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 2419/002000-07-08 → 2000-07-11
    Seismic survey in progress until 10 jul by M/V ramform explorer towing eight 6500 meter long cables in area…
  2. HYDROLANT 2418/002000-07-08 → 2000-07-11
    Seismic survey in progress until 11 jul by M/V teleri towing 200 meter long cable in area bound by 03-45.0S…
  3. HYDROLANT 2412/002000-07-07 → 2000-07-09
    Seismic survey in progress until 11 jul by M/V polar search towing four 6482 meter long cables in area bound…
  4. HYDROLANT 2411/002000-07-07 → 2000-07-10
    Seismic survey in progress until 09 jul by M/V northerm access towing 8704 meter long cable in area bound by…
  5. HYDROLANT 2406/002000-07-07 → 2000-07-11
    Seismic survey in progress until 10 jul by M/V western regent and M/V western kenda towing eight 4000 meter…
  6. HYDROLANT 2388/002000-07-06 → 2000-07-07
    Seismic survey in progress until 08 jul by M/V western regent and M/V western kenda towing eight 4000 meter…
  7. HYDROLANT 2387/002000-07-06 → 2000-07-09
    Seismic survey in progress until 09 jul by M/V western atlas and M/V western patriot towing 400 meter long…
  8. HYDROLANT 2377/002000-07-05 → 2000-07-07
    Seismic survey in progress until 06 jul by M/V northerm access towing 8704 meter long cable in area bound by…
  9. HYDROLANT 2367/002000-07-04 → 2000-07-06
    Seismic survey in progress until 06 jul by M/V western atlas and M/V western patriot towing 400 meter long…
  10. HYDROLANT 2366/002000-07-04 → 2000-07-07
    Seismic survey in progress until 06 jul by M/V polar search towing four 6482 meter long cables in area bound…
  11. HYDROLANT 2365/002000-07-04 → 2000-07-08
    Seismic survey in progress until 07 jul by M/V ramform explorer towing eight 7408 meter long cables in area…
  12. HYDROLANT 2361/002000-07-04 → 2000-07-07
    Seismic survey in progress until 06 jul by M/V ramform victory and M/V sanco capitain towing eight 4800…
  13. HYDROLANT 2345/002000-07-02 → 2000-07-07
    Seismic survey in progress until 08 jul by M/V new venture towing 8500 meter long cable in area bound by…
  14. HYDROLANT 2335/002000-07-01 → 2000-07-04
    Seismic survey in progress until 03 jul by M/V ramform explorer towing eight 7408 meter long cables in area…
  15. HYDROLANT 2332/002000-07-01 → 2000-07-04
    Seismic survey in progress until 03 jul by M/V ramform victory and M/V sanco capitain towing eight 4800…
  16. HYDROLANT 2331/002000-07-01 → 2000-07-04
    Seismic survey in progress until 03 jul by M/V polar search towing four 6482 meter long cables in area bound…
  17. HYDROLANT 2327/002000-06-30 → 2000-07-04
    Seismic survey in progress until 05 jul by M/V western atlas and M/V western patriot towing seven 3000 meter…
  18. HYDROLANT 2315/002000-06-30 → 2000-07-01
    Seismic survey in progress until 03 jul by M/V ramform explorer towing eight 7408 meter long cables in area…
  19. HYDROLANT 2314/002000-06-30 → 2000-07-06
    Seismic survey in progress until 05 jul by M/V western regent and M/V western kenda towing eight 4000 meter…
  20. HYDROLANT 2308/002000-06-29 → 2000-07-14
    Cable laying operations in progress until 13 jul by cableship tyco provider along trackline between 36-31.5S…
  21. HYDROLANT 2303/002000-06-29 → 2000-07-01
    Seismic survey in progress until 30 jun by M/V ramform vanguard and M/V kondor explorer towing ten 4800…
  22. HYDROLANT 2296/002000-06-28 → 2000-06-29
    Seismic survey in progress until 30 jun by M/V ramform vanguard and M/V kondor explorer towing ten 4800…
  23. HYDROLANT 2295/002000-06-28 → 2000-07-01
    Seismic survey in progress until 30 jun by M/V polar search towing four 6482 meter long cables in area bound…
  24. HYDROLANT 2292/002000-06-28 → 2000-07-03
    Seismic survey in progress until 02 jul by M/V new venture towing 8500 meter long cable in area bound by…
  25. HYDROLANT 2283/002000-06-27 → 2000-06-28
    Seismic survey in progress until 30 jun by M/V polar search towing four 6482 meter long cables in area bound…
