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 · 51 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 · 18 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 716/042004-04-28 → 2004-05-02
    Seismic survey in progress until 020259Z may by M/V cgg harmattan towing six 6000 meter long cables in area…
  2. HYDROLANT 715/042004-04-28 → 2004-05-02
    Seismic survey 29 apr thru 01 may by M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  3. HYDROLANT 714/042004-04-28 → 2004-05-01
    Seismic survey 29 apr thru 01 may by M/V ramform viking towing eight 6000 meter long cables in area bound by…
  4. HYDROLANT 703/042004-04-25 → 2004-04-29
    Seismic survey in progress until 290259Z apr by M/V cgg harmattan towing six 6000 meter long cables in area…
  5. HYDROLANT 691/042004-04-24 → 2004-04-26
    Seismic survey in progress until 25 apr by M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  6. HYDROLANT 680/042004-04-23 → 2004-04-24
    Seismic survey in progress until 23 apr by M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  7. HYDROLANT 675/042004-04-22 → 2004-04-25
    Seismic survey in progress until 250259Z apr by M/V cgg harmattan towing six 6000 meter long cables in area…
  8. HYDROLANT 665/042004-04-20 → 2004-04-23
    Seismic survey in progress until 22 apr by M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  9. HYDROLANT 647/042004-04-19 → 2004-04-22
    Seismic survey in progress until 220259Z apr by M/V cgg harmattan towing six 6000 meter long cables in area…
  10. HYDROLANT 637/042004-04-17 → 2004-04-20
    Seismic survey by M/V tropicaliente towing two 20 meter long cables and M/V bulldog towing two 15 meter long…
  11. HYDROLANT 626/042004-04-15 → 2004-04-17
    Seismic survey in progress until 170259Z apr by M/V cgg harmattan towing six 6000 meter long cables in area…
  12. HYDROLANT 622/042004-04-14 → 2004-04-17
    Seismic survey in progress until 16 apr by M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  13. HYDROLANT 602/042004-04-11 → 2004-04-14
    Seismic survey in progress until 13 apr by M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  14. HYDROLANT 586/042004-04-08 → 2004-04-11
    Seismic survey in progress until 10 apr M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  15. HYDROLANT 563/042004-04-05 → 2004-04-08
    Seismic survey in progress until 07 apr M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  16. HYDROLANT 546/042004-04-02 → 2004-04-05
    Seismic survey in progress until 05 apr M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  17. HYDROLANT 542/042004-04-02 → 2004-04-05
    Seismic survey in progress until 050259Z apr by M/V cgg harmattan towing six 6000 meter long cables in area…
  18. HYDROLANT 529/042004-03-31 → 2004-04-02
    Seismic survey in progress until 030259Z apr by M/V cgg harmattan towing six 6000 meter long cables in area…
  19. HYDROLANT 521/042004-03-30 → 2004-04-02
    Seismic survey by M/V tropicaliente towing two 20 meter long cables and M/V bulldog towing two 15 meter long…
  20. HYDROLANT 509/042004-03-28 → 2004-03-31
    Seismic survey in progress until 310259Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  21. HYDROLANT 499/042004-03-27 → 2004-03-30
    Seismic survey by M/V tropicaliente towing two 20 meter long cables and M/V bulldog towing two 15 meter long…
  22. HYDROLANT 484/042004-03-25 → 2004-03-28
    Seismic survey in progress until 280259Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  23. HYDROLANT 470/042004-03-23 → 2004-03-27
    Seismic survey by M/V tropicaliente towing two 20 meter long cables and M/V bulldog towing two 15 meter long…
  24. HYDROLANT 463/042004-03-22 → 2004-03-23
    Seismic survey 23 mar by M/V tropicaliente towing two 20 meter long cables and M/V bulldog towing two 15…
  25. HYDROLANT 455/042004-03-20 → 2004-03-21
