 6300 meter long cables in area bound…
  35. HYDROLANT 832/002000-03-06 → 2000-03-10
    Seismic survey in progress until 09 mar by M/V ramform victory towing eight 7050 meter long cables in area…
  36. HYDROLANT 830/002000-03-06 → 2000-03-09
    Seismic survey in progress until 08 mar by M/V geco tau towing 8334 meter long cable in area bound by 25-30S…
  37. HYDROLANT 829/002000-03-06 → 2000-03-09
    Seismic survey in progress until 08 mar by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  38. HYDROLANT 827/002000-03-06 → 2000-03-12
    Seismic survey in progress until 11 mar by M/V ramform explorer and M/V orka 1 towing eight 4800 meter long…
  39. HYDROLANT 826/002000-03-06 → 2000-03-08
    Seismic survey in progress until 07 mar by M/V northern access towing 8710 meter long cable in area bound by…
  40. HYDROLANT 808/002000-03-04 → 2000-03-10
    Seismic survey in progress until 09 mar by M/V geco diamond towing eight 5556 meter long cables in area…
  41. HYDROLANT 792/002000-03-03 → 2000-03-06
    Seismic survey in progress until 05 mar by M/V polar search towing four 6300 meter long cables in area bound…
  42. HYDROLANT 791/002000-03-03 → 2000-03-06
    Seismic survey in progress until 06 mar by M/V ramform victory towing eight 7050 meter long cables in area…
  43. HYDROLANT 789/002000-03-03 → 2000-03-06
    Seismic survey in progress until 05 mar by M/V geco tau towing 8334 meter long cable in area bound by 22-26S…
  44. HYDROLANT 788/002000-03-03 → 2000-03-06
    Seismic survey in progress until 05 mar by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  45. HYDROLANT 786/002000-03-03 → 2000-03-06
    Seismic survey in progress until 05 mar by M/V ramform explorer and M/V okra 1 towing eight 4800 meter long…
  46. HYDROLANT 785/002000-03-03 → 2000-03-06
    Seismic survey in progress until 05 mar by M/V northern access towing 8710 meter long cable in area bound by…
  47. HYDROLANT 777/002000-03-02 → 2000-03-03
    Seismic survey in progress until 02 mar by M/V polar search towing four 6300 meter long cables in area bound…
  48. HYDROLANT 770/002000-03-01 → 2000-03-03
    Seismic survey in progress until 02 mar by M/V northern access towing 8710 meter long cable in area bound by…
  49. HYDROLANT 769/002000-03-01 → 2000-03-04
    Seismic survey in progress until 03 mar by M/V geo arctic towing 9100 meter long cable in area bound by…
  50. HYDROLANT 768/002000-03-01 → 2000-03-04
    Seismic survey in progress until 03 mar by M/V geco diamond towing eight 5556 meter long cables in area…

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 98 · seahazards