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 242/032003-02-02 → 2003-02-07
    Seismic survey 060900Z to 112300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  2. HYDROLANT 225/032003-01-31 → 2003-02-05
    Seismic survey in progress until 050200Z feb by M/V cgg alize towing eight 4 mile long cables in area bound…
  3. HYDROLANT 222/032003-01-31 → 2003-02-03
    Seismic survey in progress until 02 feb by M/V bulldog towing 15 meter long cable in area bound by 11-12.3S…
  4. HYDROLANT 207/032003-01-29 → 2003-01-31
    Seismic survey in progress until 010200Z feb by M/V cgg alize towing eight 6000 meter long cables in area…
  5. HYDROLANT 198/032003-01-28 → 2003-01-31
    Seismic survey in progress until 30 jan by M/V bulldog towing 15 meter long cable in area bound by 11-10.3S…
  6. HYDROLANT 182/032003-01-26 → 2003-01-29
    Seismic survey in progress until 290200Z jan by M/V cgg alize towing eight 7400 meter long cables in area…
  7. HYDROLANT 173/032003-01-25 → 2003-01-28
    Seismic survey in progress until 27 jan by M/V bulldog towing 15 meter long cable in area bound by 11-11.1S…
  8. HYDROLANT 155/032003-01-23 → 2003-01-26
    Seismic survey in progress until 260200Z jan by M/V cgg alize towing eight 7400 meter long cables in area…
  9. HYDROLANT 151/032003-01-22 → 2003-01-25
    Seismic survey in progress until 24 jan by M/V bulldog towing 15 meter long cable in area bound by 11-11.1S…
  10. HYDROLANT 134/032003-01-19 → 2003-01-22
    Seismic survey in progress until 21 jan by M/V bulldog towing 15 meter long cable in area bound by 11-14.6S…
  11. HYDROLANT 126/032003-01-18 → 2003-01-23
    Seismic survey in progress until 230200Z jan by M/V cgg alize towing eight 6000 meter long cables in area…
  12. HYDROLANT 108/032003-01-16 → 2003-01-19
    Seismic survey in progress until 18 jan by M/V bulldog towing 15 meter long cable in area bound by 11-15.6S…
  13. HYDROLANT 105/032003-01-15 → 2003-01-17
    Seismic survey in progress until 16 jan by M/V ramform explorer towing eight 6500 meter long cables in area…
  14. HYDROLANT 89/032003-01-13 → 2003-01-16
    Seismic survey in progress until 15 jan by M/V bulldog towing 15 meter long cable in area bound by 11-10.6S…
  15. HYDROLANT 58/032003-01-10 → 2003-01-13
    Seismic survey in progress until 12 jan by M/V bulldog towing 15 meter long cable in area bound by 11-11.1S…
  16. HYDROLANT 46/032003-01-07 → 2003-01-10
    Seismic survey in progress until 09 jan by M/V bulldog towing 15 meter long cable in area bound by 11-11.8S…
  17. HYDROLANT 20/032003-01-04 → 2003-01-07
    Seismic survey in progress until 06 jan by M/V bulldog towing 15 meter long cable in area bound by 11-10.8S…
  18. HYDROLANT 15/032003-01-03 → 2003-01-05
    Seismic survey in progress until 050159Z jan by M/V ramform explorer towing eight 6853 meter long cables in…
  19. HYDROLANT 10/032003-01-02 → 2003-01-03
    Seismic survey in progress until 03 jan by M/V ramform explorer towing eight 6853 meter long cables in area…
  20. HYDROLANT 2/032003-01-01 → 2003-01-04
    Seismic survey in progress until 03 jan by M/V bulldog towing 15 meter long cable in area bound by 11-11.7S…
  21. HYDROLANT 1/032003-01-01 → 2003-01-03
    Seismic survey in progress until 02 jan by M/V ramform explorer towing eight 6853 meter long cables in area…
  22. HYDROLANT 2863/022002-12-29 → 2003-01-01
    Seismic survey in progress until 31 dec by M/V bulldog towing 15 meter long cable in area bound by 11-10.7S…
  23. HYDROLANT 2854/022002-12-28 → 2003-01-01
    Seismic survey in progress until 31 dec by M/V ramform explorer towing eight 6853 meter long cables in area…
  24. HYDROLANT 2843/022002-12-26 → 2002-12-29
    Seismic survey in progress until 28 dec by M/V bulldog towing 15 meter long cable in area bound by 11-09.4S…
  25. HYDROLANT 2841/022002-12-25 → 2002-12-28
    Seismic survey in progress until 27 dec by M/V ramform explorer towing eight 6853 meter long cables in area…
  26. HYDROLANT 2833/022002-12-24 → 2002-12-26
