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 1189/002000-04-05 → 2000-04-07
    Seismic survey in progress until 06 apr by M/V geco tau towing 8334 meter long cable in area bound by 25-55S…
  2. HYDROLANT 1172/002000-04-04 → 2000-04-06
    Seismic survey in progress until 05 apr by M/V northern access towing 8704 meter long cable in area bound by…
  3. HYDROLANT 1171/002000-04-04 → 2000-04-06
    Seismic survey in progress until 05 apr by M/V western atlas towing 5000 meter long cable in area bound by…
  4. HYDROLANT 1170/002000-04-04 → 2000-09-17
    Cable laying operations 06 apr until further notice along trackline joining 36-30.6S 056-41.5W, 36-31.5S…
  5. HYDROLANT 1160/002000-04-03 → 2000-04-04
    Seismic survey in progress until 04 apr by M/V western atlas towing 5000 meter long cable in area bound by…
  6. HYDROLANT 1159/002000-04-03 → 2000-04-06
    Seismic survey in progress until 05 apr by M/V geco diamond towing eight 5556 meter long cables in area…
  7. HYDROLANT 1148/002000-04-02 → 2000-04-05
    Seismic survey in progress until 04 apr by M/V geco tau towing 8334 meter long cable in area bound by 24-23S…
  8. HYDROLANT 1147/002000-04-02 → 2000-04-05
    Seismic survey in progress until 04 apr by M/V ramform victory towing eight 7038 meter long cables in area…
  9. HYDROLANT 1146/002000-04-02 → 2000-04-05
    Seismic survey in progress until 04 apr by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  10. HYDROLANT 1130/002000-03-31 → 2000-04-04
    Seismic survey in progress until 03 apr by M/V northern access towing 8704 meter long cable in area bound by…
  11. HYDROLANT 1129/002000-03-31 → 2000-04-03
    Seismic survey in progress until 02 apr by M/V geco diamond towing eight 5556 meter long cables in area…
  12. HYDROLANT 1127/002000-03-31 → 2000-04-05
    Seismic survey in progress until 04 apr by M/V polar search towing 8520 meter long cable in area bound by…
  13. HYDROLANT 1125/002000-03-31 → 2000-04-02
    Seismic survey in progress until 01 apr by M/V geco tau towing 8334 meter long cable in area bound by 24-40S…
  14. HYDROLANT 1119/002000-03-30 → 2000-04-02
    Seismic survey in progress until 01 apr by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  15. HYDROLANT 1118/002000-03-30 → 2000-04-02
    Seismic survey in progress until 01 apr by M/V ramform victory towing eight 7038 meter long cables in area…
  16. HYDROLANT 1117/002000-03-30 → 2000-04-02
    Seismic survey in progress until 01 apr by M/V western atlas towing 6000 meter long cable in area bound by…
  17. HYDROLANT 1113/002000-03-30 → 2000-03-31
    Seismic survey 31 mar thru 02 apr by M/V mezen towing 7408 meter long cable in area bound by 00-57S 044-59W,…
  18. HYDROLANT 1104/002000-03-29 → 2000-03-31
    Seismic survey in progress until 30 mar by M/V polar search towing four 6300 meter long cables in area bound…
  19. HYDROLANT 1096/002000-03-28 → 2000-03-31
    Seismic survey in progress until 30 mar by M/V northern access towing 8704 meter long cable in area bound by…
  20. HYDROLANT 1095/002000-03-28 → 2000-03-31
    Seismic survey in progress until 30 mar by M/V geco diamond towing eight 5556 meter long cables in area…
  21. HYDROLANT 1086/002000-03-27 → 1000-03-30
    Seismic survey in progress until 29 mar by M/V geco tau towing 8334 meter long cable in area bound by 25-13S…
  22. HYDROLANT 1085/002000-03-27 → 2000-03-30
    Seismic survey in progress until 29 mar by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  23. HYDROLANT 1083/002000-03-27 → 2000-03-30
    Seismic survey in progress until 29 mar by M/V geo arctic towing 6400 meter long cable in area bound by…
  24. HYDROLANT 1073/002000-03-26 → 2000-03-30
    Seismic survey in progress until 29 mar by M/V ramform victory towing eight 7038 meter long cables in area…
  25. HYDROLANT 1072/002000-03-26 → 2000-03-28
    Seismic survey in progress until 27 mar M/V northern access towing 8704 meter long cable in area bound by…
