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 · 51 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 1452/032003-07-29 → 2003-08-06
    Seismic survey in progress until 060300Z aug by M/V bulldog towing 15 meter long cable in area bound by…
  2. HYDROLANT 1450/032003-07-29 → 2003-08-01
    Seismic survey 291500Z jul to 011500Z aug by M/V thales venturer towing 15 meter long cable in area bound by…
  3. HYDROLANT 1439/032003-07-26 → 2003-07-29
    Seismic survey 261500Z to 291500Z jul by M/V thales venturer towing 15 meter long cable in area bound by…
  4. HYDROLANT 1432/032003-07-25 → 2003-07-29
    Seismic survey in progress until 290200Z jul by M/V cgg harmattan towing six 6000 meter long cables in area…
  5. HYDROLANT 1431/032003-07-25 → 2003-07-26
    Seismic survey in progress until 261500Z jul by M/V thales venturer towing 15 meter long cable in area bound…
  6. HYDROLANT 1429/032003-07-25 → 2003-07-29
    Seismic survey in progress until 030300Z aug by M/V bulldog towing 15 meter long cable in area bound by…
  7. HYDROLANT 1427/032003-07-25 → 2003-07-25
    Seismic survey in progress until 260300Z jul by M/V thales venturer towing 15 meter long cable in area bound…
  8. HYDROLANT 1426/032003-07-25 → 2003-07-25
    Seismic survey in progress until 280300Z jul by M/V bulldog towing 15 meter long cable in area bound by…
  9. HYDROLANT 1421/032003-07-24 → 2003-07-25
    Seismic survey in progress until 250300Z jul by M/V thales venturer towing 15 meter long cable in area bound…
  10. HYDROLANT 1416/032003-07-23 → 2003-07-24
    Seismic survey in progress until 240300Z jul by M/V thales venturer towing 15 meter long cable in area bound…
  11. HYDROLANT 1412/032003-07-22 → 2003-07-23
    Seismic survey in progress until 230300Z jul by M/V thales venturer towing 15 meter long cable in area bound…
  12. HYDROLANT 1379/032003-07-18 → 2003-07-25
    Seismic survey in progress until 250300Z jul by M/V bulldog towing 15 meter long cable in area bound by…
  13. HYDROLANT 1289/032003-07-03 → 2003-07-06
    Seismic survey in progress until 060400Z jul by M/V tropicaliente towing two 20 meter long cables in area…
  14. HYDROLANT 1288/032003-07-03 → 2003-07-06
    Seismic survey in progress until 060259Z jul by M/V cgg harmattan towing six 6000 meter long cables in area…
  15. HYDROLANT 1281/032003-07-01 → 2003-07-03
    Seismic survey in progress until 030400Z jul by M/V tropicaliente towing two 20 meter long cables in area…
  16. HYDROLANT 1272/032003-06-30 → 2003-07-02
    Seismic survey in progress until 020259Z jul by M/V cgg harmattan towing six 6000 meter long cables in area…
  17. HYDROLANT 1234/032003-06-26 → 2003-06-29
    Seismic survey in progress until 290259Z jun by M/V cgg harmattan towing six 6000 meter long cables in area…
  18. HYDROLANT 1233/032003-06-26 → 2003-06-30
    Seismic survey in progress until 300400Z jun by M/V tropicaliente towing two 20 meter long cables in area…
  19. HYDROLANT 1218/032003-06-23 → 2003-06-26
    Seismic survey in progress until 270400Z jun by M/V tropicaliente towing two 20 meter long cables in area…
  20. HYDROLANT 1217/032003-06-23 → 2003-06-26
    Seismic survey in progress until 260259Z jun by M/V cgg harmattan towing six 6000 meter long cables in area…
  21. HYDROLANT 1208/032003-06-21 → 2003-06-23
    Seismic survey in progress until 240400Z jun by M/V tropicaliente towing two 20 meter long cables in area…
  22. HYDROLANT 1202/032003-06-20 → 2003-06-23
    Seismic survey in progress until 230259Z jun by M/V cgg harmattan towing six 6000 meter long cables in area…
  23. HYDROLANT 1189/032003-06-18 → 2003-06-21
    Seismic survey in progress until 210400Z jun by M/V tropicaliente towing two 20 meter long cables in area…
  24. HYDROLANT 1184/032003-06-17 → 2003-06-20
    Seismic survey in progress until 200259Z jun by M/V cgg harmattan towing six 6000 meter long cables in area…
  25. HYDROLANT 1165/032003-06-14 → 2003-06-18
    Seismic survey in progress until 180400Z jun by M/V tropicaliente towing two 20 meter long cables in area…
