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 · 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 735/032003-04-09 → 2003-04-10
    Seismic survey in progress until 120400Z apr by M/V bulldog towing five 6000 meter long cables in area bound…
  2. HYDROLANT 729/032003-04-08 → 2003-04-12
    Seismic survey in progress until 120259Z apr by M/V ramform viking towing ten 4600 meter long cables in area…
  3. HYDROLANT 728/032003-04-08 → 2003-04-12
    Seismic survey in progress until 120259Z apr by M/V cgg fohn towing six 7408 meter long cables in area bound…
  4. HYDROLANT 719/032003-04-07 → 2003-04-09
    Seismic survey in progress until 100200Z apr by M/V cgg harmattan towing six 6000 meter long cables in area…
  5. HYDROLANT 714/032003-04-06 → 2003-04-09
    Seismic survey in progress until 090400Z apr by M/V bulldog towing five 6000 meter long cables in area bound…
  6. HYDROLANT 700/032003-04-04 → 2003-04-08
    Seismic survey in progress until 080159Z apr by M/V cgg fohn towing six 7408 meter long cables in area bound…
  7. HYDROLANT 698/032003-04-04 → 2003-04-08
    Seismic survey in progress until 080259Z apr by M/V ramform viking towing ten 4600 meter long cables in area…
  8. HYDROLANT 697/032003-04-04 → 2003-04-06
    Seismic survey in progress until 060400Z apr by M/V bulldog towing five 6000 meter long cables in area bound…
  9. HYDROLANT 693/032003-04-03 → 2003-04-07
    Seismic survey in progress until 070200Z apr by M/V cgg harmattan towing six 6000 meter long cables in area…
  10. HYDROLANT 690/032003-04-03 → 2003-04-04
    Seismic survey in progress until 050400Z apr by M/V bulldog towing five 6000 meter long cables in area bound…
  11. HYDROLANT 678/032003-04-01 → 2003-04-04
    Seismic survey in progress until 040159Z apr by M/V cgg fohn towing six 7408 meter long cables in area bound…
  12. HYDROLANT 677/032003-04-01 → 2003-04-04
    Seismic survey in progress until 040159Z apr by M/V ramform viking towing ten 4600 meter long cables in area…
  13. HYDROLANT 676/032003-04-01 → 2003-04-03
    Seismic survey 010400Z to 030400Z apr by M/V bulldog towing five 6000 meter long cables in area bound by…
  14. HYDROLANT 669/032003-03-31 → 2003-04-03
    Seismic survey in progress until 030200Z apr by M/V cgg harmattan towing six 6000 meter long cables in area…
  15. HYDROLANT 665/032003-03-30 → 2003-04-01
    Seismic survey in progress until 010159Z apr by M/V cgg fohn towing six 7408 meter long cables in area bound…
  16. HYDROLANT 657/032003-03-29 → 2003-04-01
    Seismic survey 290400Z mar to 010400Z apr by M/V bulldog towing five 6000 meter long cables in area bound by…
  17. HYDROLANT 647/032003-03-28 → 2003-03-31
    Seismic survey in progress until 302300Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  18. HYDROLANT 618/032003-03-24 → 2003-03-29
    Seismic survey 260400Z to 290400Z mar by M/V bulldog towing five 6000 meter long cables in area bound by…
  19. HYDROLANT 613/032003-03-23 → 2003-03-26
    Seismic survey in progress until 260200Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  20. HYDROLANT 609/032003-03-22 → 2003-03-23
    Seismic survey in progress until 250200Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  21. HYDROLANT 574/032003-03-16 → 2003-03-21
    Seismic survey in progress until 210159Z mar by M/V cgg alize towing eight 7400 meter long cables in area…
  22. HYDROLANT 568/032003-03-15 → 2003-03-18
    Seismic survey in progress until 182300Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  23. HYDROLANT 556/032003-03-13 → 2003-03-15
    Seismic survey in progress until 150200Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  24. HYDROLANT 555/032003-03-13 → 2003-03-16
    Seismic survey in progress until 160159Z mar by M/V cgg alize towing eight 7400 meter long cables in area…
  25. HYDROLANT 546/032003-03-12 → 2003-03-13