  26. HYDROLANT 1068/002000-03-25 → 2000-03-30
    Seismic survey in progress until 29 mar by M/V western atlas towing 6000 meter long cable in area bound by…
  27. HYDROLANT 1067/002000-03-25 → 2000-03-28
    Seismic survey in progress until 27 mar by M/V geco diamond towing eight 5556 meter long cables in area…
  28. HYDROLANT 1056/002000-03-24 → 2000-03-27
    Seismic survey in progress until 26 mar by M/V geco tau towing 8334 meter long cable in area bound by 26-35S…
  29. HYDROLANT 1055/002000-03-24 → 2000-03-27
    Seismic survey in progress until 26 mar by M/V geo arctic towing 6400 meter long cable in area bound by…
  30. HYDROLANT 1053/002000-03-24 → 2000-03-27
    Seismic survey in progress until 26 mar by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  31. HYDROLANT 1040/002000-03-23 → 2000-03-26
    Seismic survey in progress until 25 mar by M/V ramform victory towing eight 7038 meter long cables in area…
  32. HYDROLANT 1039/002000-03-23 → 2000-03-24
    Seismic survey in progress until 25 mar by M/V ramform explorer towing ten 4800 meter long cables in area…
  33. HYDROLANT 1037/002000-03-23 → 2000-03-24
    Seismic survey in progress until 23 mar by M/V geco tau towing 8334 meter long cable in area bound by 26-05S…
  34. HYDROLANT 1036/002000-03-23 → 2000-03-25
    Seismic survey 24 thru 26 mar by M/V western atlas towing 5000 meter long cable in area bound by 16-35S…
  35. HYDROLANT 1034/002000-03-22 → 2000-03-25
    Seismic survey in progress until 24 mar by M/V akademik shatskiy towing 3334 meter long cable in area bound…
  36. HYDROLANT 1032/002000-03-22 → 2000-03-25
    Seismic survey in progress until 24 mar by M/V geco diamond towing eight 5556 meter long cables in area…
  37. HYDROLANT 1019/002000-03-21 → 2000-03-24
    Seismic survey in progress until 23 mar by M/V polar search towing four 6300 meter long cables in area bound…
  38. HYDROLANT 1018/002000-03-21 → 2000-03-22
    Seismic survey in progress until 21 mar by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  39. HYDROLANT 1015/002000-03-21 → 2000-03-23
    Seismic survey in progress until 22 mar by M/V ramform explorer and M/V orka 1 towing ten 4800 meter long…
  40. HYDROLANT 1014/002000-03-21 → 2000-03-23
    Seismic survey in progress until 22 mar by M/V ramform victory towing eight 7038 meter long cables in area…
  41. HYDROLANT 1013/002000-03-21 → 2000-03-23
    Seismic survey in progress until 23 mar by M/V geco tau towing 8334 meter long cable in area bound by 23-58S…
  42. HYDROLANT 1012/002000-03-21 → 2000-03-24
    Seismic survey in progress until 23 mar by M/V geo arctic towing 6000 meter long cable in area bound by…
  43. HYDROLANT 1010/002000-03-21 → 2000-03-24
    Seismic survey in progress until 23 mar by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  44. HYDROLANT 1005/002000-03-21 → 2000-03-23
    Seismic survey in progress until 23 mar by M/V western atlas towing 5000 meter long cable in area bound by…
  45. HYDROLANT 991/002000-03-20 → 2000-03-21
    Seismic survey in progress until 20 mar by M/V ramform vanguard and M/V falcon explorer towing ten 4800…
  46. HYDROLANT 983/002000-03-19 → 2000-03-22
    Seismic survey in progress until 21 mar by M/V geco diamond towing eight 5556 meter long cables in area…
  47. HYDROLANT 981/002000-03-18 → 2000-03-21
    Seismic survey in progress until 20 mar by M/V western atlas towing 5000 meter long cable in area bound by…
  48. HYDROLANT 980/002000-03-18 → 2000-03-21
    Seismic survey in progress until 20 mar by M/V northern access towing 8705 meter long cable in area bound by…
  49. HYDROLANT 979/002000-03-18 → 2000-03-21
    Seismic survey in progress until 20 mar by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  50. HYDROLANT 972/002000-03-18 → 2000-03-20
    Seismic survey in progress until 20 mar by M/V ramform vanguard and M/V falcon explorer towing ten 4800…

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 97 · seahazards