    Seismic survey in progress until 25 dec by M/V bulldog towing 15 meter long cable in area bound by 11-08.8S…
  27. HYDROLANT 2823/022002-12-22 → 2002-12-25
    Seismic survey in progress until 24 dec by M/V ramform explorer towing eight 6853 meter long cables in area…
  28. HYDROLANT 2822/022002-12-22 → 2002-12-24
    Seismic survey in progress until 240159Z dec by M/V cgg harmattan towing eight 4500 meter long cables in…
  29. HYDROLANT 2809/022002-12-20 → 2002-12-23
    Seismic survey in progress until 22 dec by M/V bulldog towing 15 meter long cable in area bound by 11-08.3S…
  30. HYDROLANT 2783/022002-12-18 → 2002-12-21
    Seismic survey in progress until 20 dec by M/V ramform explorer towing eight 6853 meter long cables in area…
  31. HYDROLANT 2773/022002-12-17 → 2002-12-20
    Seismic survey in progress until 19 dec by M/V bulldog towing 15 meter long cable in area bound by 11-07.9S…
  32. HYDROLANT 2747/022002-12-14 → 2002-12-17
    Seismic survey in progress until 16 dec by M/V bulldog towing 15 meter long cable in area bound by 11-07.6S…
  33. HYDROLANT 2727/022002-12-11 → 2002-12-14
    Seismic survey in progress until 13 dec by M/V bulldog towing 15 meter long cable in area bound by 11-06.3S…
  34. HYDROLANT 2726/022002-12-11 → 2002-12-15
    Seismic survey in progress until 14 dec by M/V ramform explorer towing eight 6853 meter long cables in area…
  35. HYDROLANT 2708/022002-12-08 → 2002-12-11
    Seismic survey in progress until 10 dec by M/V bulldog towing 15 meter long cable in area bound by 11-05.5S…
  36. HYDROLANT 2700/022002-12-07 → 2002-12-11
    Seismic survey in progress until 10 dec by M/V ramform explorer towing eight 6853 meter long cables in area…
  37. HYDROLANT 2679/022002-12-05 → 2002-12-08
    Seismic survey in progress until 07 dec by M/V bulldog towing 15 meter long cable in area bound by 11-05.5S…
  38. HYDROLANT 2662/022002-12-02 → 2002-12-05
    Seismic survey in progress until 04 dec by M/V bulldog towing 15 meter long cable in area bound by 11-05.5S…
  39. HYDROLANT 2659/022002-12-01 → 2002-12-07
    Seismic survey in progress until 06 dec by M/V ramform explorer towing eight 6853 meter long cables in area…
  40. HYDROLANT 2637/022002-11-29 → 2002-12-02
    Seismic survey in progress until 01 dec by M/V bulldog towing 15 meter long cable in area bound by 11-04.7S…
  41. HYDROLANT 2636/022002-11-29 → 2002-11-30
    Seismic survey in progress until 29 nov by M/V ramform explorer towing eight 6853 meter long cables in area…
  42. HYDROLANT 2617/022002-11-26 → 2002-11-29
    Seismic survey in progress until 28 nov by M/V bulldog towing 15 meter long cable in area bound by 11-05.3S…
  43. HYDROLANT 2593/022002-11-23 → 2002-11-26
    Seismic survey in progress until 25 nov by M/V bulldog towing 15 meter long cable in area bound by 11-05.3S…
  44. HYDROLANT 2582/022002-11-22 → 2002-11-24
    Seismic survey in progress until 23 nov by M/V ramform explorer towing eight 6853 meter long cables in area…
  45. HYDROLANT 2576/022002-11-21 → 2002-11-22
    Seismic survey in progress until 21 nov by M/V ramform explorer towing eight 6853 meter long cables in area…
  46. HYDROLANT 2572/022002-11-20 → 2002-11-23
    Seismic survey in progress until 22 nov by M/V bulldog towing 15 meter long cable in area bound by 11-05.9S…
  47. HYDROLANT 2562/022002-11-20 → 2002-11-20
    Seismic survey in progress until 25 nov by M/V bulldog towing 15 meter long cable in area bound by 11-05.3S…
  48. HYDROLANT 2538/022002-11-18 → 2002-11-20
    Seismic survey in progress until 19 nov by M/V ramform explorer towing eight 6853 meter long cables in area…
  49. HYDROLANT 2533/022002-11-17 → 2002-11-20
    Seismic survey in progress until 19 nov by M/V bulldog towing 15 meter long cable in area bound by 11-05.9S…
  50. HYDROLANT 2498/022002-11-13 → 2002-11-18
    Seismic survey 15 thru 17 nov by M/V ramform explorer towing eight 6853 meter long cables 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 69 · seahazards