  26. HYDROLANT 1164/032003-06-14 → 2003-06-17
    Seismic survey in progress until 170300Z jun by M/V cgg harmattan towing six 6000 meter long cables in area…
  27. HYDROLANT 1141/032003-06-11 → 2003-06-14
    Seismic survey in progress until 140300Z jun by M/V cgg harmattan towing six 6000 meter long cables in area…
  28. HYDROLANT 1132/032003-06-10 → 2003-06-11
    Seismic survey in progress until 110300Z jun by M/V cgg alize towing eight 7408 meter long cables in area…
  29. HYDROLANT 1131/032003-06-10 → 2003-06-14
    Seismic survey in progress until 140400Z jun by M/V tropicaliente towing two 20 meter long cables in area…
  30. HYDROLANT 1120/032003-06-08 → 2003-06-10
    Seismic survey in progress until 110400Z jun by M/V tropicaliente towing two 20 meter long cables in area…
  31. HYDROLANT 1119/032003-06-08 → 2003-06-11
    Seismic survey in progress until 110300Z jun by M/V cgg harmattan towing six 6000 meter long cables in area…
  32. HYDROLANT 1112/032003-06-07 → 2003-06-10
    Seismic survey in progress until 100300Z jun by M/V cgg alize towing eight 7408 meter long cables in area…
  33. HYDROLANT 1095/032003-06-05 → 2003-06-08
    Seismic survey in progress until 080259Z jun by M/V cgg harmattan towing six 6000 meter long cables in area…
  34. HYDROLANT 1094/032003-06-05 → 2003-06-08
    Seismic survey in progress until 080400Z jun by M/V tropicaliente towing two 20 meter long cables in area…
  35. HYDROLANT 1090/032003-06-04 → 2003-06-07
    Seismic survey in progress until 070259Z jun by M/V cgg alize towing eight 7408 meter long cables in area…
  36. HYDROLANT 1077/032003-06-02 → 2003-06-05
    Seismic survey in progress until 050259Z jun by M/V cgg harmattan towing six 6000 meter long cables in area…
  37. HYDROLANT 1076/032003-06-02 → 2003-06-04
    Seismic survey in progress until 040259Z jun by M/V cgg alize towing eight 7408 meter long cables in area…
  38. HYDROLANT 1071/032003-06-01 → 2003-06-05
    Seismic survey in progress until 050400Z jun by M/V tropicaliente towing five 6000 meter long cables in area…
  39. HYDROLANT 1064/032003-05-31 → 2003-06-02
    Seismic survey in progress until 020259Z jun by M/V cgg alize towing eight 7408 meter long cables in area…
  40. HYDROLANT 1063/032003-05-31 → 2003-06-02
    Seismic survey in progress until 020259Z jun by M/V cgg harmattan towing six 6000 meter long cables in area…
  41. HYDROLANT 1062/032003-05-31 → 2003-06-02
    Seismic survey in progress until 030100Z jun by M/V tropicaliente towing five 6000 meter long cables in area…
  42. HYDROLANT 1033/032003-05-27 → 2003-05-31
    Seismic survey in progress until 310400Z may by M/V tropicaliente towing five 6000 meter long cables in area…
  43. HYDROLANT 1032/032003-05-27 → 2003-05-30
    Seismic survey in progress until 300259Z may by M/V cgg harmattan towing six 6000 meter long cables in area…
  44. HYDROLANT 1031/032003-05-27 → 2003-05-30
    Seismic survey in progress until 300259Z may by M/V cgg alize towing eight 7408 meter long cables in area…
  45. HYDROLANT 1019/032003-05-25 → 2003-05-27
    Seismic survey in progress until 270259Z may by M/V cgg harmattan towing five 7408 meter long cables in area…
  46. HYDROLANT 1012/032003-05-24 → 2003-05-27
    Seismic survey in progress until 270259Z may by M/V cgg alize towing eight 7408 meter long cables in area…
  47. HYDROLANT 1000/032003-05-22 → 2003-05-25
    Seismic survey in progress until 242359Z may by M/V cgg harmattan towing five 7408 meter long cables in area…
  48. HYDROLANT 999/032003-05-22 → 2003-05-25
    Seismic survey in progress until 250500Z may by M/V tropicaliente towing five 6000 meter long cables in area…
  49. HYDROLANT 987/032003-05-21 → 2003-05-24
    Seismic survey in progress until 232359Z may by M/V cgg alize towing eight 7408 meter long cables in area…
  50. HYDROLANT 975/032003-05-19 → 2003-05-22
    Seismic survey in progress until 212359Z may by M/V cgg harmattan towing five 7408 meter long cables in area…

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 66 · seahazards