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 1428/082008-09-05 → 2008-09-10
    Seismic survey in progress until 100259Z sep by M/V ramform valiant towing 12 6000 meter long cables in area…
  2. HYDROLANT 1414/082008-09-03 → 2008-09-07
    Seismic survey 040300Z to 070259Z sep by M/V rig supporter in area bound by 22-50.35S 040-07.65W, 22-41.38S…
  3. HYDROLANT 1393/082008-08-30 → 2008-09-07
    Pipe laying operations 010300Z T0 070300Z sep by barge acergy piper vicinity 23-48.6S 045-00.39W
  4. HYDROLANT 1351/082008-08-19 → 2008-09-06
    Pipe laying operations 211100Z aug to 222100Z sep by M/V polar bjorn along trackline joining 23-49.42S…
  5. HYDROLANT 1350/082008-08-19 → 2008-09-06
    Pipe laying operations 190300Z aug T0 150300Z oct by barge acergy piper along trackline between 23-49.9S…
  6. HYDROLANT 1337/082008-08-16 → 2008-08-23
    Seismic survey 180300Z to 230259Z aug by M/V rig supporter in area bound by 23-26S 041-17W, 23-26S 041-11W,…
  7. HYDROLANT 1277/082008-08-04 → 2008-08-05
    Seismic survey in progress by M/V rig supporter until 050259Z aug in area bound by 24-18.30S 044-27.40W,…
  8. HYDROLANT 1232/082008-07-26 → 2008-08-01
    Seismic survey 270300Z jul to 010259Z aug by M/V rig supporter with submersible in area bound by 24-18.3S…
  9. HYDROLANT 1221/082008-07-24 → 2008-07-27
    Seismic survey in progress until 270259Z jul by M/V rig supporter with submersible in area bound by 24-18.3S…
  10. HYDROLANT 1182/082008-07-16 → 2008-07-22
    Seismic survey in progress until 220259Z jul by M/V rig supporter with submersible in area bound by 24-18.3S…
  11. HYDROLANT 1176/082008-07-14 → 2008-10-13
    Seismic survey in progress until 15 nov M/V western pride towing eight two mile long cables in area bound by…
  12. HYDROLANT 1147/082008-07-10 → 2008-07-16
    Seismic survey in progress until 160259Z jul by M/V rig supporter with submersible in area bound by 24-18.3S…
  13. HYDROLANT 1111/082008-07-05 → 2008-07-10
    Seismic survey in progress until 100259Z jul by M/V rig supporter with submersible in area bound by 24-18.3S…
  14. HYDROLANT 1090/082008-07-01 → 2008-09-18
    Seismic survey in progress until further notice by M/V geco emerald towing six 3.5 mile long cables in area…
  15. HYDROLANT 1088/082008-07-01 → 2008-07-05
    Seismic survey in progress until 050259Z jul by M/V rig supporter with submersible in area bound by 24-18.3S…
  16. HYDROLANT 1043/082008-06-26 → 2008-07-01
    Seismic survey in progress until 010259Z jul by M/V rig supporter with submersible in area bound by 24-18.3S…
  17. HYDROLANT 1013/082008-06-21 → 2008-06-25
    Seismic survey in progress until 250259Z jun by M/V rig supporter with submersible in area bound by 24-18.3S…
  18. HYDROLANT 997/082008-06-17 → 2008-06-21
    Seismic survey in progress until 210259Z jun by M/V rig supporter with submersible in area bound by…
  19. HYDROLANT 984/082008-06-14 → 2008-06-16
    Seismic survey in progress until 160259Z jun by M/V discoverer in area bound by 24-00S 038-38W, 24-00S…
  20. HYDROLANT 978/082008-06-13 → 2008-06-17
    Seismic survey in progress until 170259Z jun by M/V rig supporter with submersible in area bound by…
  21. HYDROLANT 970/082008-06-11 → 2008-06-14
    Seismic survey in progress until 140259Z jun by M/V discoverer in area bound by 23-18S 041-05W, 23-22S…
  22. HYDROLANT 963/082008-06-10 → 2008-06-13
    Seismic survey 110300Z to 130259Z jun by M/V rig supporter with submersible in area bound by 24-20.2S…
  23. HYDROLANT 962/082008-06-10 → 2008-06-11
    Seismic survey 100300Z to 110259Z jun by M/V discoverer in area bound by 23-39S 041-25W, 23-41S 041-28W,…
  24. HYDROLANT 926/082008-06-03 → 2008-06-08
    Seismic survey 060359Z to 080259Z jun by M/V discoverer in area bound by 26-40S 043-09W, 26-43S 043-11W,…
  25. HYDROLANT 925/082008-06-03 → 2008-06-06
    Seismic survey 040300Z to 060259Z jun by M/V discoverer in area bound by 27-57S 041-15W, 28-01S 041-21W,…
