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 1151/072007-07-03 → 2007-07-07
    Seismic survey in progress until 070259Z jul by M/V rig supporter with submersible in area between 21-16.00S…
  2. HYDROLANT 1146/072007-07-01 → 2007-07-07
    Seismic survey in progress until 070259Z jul by M/V cgg laurentian towing four 6000 meter long cables in…
  3. HYDROLANT 1143/072007-07-01 → 2007-07-03
    Seismic survey in progress until 070259Z jul by M/V toisa valiant towing 2000 meter long cable in area bound…
  4. HYDROLANT 1142/072007-07-01 → 2007-07-03
    Seismic survey in progress until 030259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  5. HYDROLANT 1128/072007-06-29 → 2007-06-30
    Seismic survey in progress until 300259Z jun by M/V hawk explorer towing 10000 meter long cable in area…
  6. HYDROLANT 1127/072007-06-29 → 2007-07-01
    Seismic survey in progress until 010259Z jul by M/V toisa valiant towing 2000 meter long cable in area bound…
  7. HYDROLANT 1115/072007-06-27 → 2007-07-05
    Seismic survey in progress until 050300Z jul by M/V cgg alize towing ten 4000 meter long cables in area…
  8. HYDROLANT 1113/072007-06-27 → 2007-07-01
    Seismic survey in progress until 010259Z jul by cgg laurentian towing four 6000 meter long cables in area…
  9. HYDROLANT 1108/072007-06-26 → 2007-06-29
    Seismic survey in progress until 290259Z jun by M/V hawk explorer towing 10000 meter long cable in area…
  10. HYDROLANT 1096/072007-06-24 → 2007-06-26
    Seismic survey in progress until 260259Z jun by M/V hawk explorer towing 10000 meter long cable in area…
  11. HYDROLANT 1075/072007-06-21 → 2007-06-24
    Seismic survey in progress until 240259Z jun by M/V hawk explorer towing 10000 meter long cable in area…
  12. HYDROLANT 1070/072007-06-20 → 2007-06-27
    Seismic survey in progress until 270300Z jun by M/V cgg alize towing ten 4000 meter long cables in area…
  13. HYDROLANT 1068/072007-06-20 → 2007-06-27
    Seismic survey in progress until 270259Z jun by cgg laurentian towing six 6000 meter long cables in area…
  14. HYDROLANT 1067/072007-06-20 → 2007-06-22
    Seismic survey in progress until 220259Z jun by M/V toisa valiant towing 2000 meter long cable in area bound…
  15. HYDROLANT 1046/072007-06-17 → 2007-06-20
    Seismic survey 170300Z to 200259Z jun by M/V hawk explorer towing 10000 meter long cable in area bound by…
  16. HYDROLANT 1035/072007-06-15 → 2007-06-20
    Seismic survey in progress until 200259Z jun by M/V cgg laurentian towing six 6000 meter long cables in area…
  17. HYDROLANT 1034/072007-06-15 → 2007-06-17
    Seismic survey 151600Z to 190259Z jun by M/V hawk explorer towing cable 10000 meters long in area bound by…
  18. HYDROLANT 1033/072007-06-15 → 2007-06-16
    Seismic survey in progress until 160259Z jun by M/V toisa valiant towing cable 2000 meters long in area…
  19. HYDROLANT 1025/072007-06-14 → 2007-06-20
    Seismic survey in progress until 200300Z jun by M/V cgg alize towing ten 4000 meter long cables in area…
  20. HYDROLANT 1018/072007-06-13 → 2007-06-20
    Seismic survey in progress until 200259Z jun by M/V ramform valiant towing ten 6600 meter long cables in…
  21. HYDROLANT 1017/072007-06-13 → 2007-06-15
    Seismic survey in progress until 200259Z jun by M/V cgg laurentian towing six 6000 meter long cables in area…
  22. HYDROLANT 1016/072007-06-13 → 2007-06-16
    Seismic survey in progress until 160259Z jun by M/V hawk explorer towing one 10000 meter long cable in area…
  23. HYDROLANT 991/072007-06-10 → 2007-06-13
    Seismic survey in progress until 110259Z jun by M/V hawk explorer towing 10000 meter long cable in area…
  24. HYDROLANT 990/072007-06-10 → 2007-06-15
    Seismic survey in progress until 150259Z jun by M/V toisa valiant towing 2000 meter long cable in area bound…
  25. HYDROLANT 977/072007-06-08 → 2007-06-14
    Seismic survey 080300Z to 140300Z jun by M/V cgg alize towing ten 4000 meter long cables in area bound by…
