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 425/002000-02-04 → 2000-02-06
    Seismic survey in progress until 05 feb by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  2. HYDROLANT 424/002000-02-04 → 2000-02-07
    Seismic survey in progress until 06 feb by M/V akademik nikolaj straknov towing 1500 meter long cable in…
  3. HYDROLANT 423/002000-02-04 → 2000-02-05
    Seismic survey in progress until 04 feb by M/V northerm access towing one 8000 meter long cable and four 100…
  4. HYDROLANT 415/002000-02-03 → 2000-02-05
    Seismic survey in progress until 04 feb by M/V ramform victory towing 6500 meter long cable in area bound by…
  5. HYDROLANT 414/002000-02-03 → 2000-02-06
    Seismic survey in progress until 05 feb by M/V geo arctic towing 16700 meter long cable in area bound by…
  6. HYDROLANT 413/002000-02-03 → 2000-02-04
    Seismic survey in progress until 04 feb by M/V northerm access towing one 8000 meter long cable and four 100…
  7. HYDROLANT 404/002000-02-02 → 2000-02-03
    Seismic survey in progress until 04 feb by M/V ramform victory towing 6500 meter long cable in area bound by…
  8. HYDROLANT 403/002000-02-02 → 2000-02-05
    Seismic survey in progress until 04 feb by M/V ramform vanguard towing 4500 meter long cable in area bound…
  9. HYDROLANT 402/002000-02-02 → 2000-02-04
    Seismic survey in progress until 03 feb by M/V polar search towing 8520 meter long cable in area bound by…
  10. HYDROLANT 400/002000-02-02 → 2000-02-05
    Seismic survey in progress until 04 feb by M/V northerm access towing one 8000 meter long cable and four 100…
  11. HYDROLANT 398/002000-02-02 → 2000-02-04
    Seismic survey in progress until 03 feb by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  12. HYDROLANT 396/002000-02-02 → 2000-02-04
    Seismic survey in progress until 03 feb by M/V geco marlin towing 8400 meter long cable along trackline…
  13. HYDROLANT 395/002000-02-02 → 2000-02-04
    Seismic survey in progress until 03 feb by M/V geco diamond towing eight 6000 meter long cables in area…
  14. HYDROLANT 393/002000-02-02 → 2000-02-05
    Seismic survey in progress until 04 feb by M/V ramform explorer towing 4500 meter long cable in area bound…
  15. HYDROLANT 392/002000-02-02 → 2000-02-03
    Seismic survey 03 thru 05 feb by M/V geo arctic towing 16700 meter long cable in area bound by 24-19S…
  16. HYDROLANT 376/002000-02-01 → 2000-02-04
    Seismic survey in progress until 03 feb by M/V geco tau towing four 4600 meter long cables in area bound by…
  17. HYDROLANT 375/002000-02-01 → 2000-02-02
    Seismic survey in progress until 03 feb by M/V geco eagle towing eight 8000 meter long cables in area bound…
  18. HYDROLANT 374/002000-02-01 → 2000-02-05
    Seismic survey in progress until 04 feb by M/V western atlas towing 5000 meter long cable in area bound by…
  19. HYDROLANT 364/002000-01-31 → 2000-02-02
    Seismic survey 01 thru 03 feb by M/V ramform vanguard towing 4500 meter long cable in area bound by 24-00S…
  20. HYDROLANT 363/002000-01-31 → 2000-02-02
    Seismic survey in progress until 01 feb by M/V geco diamond towing eight 6000 meter long cables in area…
  21. HYDROLANT 361/002000-01-31 → 2000-02-02
    Seismic survey in progress until 02 feb by M/V northerm access towing one 8000 meter long cable and four 100…
  22. HYDROLANT 360/002000-01-31 → 2000-02-02
    Seismic survey in progress until 02 feb by M/V ramform viking towing 4500 meter long cable in area bound by…
  23. HYDROLANT 359/002000-01-31 → 2000-02-02
    Seismic survey in progress until 02 feb by M/V geo arctic towing 16688 meter long cable in area bound by…
  24. HYDROLANT 356/002000-01-31 → 2000-02-02
    Seismic survey in progress until 02 feb by M/V geco marlin towing 8400 meter long cable in area bound by…
  25. HYDROLANT 350/002000-01-30 → 2000-02-01
    Seismic survey in progress until 31 jan by M/V ramform explorer towing 4800 meter long cable in area bound…