  26. HYDROLANT 914/082008-05-31 → 2008-06-11
    Seismic survey in progress until further notice by M/V akademik shatskiy towing 11000 meter long cable along…
  27. HYDROLANT 904/082008-05-30 → 2008-05-31
    Seismic survey in progress until further notice by M/V akademik shatskiy towing 11000 meter long cable along…
  28. HYDROLANT 895/082008-05-28 → 2008-05-30
    Seismic survey in progress until 300259Z may by M/V discoverer in area bound by 27-26S 043-58W, 27-30S…
  29. HYDROLANT 871/082008-05-24 → 2008-05-30
    Seismic survey in progress until 300259Z may by M/V rig supporter with submersible in area bound by 24-20.2S…
  30. HYDROLANT 864/082008-05-22 → 2008-05-28
    Seismic survey in progress until 280259Z may by M/V discoverer in area bound by 21-40S 039-15W, 21-40S…
  31. HYDROLANT 858/082008-05-20 → 2008-05-22
    Seismic survey in progress until 220259Z may by M/V discoverer in area bound by 23-31.0S 037-45.0W, 23-28.0S…
  32. HYDROLANT 857/082008-05-20 → 2008-05-24
    Seismic survey in progress until 240259Z may by M/V rig supporter with submersible in area bound by 24-20.2S…
  33. HYDROLANT 856/082008-05-20 → 2008-05-30
    Seismic survey in progress until further notice by M/V akademik shatskiy towing 11000 meter long cable along…
  34. HYDROLANT 839/082008-05-17 → 2008-05-20
    Seismic survey in progress until further notice by M/V akademik shatskiy towing 11000 meter long cable along…
  35. HYDROLANT 833/082008-05-16 → 2008-05-20
    Seismic survey in progress until 200259Z may by M/V rig supporter with submersible in area bound by 24-20.2S…
  36. HYDROLANT 832/082008-05-16 → 2008-05-17
    Seismic survey in progress until further notice by M/V akademik shatskiy towing 11000 meter long cable along…
  37. HYDROLANT 827/082008-05-15 → 2008-05-16
    Seismic survey in progress until further notice by M/V akademik shatskiy towing 11000 meter long cable along…
  38. HYDROLANT 818/082008-05-14 → 2008-05-14
    Seismic survey in progress until further notice by M/V akademik shatskiy towing 11000 meter long cable along…
  39. HYDROLANT 810/082008-05-13 → 2008-05-14
    Seismic survey in progress until further notice by M/V akademik shatskiy towing 11000 meter long cable along…
  40. HYDROLANT 809/082008-05-12 → 2008-05-16
    Seismic survey in progress until 160259Z may by M/V rig supporter with submersible in area bound by 24-20.2S…
  41. HYDROLANT 805/082008-05-12 → 2008-05-13
    Seismic survey 111200Z may until further notice by M/V akademik shatskiy towing 11000 meter long cable along…
  42. HYDROLANT 798/082008-05-11 → 2008-05-12
    Seismic survey in progress until further notice by M/V akademik shatskiy towing 11000 meter long cable along…
  43. HYDROLANT 783/082008-05-08 → 2008-05-12
    Seismic survey 090300Z T0 120259Z may by M/V discoverer in area bound by 23-39S 042-18W, 25-56S 042-18W,…
  44. HYDROLANT 776/082008-05-07 → 2008-05-11
    Seismic survey in progress until 110259Z may by M/V rig supporter with submersible in area bound by 24-20.2S…
  45. HYDROLANT 771/082008-05-06 → 2008-05-09
    Seismic survey in progress until 100259Z may by M/V discoverer in area bound by 22-59.40S 039-08.68W,…
  46. HYDROLANT 750/082008-05-03 → 2008-05-06
    Seismic survey in progress until 060259Z may by M/V discoverer in area bound by 20-26S 039-06W, 20-26S…
  47. HYDROLANT 745/082008-05-02 → 2008-05-06
    Seismic survey in progress until 060259Z may by M/V rig supporter with submersible in area bound by 24-20.2S…
  48. HYDROLANT 742/082008-05-02 → 2008-05-03
    Seismic survey in progress until 030259Z may by M/V discoverer in area bound by 21-53S 039-36W, 22-36S…
  49. HYDROLANT 733/082008-04-30 → 2008-05-01
    Seismic survey in progress until 010259Z may by M/V discoverer in area bound by 20-58S 040-03W, 21-05S…
  50. HYDROLANT 726/082008-04-29 → 2008-06-28
    Seismic survey in progress until further notice by M/V geco emerald towing six five mile 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 46 · seahazards