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 476/012001-02-09 → 2001-02-12
    Seismic survey in progress until 11 feb by M/V northern access towing 8704 meter long cable in area bound by…
  2. HYDROLANT 475/012001-02-09 → 2001-02-12
    Seismic survey in progress until 11 feb by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  3. HYDROLANT 474/012001-02-09 → 2001-02-15
    Seismic survey in progress until 14 feb by M/V geco tau towing 8300 meter long cable in area bound by 02-25S…
  4. HYDROLANT 456/012001-02-07 → 2001-02-11
    Submarine cable operations in progress until 110800Z feb by M/V polar prince in area bound by 03-38.3S…
  5. HYDROLANT 452/012001-02-07 → 2001-02-13
    Seismic survey in progress until 12 feb by M/V veritas viking II towing six 6500 meter long cables in area…
  6. HYDROLANT 451/012001-02-07 → 2001-02-11
    Submarine cable operations in progress until 10 feb by M/V osa vigilant towing submersible along trackline…
  7. HYDROLANT 448/012001-02-07 → 2001-02-10
    Seismic survey in progress until 09 feb by M/V ramform explorer and M/V willbeest towing eight 6500 meter…
  8. HYDROLANT 432/012001-02-06 → 2001-02-09
    Seismic survey in progress until 08 feb by M/V northern access towing 8704 meter long cable in area bound by…
  9. HYDROLANT 431/012001-02-06 → 2001-02-09
    Seismic survey in progress until 08 feb by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  10. HYDROLANT 426/012001-02-05 → 2001-02-09
    Seismic survey in progress until 08 feb by M/V geco tau towing 8300 meter long cable in area bound by 02-25S…
  11. HYDROLANT 417/012001-02-05 → 2001-02-10
    Seismic survey in progress until 09 feb by M/V western patriot towing seven 3000 meter long cables in area…
  12. HYDROLANT 414/012001-02-04 → 2001-02-07
    Seismic survey in progress until 06 feb by M/V veritas viking II towing six 6500 meter long cables in area…
  13. HYDROLANT 407/012001-02-04 → 2001-02-07
    Seismic survey in progress until 06 feb by M/V ramform explorer and M/V willbeest towing eight 6500 meter…
  14. HYDROLANT 403/012001-02-03 → 2001-02-06
    Seismic survey in progress until 05 feb by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  15. HYDROLANT 402/012001-02-03 → 2001-02-06
    Seismic survey in progress until 05 feb by M/V northern access towing 8704 meter long cable in area bound by…
  16. HYDROLANT 388/012001-02-02 → 2001-02-04
    Seismic survey in progress until 03 feb by M/V ramform vanguard and M/V kondor explorer towing ten 4800…
  17. HYDROLANT 378/012001-02-01 → 2001-02-04
    Seismic survey in progress until 03 feb by M/V veritas viking II towing six 6500 meter long cables in area…
  18. HYDROLANT 377/012001-02-01 → 2001-02-05
    Seismic survey in progress until 05 feb by M/V geco tau towing 8300 meter long cable in area bound by 02-25S…
  19. HYDROLANT 363/012001-01-31 → 2001-02-03
    Seismic survey in progress until 02 feb by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  20. HYDROLANT 361/012001-01-31 → 2001-02-03
    Seismic survey in progress until 02 feb by M/V northern access towing 8704 meter long cable in area bound by…
  21. HYDROLANT 360/012001-01-31 → 2001-02-05
    Seismic survey in progress until 04 feb by M/V western patriot towing seven 3000 meter long cables in area…
  22. HYDROLANT 349/012001-01-30 → 2001-02-04
    Seismic survey in progress until 03 feb by M/V ramform explorer and M/V willbeest towing eight 6500 meter…
  23. HYDROLANT 337/012001-01-29 → 2001-02-02
    Seismic survey in progress until 01 feb by M/V ramform vanguard and M/V kondor explorer towing ten 4800…
  24. HYDROLANT 335/012001-01-29 → 2001-02-02
    Submarine cable operations in progress until 01 feb by M/V polar prince along trackline joining 03-29.4S…
  25. HYDROLANT 325/012001-01-28 → 2001-01-31
    Seismic survey in progress until 30 jan by M/V northern access towing 8704 meter long cable in area bound by…