  26. HYDROLANT 345/002000-01-30 → 2000-02-04
    Seismic survey 300200Z jan to 060200Z feb by M/V akademic nikolaj towing 1500 meter long cable in area bound…
  27. HYDROLANT 343/002000-01-29 → 2000-02-02
    Seismic survey 30 jan thru 01 feb by M/V ramform victory towing 6500 meter long cable in area bound by…
  28. HYDROLANT 329/002000-01-28 → 2000-01-31
    Seismic survey in progress until 30 jan by M/V northerm access towing one 8000 meter long cable and four 100…
  29. HYDROLANT 328/002000-01-28 → 2000-01-31
    Seismic survey in progress until 30 jan by M/V geco marlin towing 8400 meter long cable in area bound by…
  30. HYDROLANT 326/002000-01-28 → 2000-01-31
    Seismic survey in progress until 30 jan by M/V ramform vanguard towing 4500 meter long cable in area bound…
  31. HYDROLANT 321/002000-01-28 → 2000-01-31
    Seismic survey in progress until 30 jan by M/V geco tau towing four 4600 meter long cables in area bound by…
  32. HYDROLANT 319/002000-01-28 → 2000-01-31
    Seismic survey in progress until 30 jan by M/V ramform viking towing 4500 meter long cable in area bound by…
  33. HYDROLANT 317/002000-01-28 → 2000-01-31
    Seismic survey in progress until 30 jan by M/V geo arctic towing 16688 meter long cable in area bound by…
  34. HYDROLANT 315/002000-01-28 → 2000-01-29
    Seismic survey in progress until 30 jan by M/V ramform victory towing 6500 meter long cable in area bound by…
  35. HYDROLANT 313/002000-01-28 → 2000-01-29
    Seismic survey in progress until 30 jan by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  36. HYDROLANT 271/002000-01-25 → 2000-01-28
    Seismic survey in progress until 27 jan by M/V ramform victory towing 6500 meter long cable in area bound by…
  37. HYDROLANT 270/002000-01-25 → 2000-01-28
    Seismic survey in progress until 27 jan by M/V ramform vanguard towing 4500 meter long cable in area bound…
  38. HYDROLANT 269/002000-01-25 → 2000-01-28
    Seismic survey in progress until 27 jan by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  39. HYDROLANT 268/002000-01-25 → 2000-01-28
    Seismic survey in progress until 27 jan by M/V geco diamond towing eight 6000 meter long cables in area…
  40. HYDROLANT 267/002000-01-25 → 2000-01-28
    Seismic survey in progress until 27 jan by M/V cgg harmattan towing 6000 meter long cable in area bound by…
  41. HYDROLANT 266/002000-01-25 → 2000-01-28
    Seismic survey in progress until 27 jan by M/V geco marlin towing 8400 meter long cable in area bound by…
  42. HYDROLANT 265/002000-01-25 → 2000-01-28
    Seismic survey in progress until 27 jan by M/V geo arctic towing 16688 meter long cable in area bound by…
  43. HYDROLANT 264/002000-01-25 → 2000-01-28
    Seismic survey in progress until 27 jan by M/V northerm access towing one 8000 meter long cable and four 100…
  44. HYDROLANT 262/002000-01-25 → 2000-01-28
    Seismic survey in progress until 27 jan by M/V ramform viking towing 4500 meter long cable in area bound by…
  45. HYDROLANT 261/002000-01-25 → 2000-01-28
    Seismic survey in progress until 27 jan by M/V geco tau towing four 4600 meter long cables in area bound by…
  46. HYDROLANT 243/002000-01-23 → 2000-01-25
    Seismic survey in progress until 24 jan by M/V geo arctic towing 16688 meter long cable in area bound by…
  47. HYDROLANT 233/002000-01-22 → 2000-01-25
    Seismic survey in progress until 24 jan by M/V ramform victory towing 6500 meter long cable in area bound by…
  48. HYDROLANT 232/002000-01-22 → 2000-01-25
    Seismic survey in progress until 24 jan by M/V ramform vanguard and M/V falcon explorer towing 4500 meter…
  49. HYDROLANT 231/002000-01-22 → 2000-01-25
    Seismic survey in progress until 24 jan by M/V geco marlin towing 8400 meter long cable in area bound by…
  50. HYDROLANT 230/002000-01-22 → 2000-01-25
    Seismic survey in progress until 25 jan by M/V geco tau towing four 4600 meter long cables 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 101 · seahazards