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 2172/002000-06-17 → 2000-06-20
    Seismic survey in progress until 19 jun by M/V polar search towing four 6482 meter long cables in area bound…
  2. HYDROLANT 2159/002000-06-16 → 2000-06-19
    Seismic survey in progress until 18 jun by M/V ramform victory and M/V sanco capitain towing eight 4800…
  3. HYDROLANT 2153/002000-06-15 → 2000-06-22
    Cable laying operations in progress until 21 jun by cableship coastal connector along trackline between…
  4. HYDROLANT 2142/002000-06-15 → 2000-06-17
    Seismic survey in progress until 16 jun by M/V polar search towing four 6482 meter long cables in area bound…
  5. HYDROLANT 2139/002000-06-15 → 2000-06-17
    Seismic survey in progress until 20 jun by M/V western regent towing eight 4000 meter long cables in area…
  6. HYDROLANT 2131/002000-06-14 → 2000-06-16
    Seismic survey in progress until 15 jun by M/V ramform victory and M/V sanco capitain towing eight 4800…
  7. HYDROLANT 2119/002000-06-13 → 2000-06-20
    Seismic survey in progress until 19 jun by M/V western atlas towing 400 meter long cable in area bound by…
  8. HYDROLANT 2105/002000-06-12 → 2000-06-15
    Seismic survey in progress until 14 jun by M/V polar search towing four 6482 meter long cables in area bound…
  9. HYDROLANT 2104/002000-06-12 → 2000-06-15
    Seismic survey in progress until 14 jun by M/V northerm access towing 8704 meter long cable in area bound by…
  10. HYDROLANT 2096/002000-06-11 → 2000-06-14
    Seismic survey in progress until 13 jun by M/V ramform vanguard and M/V kondor towing ten 4800 meter long…
  11. HYDROLANT 2094/002000-06-11 → 2000-06-14
    Seismic survey in progress until 13 jun by M/V ramform victory towing 4800 meter long cable in area bound by…
  12. HYDROLANT 2091/002000-06-10 → 2000-06-15
    Seismic survey in progress until 14 jun by M/V new venture towing 8500 meter long cable in area bound by…
  13. HYDROLANT 2079/002000-06-09 → 2000-06-12
    Seismic survey in progress until 11 jun by M/V new venture towing 8500 meter long cable in area bound by…
  14. HYDROLANT 2077/002000-06-09 → 2000-06-12
    Seismic survey in progress until 11 jun by M/V polar search towing four 6482 meter long cables in area bound…
  15. HYDROLANT 2076/002000-06-09 → 2000-06-12
    Seismic survey in progress until 11 jun by M/V northerm access towing 8704 meter long cable in area bound by…
  16. HYDROLANT 2061/002000-06-07 → 2000-06-13
    Seismic survey in progress until 12 jun by M/V western atlas and M/V western patriot towing seven 3000 meter…
  17. HYDROLANT 2051/002000-06-07 → 2000-06-09
    Seismic survey in progress until 08 jun by M/V northerm access towing 8704 meter long cable in area bound by…
  18. HYDROLANT 2037/002000-06-06 → 2000-06-09
    Seismic survey in progress until 08 jun by M/V new venture towing 8500 meter long cable in area bound by…
  19. HYDROLANT 2036/002000-06-06 → 2000-06-09
    Seismic survey in progress until 08 jun by M/V polar search towing four 6482 meter long cables in area bound…
  20. HYDROLANT 2034/002000-06-06 → 2000-06-08
    Seismic survey in progress until 07 jun by M/V ramform victory and M/V sanco capitain towing eight 4800…
  21. HYDROLANT 2026/002000-06-05 → 2000-06-06
    Seismic survey in progress until 05 jun by M/V ramform victory and M/V sanco capitain towing eight 4800…
  22. HYDROLANT 2022/002000-06-05 → 2000-06-06
    Seismic survey in progress until 05 jun by M/V polar search towing four 6482 meter long cables in area bound…
  23. HYDROLANT 2015/002000-06-04 → 2000-06-07
    Seismic survey in progress until 06 jun by M/V northerm access towing 8704 meter long cable in area bound by…
  24. HYDROLANT 2011/002000-06-04 → 2000-06-07
    Seismic survey in progress until 07 jun by M/V western atlas and M/V western patriot towing seven 3000 meter…
  25. HYDROLANT 2006/002000-06-03 → 2000-06-06
    Seismic survey in progress until 06 jun by M/V new venture towing 8500 meter long cable in area bound by…