  26. HYDROLANT 2282/002000-06-27 → 2000-06-28
    Seismic survey in progress until 272359Z jun by M/V northern access towing 8704 meter long cable in area…
  27. HYDROLANT 2281/002000-06-27 → 2000-07-01
    Seismic survey in progress until 30 jun by M/V ramform victory and M/V sanco capitain towing eight 4800…
  28. HYDROLANT 2279/002000-06-27 → 2000-06-29
    Seismic survey in progress until 28 jun by M/V new venture towing 8500 meter long cable in area bound by…
  29. HYDROLANT 2267/002000-06-26 → 2000-06-27
    Seismic survey in progress until 27 jun by M/V geco tau towing four 5556 meter long cables in area bound by…
  30. HYDROLANT 2262/002000-06-25 → 2000-06-30
    Seismic survey in progress until 30 jun by M/V western atlas and M/V western patriot towing seven 3000 meter…
  31. HYDROLANT 2261/002000-06-25 → 2000-06-30
    Seismic survey in progress until 30 june by M/V western regent and M/V western kenda towing eight 4000 meter…
  32. HYDROLANT 2260/002000-06-25 → 2000-06-27
    Seismic survey in progress until 26 jun by M/V ramform victory and M/V sanco capitain towing eight 4800…
  33. HYDROLANT 2258/002000-06-25 → 2000-06-27
    Seismic survey in progress until 26 jun by M/V northern access towing 8704 meter long cable in area bound by…
  34. HYDROLANT 2256/002000-06-25 → 2000-06-27
    Seismic survey in progress until 26 jun by M/V polar search towing four 6482 meter long cables in area bound…
  35. HYDROLANT 2249/002000-06-24 → 2000-06-25
    Seismic survey in progress until 26 june by M/V western kenda and M/V western regent towing eight 4000 meter…
  36. HYDROLANT 2237/002000-06-23 → 2000-06-25
    Seismic survey in progress until 24 jun by M/V northern access towing 8704 meter long cable in area bound by…
  37. HYDROLANT 2234/002000-06-23 → 2000-06-25
    Seismic survey in progress until 24 jun by M/V polar search towing four 6482 meter long cables in area bound…
  38. HYDROLANT 2231/002000-06-23 → 2000-06-26
    Seismic survey in progress until 25 jun by M/V geco tau towing four 5556 meter long cables in area bound by…
  39. HYDROLANT 2226/002000-06-22 → 2000-06-27
    Cable laying operations in progress until 26 jun by cableship coastal connector along trackline between…
  40. HYDROLANT 2225/002000-06-22 → 2000-06-25
    Seismic survey in progress until 24 jun by M/V ramform victory and M/V sanco capitain towing eight 4800…
  41. HYDROLANT 2222/002000-06-22 → 2000-06-27
    Seismic survey in progress until 26 jun by M/V new venture towing 8334 meter long cable in area bound by…
  42. HYDROLANT 2214/002000-06-21 → 2000-06-23
    Seismic survey in progress until 23 jun by M/V northerm access towing 8704 meter long cable in area bound by…
  43. HYDROLANT 2204/002000-06-20 → 2000-06-25
    Seismic survey in progress until 25 jun by M/V western atlas and M/V western patriot towing seven 3000 meter…
  44. HYDROLANT 2203/002000-06-20 → 2000-06-23
    Seismic survey in progress until 22 jun by M/V geco tau towing four 5556 meter long cables in area bound by…
  45. HYDROLANT 2201/002000-06-20 → 2000-06-23
    Seismic survey in progress until 22 jun by M/V western kenda and M/V western regent towing eight 4000 meter…
  46. HYDROLANT 2200/002000-06-20 → 2000-06-23
    Seismic survey in progress until 22 jun by M/V polar search towing four 6482 meter long cables in area bound…
  47. HYDROLANT 2191/002000-06-19 → 2000-06-22
    Seismic survey in progress until 21 jun by M/V ramform victory and M/V sanco capitain towing eight 4800…
  48. HYDROLANT 2190/002000-06-19 → 2000-06-22
    Seismic survey in progress until 21 jun by M/V new venture towing 8334 meter long cable in area bound by…
  49. HYDROLANT 2180/002000-06-18 → 2000-06-21
    Seismic survey in progress until 20 jun by M/V northerm access towing 8704 meter long cable in area between…
  50. HYDROLANT 2175/002000-06-17 → 2000-06-20
    Seismic survey in progress until 19 jun by M/V western kenda and M/V western regent towing eight 4000 meter…

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 93 · seahazards