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 1408/012001-05-15 → 2001-05-16
    Seismic survey in progress until 15 may by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  2. HYDROLANT 1389/012001-05-13 → 2001-05-18
    Seismic survey in progress until 17 may by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  3. HYDROLANT 1388/012001-05-13 → 2001-05-18
    Seismic survey in progress until 17 may by M/V geco tau towing 11000 meter long cable along trackline…
  4. HYDROLANT 1379/012001-05-12 → 2001-05-17
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 12 may in area bound by 24-54S…
  5. HYDROLANT 1378/012001-05-12 → 2001-05-15
    Seismic survey in progress until 14 may by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  6. HYDROLANT 1358/012001-05-10 → 2001-05-12
    Seismic survey by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter long cables: a. in progress…
  7. HYDROLANT 1357/012001-05-10 → 2001-05-13
    Seismic survey in progress until 12 may by M/V cgg harmattan towing 4500 meter long cable in area bound by…
  8. HYDROLANT 1356/012001-05-10 → 2001-05-14
    Seismic survey in progress until 13 may by M/V geco tau towing 11000 meter long cable in area bound by…
  9. HYDROLANT 1343/012001-05-08 → 2001-05-15
    6500 meter long seismic cables with buoys, yellow, adrift at 062055Z may in: a. 24-28.0S 042-15.0W
  10. HYDROLANT 1328/012001-05-06 → 2001-05-09
    Seismic survey in progress until 08 may by M/V geco tau towing 10200 meter long cable in area bound by…
  11. HYDROLANT 1327/012001-05-06 → 2001-05-10
    Seismic survey in progress until 10 may by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  12. HYDROLANT 1326/012001-05-06 → 2001-05-08
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 06 may in area bound by 24-15S…
  13. HYDROLANT 1322/012001-05-05 → 2001-05-06
    Seismic survey in progress until 08 may by M/V geco tau towing 10200 meter long cable in area bound by…
  14. HYDROLANT 1299/012001-05-03 → 2001-05-06
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 03 may in area bound by 24-10S…
  15. HYDROLANT 1298/012001-05-03 → 2001-05-06
    Seismic survey in progress until 05 may by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  16. HYDROLANT 1284/012001-04-30 → 2001-05-05
    Seismic survey in progress until 04 may by M/V geco tau towing 10200 meter long cable in area bound by…
  17. HYDROLANT 1283/012001-04-30 → 2001-05-03
    Seismic survey in progress until 02 may by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  18. HYDROLANT 1280/012001-04-29 → 2001-05-03
    Seismic survey by M/V northern access towing 8705 meter long cable: a. 29 apr in area bound by 23-25S…
  19. HYDROLANT 1271/012001-04-28 → 2001-04-30
    Seismic survey in progress until 29 apr by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  20. HYDROLANT 1252/012001-04-26 → 2001-04-30
    Seismic survey in progress until 29 apr by M/V geco tau towing 10200 meter long cable in area bound by…
  21. HYDROLANT 1246/012001-04-25 → 2001-04-28
    Seismic survey in progress until 27 apr by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  22. HYDROLANT 1232/012001-04-24 → 2001-04-29
    Seismic survey by M/V northern access towing 8705 meter long cable: a. 24 apr in area bound by 25-45S…
  23. HYDROLANT 1221/012001-04-23 → 2001-04-24
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 23 apr in area bound by 26-15S…
  24. HYDROLANT 1220/012001-04-23 → 2001-04-26
    Seismic survey in progress until 25 apr by M/V geco tau towing 10200 meter long cable in area bound by…
  25. HYDROLANT 1215/012001-04-22 → 2001-04-23
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 22 apr in area bound by 26-10S…
  26. HYDROLANT 1214/012001-04-22 → 2001-04-25
    Seismic survey in progress until 24 apr by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  27. HYDROLANT 1210/012001-04-21 → 2001-04-26
    Seismic survey in progress until 25 apr by M/V western patriot towing seven 3000 meter long cables in area…
  28. HYDROLANT 1204/012001-04-20 → 2001-04-22
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 20 apr in area bound by 25-15S…
  29. HYDROLANT 1203/012001-04-20 → 2001-04-23
    Seismic survey in progress until 25 apr by M/V geco tau towing 10200 meter long cable in area bound by…
  30. HYDROLANT 1194/012001-04-19 → 2001-04-20
    Seismic survey in progress until 19 apr by M/V geco tau towing 10200 meter long cable in area bound by…
  31. HYDROLANT 1193/012001-04-19 → 2001-04-22
    Seismic survey in progress until 21 apr by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  32. HYDROLANT 1186/012001-04-18 → 2001-04-19
    Seismic survey in progress until 18 apr by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  33. HYDROLANT 1181/012001-04-17 → 2001-04-20
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 17 apr in area bound by 24-35S…
  34. HYDROLANT 1172/012001-04-16 → 2001-04-18
    Seismic survey in progress until 17 apr by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  35. HYDROLANT 1171/012001-04-16 → 2001-04-21
    Seismic survey in progress until 20 apr by M/V western patriot towing seven 3000 meter long cables in area…
  36. HYDROLANT 1162/012001-04-15 → 2001-04-17
    Seismic survey in progress until 16 apr by M/V northern access towing 4800 meter long cable in area bound by…
  37. HYDROLANT 1145/012001-04-13 → 2001-04-16
    Seismic survey in progress until 15 apr by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  38. HYDROLANT 1131/012001-04-12 → 2001-04-15
    Seismic survey in progress until 15 apr by M/V northern access towing 4800 meter long cable in area bound by…
  39. HYDROLANT 1122/012001-04-11 → 2001-04-13
    Seismic survey in progress until 13 apr by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  40. HYDROLANT 1121/012001-04-11 → 2001-04-16
    Seismic survey in progress until 15 apr by M/V western patriot towing seven 3000 meter long cables in area…
  41. HYDROLANT 1120/012001-04-11 → 2001-04-12
    Seismic survey in progress until 11 april by M/V geco tau towing 10000 meter long cable vicinity of…
  42. HYDROLANT 1112/012001-04-10 → 2001-04-15
    Seismic survey in progress until 14 apr by M/V veritas viking II towing six 6500 meter long cables in area…
  43. HYDROLANT 1108/012001-04-09 → 2001-04-12
    Seismic survey in progress until 11 apr by M/V northern access towing 4800 meter long cable in area bound by…
  44. HYDROLANT 1104/012001-04-09 → 2001-04-11
    Seismic survey in progress until 10 apr by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  45. HYDROLANT 1097/012001-04-08 → 2001-04-11
    Seismic survey in progress until 10 apr by M/V geco tau towing 10000 meter long cable in area bound by…
  46. HYDROLANT 1094/012001-04-07 → 2001-04-09
    Seismic survey in progress until 08 apr by M/V northern access towing 4800 meter long cable in area bound by…
  47. HYDROLANT 1087/012001-04-06 → 2001-04-10
    Seismic survey in progress until 09 apr by M/V veritas viking II towing six 6500 meter long cables in area…
  48. HYDROLANT 1086/012001-04-06 → 2001-04-09
    Seismic survey in progress until 08 apr by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  49. HYDROLANT 1084/012001-04-06 → 2001-04-11
    Seismic survey in progress until 10 apr by M/V western patriot towing seven 3000 meter long cables in area…
  50. HYDROLANT 1073/012001-04-05 → 2001-04-08
    Seismic survey in progress until 07 apr by M/V geco tau towing 10000 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 80 · seahazards