    Seismic survey in progress until 130200Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  26. HYDROLANT 534/032003-03-10 → 2003-03-12
    Seismic survey in progress until 122300Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  27. HYDROLANT 521/032003-03-08 → 2003-03-12
    Seismic survey in progress until 120159Z mar by M/V cgg alize towing eight 7400 meter long cables in area…
  28. HYDROLANT 513/032003-03-07 → 2003-03-09
    Seismic survey in progress until 090300Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  29. HYDROLANT 511/032003-03-07 → 2003-03-08
    Seismic survey in progress until 080159Z mar by M/V cgg alize towing eight 7400 meter long cables in area…
  30. HYDROLANT 498/032003-03-05 → 2003-03-07
    Seismic survey in progress until 070300Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  31. HYDROLANT 468/032003-03-01 → 2003-03-04
    Seismic survey in progress until 040200Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  32. HYDROLANT 460/032003-02-28 → 2003-03-06
    Seismic survey in progress until 060159Z mar by M/V cgg alize towing eight 7400 meter long cables in area…
  33. HYDROLANT 459/032003-02-28 → 2003-03-01
    Seismic survey in progress until 28 feb by M/V ramform explorer towing eight 6500 meter long cables vicinity…
  34. HYDROLANT 434/032003-02-25 → 2003-03-01
    Seismic survey 252300Z to 282300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  35. HYDROLANT 431/032003-02-25 → 2003-02-28
    Seismic survey in progress until 280200Z feb by M/V cgg alize towing eight 7400 meter long cables in area…
  36. HYDROLANT 401/032003-02-21 → 2003-02-25
    Seismic survey in progress until 250200Z feb by M/V cgg alize towing eight 7400 meter long cables in area…
  37. HYDROLANT 399/032003-02-21 → 2003-02-25
    Seismic survey in progress until 26 feb by M/V bulldog towing 15 meter long cable in area bound by 11-02.0S…
  38. HYDROLANT 398/032003-02-21 → 2003-03-11
    Underwater cable operations in progress until 10 mar by cableship tyco resolute along trackline between…
  39. HYDROLANT 397/032003-02-21 → 2003-02-25
    Seismic survey in progress until 242300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area…
  40. HYDROLANT 377/032003-02-18 → 2003-02-21
    Seismic survey in progress until 202300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area…
  41. HYDROLANT 376/032003-02-18 → 2003-02-21
    Seismic survey in progress until 20 feb by M/V bulldog towing 15 meter long cable in area bound by 11-03.7S…
  42. HYDROLANT 364/032003-02-16 → 2003-02-18
    Seismic survey in progress until 17 feb by M/V bulldog towing 15 meter long cable in area bound by 11-05.9S…
  43. HYDROLANT 359/032003-02-15 → 2003-02-19
    Seismic survey in progress until 182300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area…
  44. HYDROLANT 345/032003-02-13 → 2003-02-15
    Seismic survey in progress until 152300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area…
  45. HYDROLANT 337/032003-02-12 → 2003-02-15
    Seismic survey in progress until 14 feb by M/V bulldog towing 15 meter long cable in area bound by 11-06.4S…
  46. HYDROLANT 311/032003-02-09 → 2003-02-12
    Seismic survey in progress until 11 feb by M/V bulldog towing 15 meter long cable in area bound by 11-06.87S…
  47. HYDROLANT 292/032003-02-07 → 2003-02-13
    Seismic survey 070900Z to 122300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  48. HYDROLANT 280/032003-02-06 → 2003-02-09
    Seismic survey in progress until 08 feb by M/V bulldog towing 15 meter long cable in area bound by 11-08.0S…
  49. HYDROLANT 268/032003-02-05 → 2003-02-08
    Seismic survey in progress until 080159Z feb by M/V cgg alize towing eight 7410 meter long cables in area…
  50. HYDROLANT 252/032003-02-03 → 2003-02-06
    Seismic survey in progress until 05 feb by M/V bulldog towing 15 meter long cable in area bound by 11-08.8S…

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 68 · seahazards