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 2603/002000-07-24 → 2000-07-27
    Seismic survey in progress until 26 jul by M/V polar search towing four 6482 meter long cables in area bound…
  2. HYDROLANT 2596/002000-07-24 → 2000-07-27
    Seismic survey in progress until 26 jul by M/V new venture towing 8334 meter long cable in area bound by…
  3. HYDROLANT 2595/002000-07-24 → 2000-07-28
    Seismic survey in progress until 28 jul by M/V ramform explorer towing eight 6500 meter long cables in area…
  4. HYDROLANT 2578/002000-07-22 → 2000-07-25
    Cable laying operations in progress until 250430Z jul by M/V teliri towing 1500 meter long cable along…
  5. HYDROLANT 2577/002000-07-22 → 2000-07-25
    Seismic survey in progress until 24 jul by M/V ramform victory, M/V sanco capitain and M/V falcon explorer…
  6. HYDROLANT 2576/002000-07-22 → 2000-07-25
    Seismic survey in progress until 24 jul by M/V cgg harmattan towing six 6482 meter long cables in area bound…
  7. HYDROLANT 2575/002000-07-22 → 2000-07-24
    Seismic survey in progress until 23 jul by M/V northern access towing 8704 meter long cable in area bound by…
  8. HYDROLANT 2567/002000-07-21 → 2000-07-22
    Seismic survey in progress until 21 jul by M/V northern access towing 8704 meter long cable in area bound by…
  9. HYDROLANT 2566/002000-07-21 → 2000-07-24
    Seismic survey in progress until 23 jul by M/V polar search towing four 6482 meter long cables in area bound…
  10. HYDROLANT 2565/002000-07-21 → 2000-07-26
    Seismic survey in progress until 260300Z jul by M/V geco tau towing 11000 meter long cable in area bound by…
  11. HYDROLANT 2564/002000-07-21 → 2000-07-24
    Seismic survey in progress until 23 jul by M/V new venture towing 8334 meter long cable in area bound by…
  12. HYDROLANT 2563/002000-07-21 → 2000-07-26
    Seismic survey in progress until 25 jul by M/V western atlas and M/V western patriot towing seven 3000 meter…
  13. HYDROLANT 2557/002000-07-20 → 2000-07-25
    Seismic survey in progress until 25 jul by M/V western regent and M/V kenda towing eight 4000 meter long…
  14. HYDROLANT 2550/002000-07-20 → 2000-07-23
    Seismic survey in progress until 22 jul by M/V ramform explorer towing eight 6500 meter long cables in area…
  15. HYDROLANT 2549/002000-07-20 → 2000-07-21
    Seismic survey in progress until 220300Z jul by M/V geco tau towing 11000 meter long cable in area bound by…
  16. HYDROLANT 2548/002000-07-20 → 2000-07-21
    Seismic survey in progress until 21 jul by M/V new venture towing 8500 meter long cable in area bound by…
  17. HYDROLANT 2545/002000-07-19 → 2000-07-20
    Seismic survey in progress until further notice by M/V ramform explorer towing eight 6500 meter long cables…
  18. HYDROLANT 2539/002000-07-19 → 2000-07-22
    Seismic survey in progress until 21 jul by M/V cgg harmattan towing six 6482 meter long cables in area bound…
  19. HYDROLANT 2538/002000-07-19 → 2000-07-20
    Seismic survey in progress until 21 jul by M/V western regent and M/V kenda towing eight 4000 meter long…
  20. HYDROLANT 2529/002000-07-18 → 2000-07-19
    Seismic survey in progress until 190300Z jul by M/V geco tau towing 11000 meter long cable in area bound by…
  21. HYDROLANT 2527/002000-07-18 → 2000-07-21
    Seismic survey in progress until 20 jul by M/V polar search towing four 6482 meter long cables in area bound…
  22. HYDROLANT 2526/002000-07-18 → 2000-07-21
    Seismic survey in progress until 21 jul by M/V western atlas towing 400 meter long cable in area bound by…
  23. HYDROLANT 2517/002000-07-17 → 2000-07-20
    Seismic survey in progress until 19 jul by M/V ramform victory, M/V sanco capitain and M/V falcon explorer…
  24. HYDROLANT 2516/002000-07-17 → 2000-07-19
    Seismic survey in progress until 20 jul by M/V western regent towing eight 4000 meter long cables in area…
  25. HYDROLANT 2509/002000-07-16 → 2000-07-19
    Seismic survey in progress until 18 jul by M/V cgg harmattan towing six 6482 meter long cables in area…