  26. HYDROLANT 976/072007-06-08 → 2007-06-10
    Seismic survey 080300Z to 100259Z jun by M/V discoverer towing 10500 meter long cable in area bound by…
  27. HYDROLANT 972/072007-06-07 → 2007-06-10
    Seismic survey 080300Z to 130259Z jun by M/V hawk explorer towing 10000 meter long cable in area bound by…
  28. HYDROLANT 964/072007-06-06 → 2007-06-09
    Seismic survey in progress until 090259Z jun by M/V hawk explorer towing 10000 meter long cable in area…
  29. HYDROLANT 961/072007-06-06 → 2007-06-07
    Seismic survey in progress until 130259Z jun by M/V rig supporter in area bound by 24-14.92S 044-24.75W,…
  30. HYDROLANT 960/072007-06-06 → 2007-06-13
    Seismic survey in progress until 130259Z jun by M/V ramform valiant towing ten 6600 meter long cables in…
  31. HYDROLANT 959/072007-06-06 → 2007-06-08
    Seismic survey in progress until 080259Z jun by M/V discoverer towing 10.5 meter long cable in area bound by…
  32. HYDROLANT 958/072007-06-06 → 2007-06-13
    Seismic survey 060300Z to 130259Z jun by M/V laurentian towing six 6000 meter long cables in area bound by…
  33. HYDROLANT 946/072007-06-04 → 2007-06-05
    Seismic survey in progress until 050800Z jun by M/V laurentian towing six 6000 meter long cables in area…
  34. HYDROLANT 945/072007-06-04 → 2007-06-06
    Seismic survey 060300Z to 120259Z jun by M/V hawk explorer towing 10000 meter long cable in area bound by…
  35. HYDROLANT 942/072007-06-03 → 2007-06-06
    Seismic survey in progress until 060259Z jun by M/V discoverer towing 10500 meter long cable in area bound…
  36. HYDROLANT 938/072007-06-02 → 2007-06-08
    Seismic survey in progress until 080300Z jun by M/V cgg alize towing ten 4000 meter long cables in area…
  37. HYDROLANT 929/072007-06-01 → 2007-06-03
    Seismic survey 030300Z to 070259Z jun by M/V hawk explorer towing 10000 meter long cable in area bound by…
  38. HYDROLANT 926/072007-06-01 → 2007-06-03
    Seismic survey in progress until 030259Z jun by M/V discoverer towing 10.5 meter long cable in area bound by…
  39. HYDROLANT 923/072007-05-31 → 2007-06-06
    Seismic survey 010300Z jun to 060259Z jun by M/V rig supporter in area bound by 24-14.92S 044-24.75W,…
  40. HYDROLANT 921/072007-05-31 → 2007-06-01
    Seismic survey in progress until 030259Z jun by M/V discoverer towing 10.5 meter long cable in area bound by…
  41. HYDROLANT 920/072007-05-31 → 2007-06-04
    Seismic survey in progress until 060259Z jun by M/V laurentian towing six 6000 meter long cables in area…
  42. HYDROLANT 913/072007-05-30 → 2007-06-06
    Seismic survey in progress until 060259Z jun by M/V ramform valiant towing ten 6600 meter long cables in…
  43. HYDROLANT 900/072007-05-29 → 2007-05-31
    Seismic survey in progress until 310259Z may by M/V discoverer towing 10.5 meter long cable in area bound by…
  44. HYDROLANT 896/072007-05-28 → 2007-05-31
    Seismic survey in progress until 310259Z may by M/V cgg laurentian towing six 6000 meter long cables in area…
  45. HYDROLANT 891/072007-05-27 → 2007-06-02
    Seismic survey in progress until 020300Z jun by M/V cgg alize towing ten 4000 meter long cables in area…
  46. HYDROLANT 890/072007-05-27 → 2007-05-31
    Seismic survey in progress until 310259Z may by M/V rig supporter in area bound by 24-14.92S 044-24.75W,…
  47. HYDROLANT 886/072007-05-26 → 2007-05-27
    Seismic survey in progress until 270259Z may by M/V discoverer towing 10.5 meter long cable in area bound by…
  48. HYDROLANT 881/072007-05-25 → 2007-05-26
    Seismic survey in progress until 260259Z may by M/V discoverer in area bound by 23-35S 041-30W, 23-45S…
  49. HYDROLANT 878/072007-05-24 → 2007-05-25
    Seismic survey 240300Z to 250259Z may by M/V discoverer towing 10500 meter long cable in area bound by…
  50. HYDROLANT 870/072007-05-23 → 2007-05-30
    Seismic survey in progress until 300259Z may by M/V ramform valiant towing ten 6600 meter long cables in…

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 51 · seahazards