  26. HYDROLANT 324/012001-01-28 → 2001-01-31
    Seismic survey in progress until 30 jan by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  27. HYDROLANT 323/012001-01-28 → 2001-02-01
    Seismic survey in progress until 01 feb by M/V geco tau towing 8300 meter long cable in area bound by 02-25S…
  28. HYDROLANT 314/012001-01-27 → 2001-01-28
    Seismic survey in progress until 30 jan by M/V geco tau towing 8300 meter long cable in area bound by 02-25S…
  29. HYDROLANT 299/012001-01-26 → 2001-01-29
    Submarine cable operations in progress until 290001Z jan by M/V polar prince along trackline joining…
  30. HYDROLANT 298/012001-01-26 → 2001-01-28
    Seismic survey in progress until 27 jan by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  31. HYDROLANT 288/012001-01-25 → 2001-02-01
    Seismic survey in progress until 31 jan by M/V veritas viking II towing six 6500 meter long cables in area…
  32. HYDROLANT 287/012001-01-25 → 2001-01-29
    Seismic survey in progress until 28 jan by M/V ramform vanguard and M/V kondor explorer towing ten 4800…
  33. HYDROLANT 286/012001-01-25 → 2001-01-30
    Seismic survey in progress until 29 jan by M/V ramform explorer and M/V willbeest towing eight 6500 meter…
  34. HYDROLANT 276/012001-01-24 → 2001-01-25
    Seismic survey in progress until 24 jan by M/V ramform explorer and M/V willbeest towing eight 6500 meter…
  35. HYDROLANT 271/012001-01-23 → 2001-01-31
    Seismic survey in progress until 30 jan by M/V western patriot towing seven 3000 meter long cables in area…
  36. HYDROLANT 269/012001-01-23 → 2001-01-26
    Submarine cable operations in progress until 260400Z jan by M/V polar prince along trackline joining…
  37. HYDROLANT 268/012001-01-23 → 2001-01-25
    Seismic survey in progress until 24 jan by M/V ramform vanguard and M/V kondor explorer towing ten 4800…
  38. HYDROLANT 266/012001-01-23 → 2001-01-27
    Seismic survey 24 thru 27 jan by M/V geco tau towing 8300 meter long cable in area bound by 02-25S 041-20W,…
  39. HYDROLANT 265/012001-01-23 → 2001-01-25
    Submarine cable operations 232000Z to 250900Z jan by M/V teliri along trackline joining 23-09S 043-00W,…
  40. HYDROLANT 252/012001-01-22 → 2001-01-25
    Seismic survey in progress until 24 jan by M/V ramform victory, M/V falcon explorer and M/V sanco sea towing…
  41. HYDROLANT 251/012001-01-22 → 2001-01-25
    Seismic survey in progress until 24 jan by M/V veritas viking II towing six 6500 meter long cables in area…
  42. HYDROLANT 250/012001-01-22 → 2001-01-23
    Submarine cable operations in progress until 261100Z jan by M/V polar prince along trackline joining…
  43. HYDROLANT 243/012001-01-21 → 2001-01-23
    Seismic survey in progress until 22 jan by M/V ramform vanguard and M/V kondor explorer towing ten 4800…
  44. HYDROLANT 235/012001-01-20 → 2001-01-23
    Seismic survey in progress until 22 jan by M/V ramform explorer and M/V willbeest towing eight 6500 meter…
  45. HYDROLANT 234/012001-01-20 → 2001-01-23
    Seismic survey in progress until 22 jan by M/V northern access towing 8704 meter long cable in area bound by…
  46. HYDROLANT 233/012001-01-20 → 2001-01-23
    Seismic survey in progress until 22 jan by M/V cgg harmattan towing six 6482 meter long cables in area bound…
  47. HYDROLANT 232/012001-01-20 → 2001-01-23
    Seismic survey in progress until 22 jan by M/V geco tau towing 8300 meter long cable in area bound by 02-11S…
  48. HYDROLANT 226/012001-01-19 → 2001-01-22
    Seismic survey in progress until further notice by M/V veritas viking II towing six 3.6 mile long cables in…
  49. HYDROLANT 220/012001-01-19 → 2001-01-22
    Submarine cable operations 191400Z to 261100Z jan by M/V polar prince along trackline joining 03-44.1S…
  50. HYDROLANT 204/012001-01-18 → 2001-01-20
    Seismic survey in progress until 19 jan by M/V geco tau towing 8300 meter long cable in area bound by 02-32S…

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 83 · seahazards