    Seismic survey in progress until 20 mar by M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  26. HYDROLANT 454/042004-03-20 → 2004-03-25
    Seismic survey in progress until 250259Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  27. HYDROLANT 447/042004-03-19 → 2004-03-20
    Seismic survey in progress until 19 mar by M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  28. HYDROLANT 422/042004-03-15 → 2004-03-20
    Seismic survey in progress until 200259Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  29. HYDROLANT 419/042004-03-15 → 2004-03-18
    Seismic survey in progress until 17 mar by M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  30. HYDROLANT 395/042004-03-10 → 2004-03-15
    Seismic survey in progress until 150259Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  31. HYDROLANT 389/042004-03-09 → 2004-03-15
    Seismic survey in progress until 14 mar by M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  32. HYDROLANT 371/042004-03-04 → 2004-03-10
    Seismic survey in progress until 100259Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  33. HYDROLANT 369/042004-03-04 → 2004-03-09
    Seismic survey in progress until 08 mar by M/V tropicaliente towing two 20 meter long cables and M/V bulldog…
  34. HYDROLANT 363/042004-03-03 → 2004-03-04
    Seismic survey in progress until 05 mar by M/V bulldog towing two 15 meter long cables in area bound by…
  35. HYDROLANT 362/042004-03-03 → 2004-03-04
    Seismic survey in progress until 05 mar by M/V tropicaliente towing two 20 meter long cables in area bound…
  36. HYDROLANT 351/042004-03-01 → 2004-03-03
    Seismic survey in progress until 02 mar by M/V bulldog towing two 15 meter long cables in area bound by…
  37. HYDROLANT 349/042004-03-01 → 2004-03-03
    Seismic survey in progress until 02 mar by M/V tropicaliente towing two 20 meter long cables in area bound…
  38. HYDROLANT 341/042004-02-28 → 2004-03-04
    Seismic survey in progress until 050259Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  39. HYDROLANT 331/042004-02-26 → 2004-02-29
    Seismic survey in progress until 28 feb by M/V bulldog towing two 15 meter long cables in area bound by…
  40. HYDROLANT 330/042004-02-26 → 2004-02-29
    Seismic survey in progress until 28 feb by M/V tropicaliente towing two 20 meter long cables in area bound…
  41. HYDROLANT 312/042004-02-23 → 2004-02-26
    Seismic survey in progress until 25 feb by M/V bulldog towing two 15 meter long cables in area bound by…
  42. HYDROLANT 311/042004-02-23 → 2004-02-26
    Seismic survey in progress until 25 feb by M/V tropicaliente towing two 20 meter long cables in area bound…
  43. HYDROLANT 307/042004-02-22 → 2004-02-28
    Seismic survey in progress until 280259Z feb by M/V cgg harmattan towing six 6000 meter long cables in area…
  44. HYDROLANT 299/042004-02-20 → 2004-02-23
    Seismic survey in progress until 22 feb by M/V bulldog towing two 15 meter long cables in area bound by…
  45. HYDROLANT 297/042004-02-20 → 2004-02-23
    Seismic survey in progress until 22 feb by M/V tropicaliente towing two 20 meter long cables in area bound…
  46. HYDROLANT 292/042004-02-19 → 2004-02-27
    Seismic survey in progress until 040300Z mar by M/V ramform viking towing eight 6000 meter long cables in…
  47. HYDROLANT 291/042004-02-19 → 2004-02-22
    Seismic survey in progress until 220259Z feb by M/V cgg harmattan towing six 6000 meter long cables in area…
  48. HYDROLANT 287/042004-02-18 → 2004-02-20
    Seismic survey in progress until 19 feb by M/V bulldog towing two 15 meter long cables in area bound by…
  49. HYDROLANT 286/042004-02-18 → 2004-02-20
    Seismic survey in progress until 19 feb by M/V tropicaliente towing two 20 meter long cables in area bound…
  50. HYDROLANT 273/042004-02-15 → 2004-02-19
    Seismic survey in progress until 190259Z feb by M/V cgg harmattan towing six 6000 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 62 · seahazards