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 · 18 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 446/052005-03-08 → 2005-03-08
    Seismic survey in progress until 130259Z mar by M/V ramform valiant towing twelve 6000 meter long cables in…
  2. HYDROLANT 442/052005-03-07 → 2005-03-08
    Seismic survey in progress until 080259Z mar by M/V ramform valiant towing twelve 6000 meter long cables in…
  3. HYDROLANT 437/052005-03-05 → 2005-03-08
    Seismic survey in progress until 080259Z mar by M/V western pride towing ten 6000 meter long cables in area…
  4. HYDROLANT 436/052005-03-05 → 2005-03-08
    Seismic survey in progress until 080259Z mar by M/V geco tau in area bound by 22-08S 040-12W, 22-17S…
  5. HYDROLANT 412/052005-03-01 → 2005-03-05
    Seismic survey in progress until 050259Z mar by M/V geco tau in area bound by 22-08S 040-12W, 22-17S…
  6. HYDROLANT 411/052005-03-01 → 2005-03-05
    Seismic survey in progress until 050259Z mar by M/V western pride towing ten 6000 meter long cables in area…
  7. HYDROLANT 389/052005-02-26 → 2005-03-01
    Seismic survey in progress until 010259Z mar by M/V geco tau in area bound by 22-17S 040-00W, 22-27S…
  8. HYDROLANT 388/052005-02-26 → 2005-03-02
    Seismic survey in progress until 020300Z mar by M/V cgg harmattan towing six 6000 meter long cables in area…
  9. HYDROLANT 387/052005-02-26 → 2005-03-01
    Seismic survey in progress until 010259Z mar by vessel western pride towing ten 6000 meter long cables in…
  10. HYDROLANT 382/052005-02-25 → 2005-02-26
    Seismic survey in progress until 280300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area…
  11. HYDROLANT 361/052005-02-22 → 2005-02-27
    Seismic survey in progress until 270300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area…
  12. HYDROLANT 359/052005-02-22 → 2005-02-26
    Seismic survey 230300Z to 260259Z feb by vessel western pride towing ten 6000 meter long cables in area…
  13. HYDROLANT 353/052005-02-21 → 2005-02-22
    Seismic survey 200300Z to 220300Z and 230300Z to 260300Z feb by M/V cgg harmattan towing six 6000 meter long…
  14. HYDROLANT 349/052005-02-20 → 2005-02-21
    Seismic survey in progress until 230300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area…
  15. HYDROLANT 347/052005-02-19 → 2005-02-22
    Seismic survey in progress until 230259Z feb by vessel western pride towing ten 6000 meter cables in area…
  16. HYDROLANT 345/052005-02-19 → 2005-02-22
    Seismic survey in progress until 220259Z feb by M/V ocean explorer towing 6000 meter long cable in area…
  17. HYDROLANT 344/052005-02-19 → 2005-02-22
    Seismic survey in progress until 220259Z feb by M/V falcon explorer towing 200 meter long cable in area…
  18. HYDROLANT 341/052005-02-18 → 2005-02-20
    Seismic survey 180300Z feb to 210300Z feb by vessel cgg harmattan towing six 6000 meter long cables in area…
  19. HYDROLANT 307/052005-02-14 → 2005-02-15
    Seismic survey in progress until 150259Z feb by vessel western pride towing ten 6000 meter long cables in…
  20. HYDROLANT 299/052005-02-13 → 2005-02-15
    Seismic survey in progress until 150259Z feb by M/V bergen surveyor towing 6000 meter cable in area bound by…
  21. HYDROLANT 288/052005-02-11 → 2005-02-14
    Seismic survey in progress until 140300Z feb by M/V ccg harmattan towing six 6000 meter long cables in area…
  22. HYDROLANT 285/052005-02-10 → 2004-02-11
    Seismic survey in progress until 110259Z feb by M/V ocean explorer towing 6000 meters long cable in area…
  23. HYDROLANT 283/052005-02-10 → 2005-02-11
    Seismic survey in progress until 110259Z feb by vessel western pride towing ten 6000 meters cables in area…
  24. HYDROLANT 260/052005-02-06 → 2005-02-10
    Seismic survey in progress until 110259Z feb by vessel western pride towing ten 6000 meter long cables in…
  25. HYDROLANT 259/052005-02-06 → 2005-02-07
    Seismic survey in progress until 070300Z feb by vessel ocean explorer towing 6000 meter long cable in area…