  26. HYDROLANT 2508/002000-07-16 → 2000-07-19
    Seismic survey in progress until 18 jul by M/V kenda towing eight 3200 meter long cables in area bound by…
  27. HYDROLANT 2507/002000-07-16 → 2000-07-20
    Seismic survey in progress until 23 jul by M/V new venture towing 8500 meter long cable in area bound by…
  28. HYDROLANT 2506/002000-07-16 → 2000-07-18
    Seismic survey in progress until 17 jul by M/V geco tau towing 10186 meter long cable in area bound by…
  29. HYDROLANT 2503/002000-07-15 → 2000-08-04
    Seismic survey in progress until further notice by M/V cgg alize towing eight 4500 meter long cables in area…
  30. HYDROLANT 2495/002000-07-15 → 2000-07-17
    Seismic survey in progress until 16 jul by M/V western regent towing eight 4000 meter long cables in area…
  31. HYDROLANT 2494/002000-07-15 → 2000-07-16
    Seismic survey in progress until 15 jul by M/V kenda towing eight 3200 meter long cables in area bound by…
  32. HYDROLANT 2493/002000-07-15 → 2000-07-22
    Cable laying operations in progress until 220001Z jul by M/V teleri towing 1500 meter long cable along…
  33. HYDROLANT 2491/002000-07-15 → 2000-07-18
    Seismic survey in progress until 17 jul by M/V polar search towing four 6482 meter long cables in area bound…
  34. HYDROLANT 2490/002000-07-15 → 2000-07-18
    Seismic survey in progress until 18 jul by M/V western atlas towing 400 meter long cable in area bound by…
  35. HYDROLANT 2487/002000-07-14 → 2000-07-15
    Seismic survey in progress until 16 jul by M/V western regent and M/V western kenda towing eight 4000 meter…
  36. HYDROLANT 2482/002000-07-14 → 2000-07-16
    Seismic survey in progress until 15 jul by M/V geco tau towing 10186 meter long cable in area bound by…
  37. HYDROLANT 2481/002000-07-14 → 2000-07-15
    Cable laying operations 142100Z to 172100Z jul by M/V teleri along trackline joining 03-33S 037-50W, 03-31S…
  38. HYDROLANT 2480/002000-07-14 → 2000-07-17
    Seismic survey in progress until 16 jul by M/V ramform victory, M/V sanco capitain and M/V falcon explorer…
  39. HYDROLANT 2479/002000-07-14 → 2000-07-18
    Seismic survey in progress until 17 jul by M/V northern access towing 8704 meter long cable in area bound by…
  40. HYDROLANT 2477/002000-07-13 → 2000-07-16
    Seismic survey in progress until 15 jul by M/V new venture towing 8500 meter long cable in area bound by…
  41. HYDROLANT 2471/002000-07-13 → 2000-07-14
    Seismic survey in progress until 15 jul by M/V northern access towing 8704 meter long cable in area bound by…
  42. HYDROLANT 2451/002000-07-12 → 2000-07-15
    Seismic survey in progress until 14 jul by M/V polar search towing four 6482 meter long cables in area bound…
  43. HYDROLANT 2449/002000-07-12 → 2000-07-18
    Seismic survey in progress until 17 jul by M/V ramform explorer towing eight 6500 meter long cables in area…
  44. HYDROLANT 2444/002000-07-11 → 2000-07-14
    Seismic survey in progress until 13 jul by M/V ramform victory, M/V sanco capitain and M/V falcon explorer…
  45. HYDROLANT 2443/002000-07-11 → 2000-07-13
    Seismic survey in progress until 12 jul by M/V northern access towing 8704 meter long cable in area bound by…
  46. HYDROLANT 2442/002000-07-11 → 2000-07-14
    Seismic survey in progress until 14 jul by M/V teleri towing 1500 meter long cable in area bound by 03-45.0S…
  47. HYDROLANT 2433/002000-07-10 → 2000-07-11
    Seismic survey in progress until 10 jul by M/V northern access towing 8704 meter long cable in area bound by…
  48. HYDROLANT 2425/002000-07-09 → 2000-07-15
    Seismic survey in progress until 14 jul by M/V western atlas and M/V western patriot towing 400 meter long…
  49. HYDROLANT 2424/002000-07-09 → 2000-07-12
    Seismic survey in progress until 11 jul by M/V polar search towing four 6482 meter long cables in area bound…
  50. HYDROLANT 2423/002000-07-09 → 2000-07-12
    Seismic survey in progress until 12 jul by M/V new venture towing 8500 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 92 · seahazards