  26. HYDROLANT 1988/002000-06-02 → 2000-06-05
    Seismic survey in progress until 04 jun by M/V ramform victory and M/V sanco capitain towing eight 4800…
  27. HYDROLANT 1986/002000-06-02 → 2000-06-05
    Seismic survey in progress until 04 jun by M/V polar search towing four 6482 meter long cables in area bound…
  28. HYDROLANT 1983/002000-06-02 → 2000-07-14
    Seismic survey in progress until 20 jul by M/V cgg alize towing ten three mile long cables in area bound by…
  29. HYDROLANT 1974/002000-06-01 → 2000-06-02
    Seismic survey in progress until 02 jun by M/V new venture towing 8500 meter long cable in area bound by…
  30. HYDROLANT 1964/002000-05-31 → 2000-06-02
    Seismic survey in progress until 01 jun by M/V ramform victory and M/V sanco capitain towing eight 4800…
  31. HYDROLANT 1945/002000-05-30 → 2000-06-01
    Seismic survey in progress until 31 may by M/V new venture towing 8500 meter long cable in area bound by…
  32. HYDROLANT 1942/002000-05-30 → 2000-06-02
    Seismic survey in progress until 01 jun by M/V polar search towing four 6482 meter long cables in area bound…
  33. HYDROLANT 1937/002000-05-29 → 2000-06-01
    Seismic survey in progress until 31 may by M/V northerm access towing 8704 meter long cable in area bound by…
  34. HYDROLANT 1934/002000-05-28 → 2000-05-31
    Seismic survey in progress until 30 may by M/V ramform victory and M/V sanco capitain towing eight 4800…
  35. HYDROLANT 1933/002000-05-28 → 2000-05-31
    Seismic survey in progress until 30 may by M/V cgg harmattan towing six 6482 meter long cables in area bound…
  36. HYDROLANT 1932/002000-05-28 → 2000-05-30
    Seismic survey in progress until 29 may by M/V polar search towing four 6482 meter long cables in area bound…
  37. HYDROLANT 1931/002000-05-28 → 2000-06-03
    Seismic survey in progress until 02 jun by M/V western atlas and M/V western patriot towing seven 3000 meter…
  38. HYDROLANT 1928/002000-05-28 → 2000-05-30
    Seismic survey in progress until 29 may by M/V new venture towing 8500 meter long cable in area bound by…
  39. HYDROLANT 1907/002000-05-26 → 2000-05-28
    Seismic survey in progress until 27 may by M/V polar search towing four 6482 meter long cables in area bound…
  40. HYDROLANT 1905/002000-05-26 → 2000-05-29
    Seismic survey in progress until 28 may by M/V northerm access towing 8704 meter long cable in area bound by…
  41. HYDROLANT 1891/002000-05-25 → 2000-05-28
    Seismic survey in progress until 27 may by M/V ramform victory and M/V sanco capitain towing eight 4800…
  42. HYDROLANT 1869/002000-05-23 → 2000-05-26
    Seismic survey in progress until 25 may by M/V northerm access towing 8704 meter long cable in area bound by…
  43. HYDROLANT 1866/002000-05-23 → 2000-05-26
    Seismic survey in progress until 25 may by M/V new venture towing 8500 meter long cable in area bound by…
  44. HYDROLANT 1865/002000-05-23 → 2000-05-28
    Seismic survey in progress until 28 may by M/V western atlas and M/V western patriot towing seven 3000 meter…
  45. HYDROLANT 1845/002000-05-22 → 2000-05-26
    Seismic survey in progress until 25 may by M/V polar search towing four 6482 meter long cables in area bound…
  46. HYDROLANT 1844/002000-05-22 → 2000-05-25
    Seismic survey in progress until 24 may by M/V ramform victory and M/V sanco capitain towing eight 4800…
  47. HYDROLANT 1837/002000-05-21 → 2000-05-24
    Seismic survey in progress until 23 may by M/V geco diamond towing eight 5556 meter long cables in area…
  48. HYDROLANT 1835/002000-05-21 → 2000-05-23
    Seismic survey in progress until 23 may by M/V new venture towing 8500 meter long cable in area bound by…
  49. HYDROLANT 1822/002000-05-20 → 2000-05-21
    Seismic survey in progress until 23 may by M/V new venture towing 8500 meter long cable in area bound by…
  50. HYDROLANT 1820/002000-05-20 → 2000-05-23
    Seismic survey in progress until 22 may by M/V northerm access towing 8704 meter long cable 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 94 · seahazards