  26. HYDROLANT 254/052005-02-05 → 2005-02-11
    Seismic survey in progress until 110300Z feb by M/V ccg harmattan towing six 6000 meter long cables in area…
  27. HYDROLANT 253/052005-02-04 → 2005-02-06
    Seismic survey in progress until 060259Z feb by M/V western pride towing ten 6000 meter long cables in area…
  28. HYDROLANT 251/052005-02-04 → 2005-02-10
    Seismic survey in progress until 110259Z feb by M/V ocean explorer towing 6000 meter long cable in area…
  29. HYDROLANT 250/052005-02-04 → 2005-02-05
    Seismic survey in progress until 050300Z feb by M/V ocean surveyor towing 84 meter long cable in area bound…
  30. HYDROLANT 246/052005-02-03 → 2005-02-07
    Seismic survey in progress until 070300Z feb by M/V ccg harmattan towing six 6000 meter long cables in area…
  31. HYDROLANT 239/052005-02-02 → 2005-02-05
    Seismic survey in progress until 050259Z feb by M/V western pride towing ten 6000 meter long cables in area…
  32. HYDROLANT 238/052005-02-02 → 2005-02-03
    Seismic survey in progress until 040300Z feb by M/V ccg harmattan towing six 6000 meter long cables in area…
  33. HYDROLANT 237/052005-02-02 → 2005-02-04
    Seismic survey in progress until 040300Z feb by M/V ocean surveyor towing 84 meter long cable in area bound…
  34. HYDROLANT 231/052005-02-01 → 2005-02-04
    Seismic survey in progress until 040259Z feb by M/V bergen surveyor towing 6000 meter long cable in area…
  35. HYDROLANT 230/052005-02-01 → 2005-02-04
    Seismic survey in progress until 040259Z feb by M/V ocean explorer towing 6000 meter long cable in area…
  36. HYDROLANT 224/052005-01-31 → 2005-02-02
    Seismic survey in progress until 030300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area…
  37. HYDROLANT 218/052005-01-30 → 2005-02-02
    Cable operations 310300Z jan to 030300Z feb by cableship ocean surveyor towing 84 meter long cable in area…
  38. HYDROLANT 196/052005-01-25 → 2005-02-01
    Seismic survey in progress until 010259Z feb by M/V bergen surveyor towing 6000 meter long cable in area…
  39. HYDROLANT 195/052005-01-25 → 2005-02-01
    Seismic survey in progress until 010259Z feb by M/V ocean explorer towing 6000 meter long cable in area…
  40. HYDROLANT 178/052005-01-22 → 2005-01-25
    Seismic survey in progress until 250259Z jan by M/V bergen surveyor towing 6000 meter long cable in area…
  41. HYDROLANT 177/052005-01-22 → 2005-01-25
    Seismic survey in progress until 250259Z jan by M/V ocean explorer towing 6000 meter long cable in area…
  42. HYDROLANT 176/052005-01-22 → 2005-01-26
    Seismic survey in progress until 260259Z jan by M/V western pride towing ten 6000 meter long cables in area…
  43. HYDROLANT 174/052005-01-22 → 2005-01-25
    Cable operations in progress until 250300Z jan by cableship ocean surveyor towing 84 meter long cable in…
  44. HYDROLANT 170/052005-01-21 → 2005-01-22
    Cable operations 24 thru 26 jan by cableship ocean surveyor in area bound by 11-06.1S 037-05.1W, 10-57.5S…
  45. HYDROLANT 151/052005-01-19 → 2005-01-22
    Seismic survey in progress until 220259Z jan by M/V ocean explorer towing 6000 meter long cable in area…
  46. HYDROLANT 150/052005-01-19 → 2005-01-22
    Seismic survey in progress until 220259Z jan by M/V bergen surveyor towing 6000 meter long cable in area…
  47. HYDROLANT 127/052005-01-18 → 2005-01-20
    Seismic survey in progress until 200259Z jan by M/V western pride towing ten 6000 meter long cables in area…
  48. HYDROLANT 87/052005-01-13 → 2005-01-16
    Seismic survey in progress until 160259Z jan by M/V western pride towing ten 6000 meter long cables in area…
  49. HYDROLANT 86/052005-01-13 → 2005-01-19
    Seismic survey in progress until 190259Z jan by M/V ocean explorer towing 6000 meter long cable in area…
  50. HYDROLANT 85/052005-01-13 → 2005-01-19
    Seismic survey in progress until 190259Z jan by M/V bergen surveyor towing 6000 meter long cable 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 60 · seahazards