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 1803/012001-06-22 → 2001-06-26
    Seismic survey in progress until 25 jun by M/V veritas viking II towing six 6500 meter long cables in area…
  2. HYDROLANT 1790/012001-06-21 → 2001-06-24
    Seismic survey in progress until 23 jun by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  3. HYDROLANT 1754/012001-06-18 → 2001-06-18
    Seismic survey in progress until 20 jun by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  4. HYDROLANT 1753/012001-06-18 → 2001-06-22
    Seismic survey in progress until 21 jun by M/V veritas viking II towing six 6500 meter long cables in area…
  5. HYDROLANT 1728/012001-06-15 → 2001-06-18
    Seismic survey in progress until 27 jun by M/V veritas viking II towing six 6500 meter long cables in area…
  6. HYDROLANT 1727/012001-06-15 → 2001-06-18
    Seismic survey in progress until 17 jun by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  7. HYDROLANT 1726/012001-06-15 → 2001-06-18
    Seismic survey in progress until 180300Z jun by M/V northern access towing 4800 meter long cable in area…
  8. HYDROLANT 1720/012001-06-14 → 2001-06-19
    Cable laying operations 15 jun thru 27 jul by M/V maersk defender along trackline joining 03-45.9S…
  9. HYDROLANT 1714/012001-06-13 → 2001-06-16
    Seismic survey in progress until 15 jun by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  10. HYDROLANT 1702/012001-06-12 → 2001-06-15
    Seismic survey in progress until 14 jun by M/V veritas viking II towing six 6500 meter long cables in area…
  11. HYDROLANT 1701/012001-06-12 → 2001-06-13
    Seismic survey in progress until 12 jun by M/V geco tau towing 11000 meter long cable in area bound by…
  12. HYDROLANT 1690/012001-06-11 → 2001-06-15
    Seismic survey in progress until 14 jun by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  13. HYDROLANT 1689/012001-06-11 → 2001-06-13
    Seismic survey in progress until 12 jun by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  14. HYDROLANT 1674/012001-06-09 → 2001-06-11
    Seismic survey in progress until 111500Z jun by M/V northern access towing 4800 meter long cable in area…
  15. HYDROLANT 1672/012001-06-09 → 2001-06-12
    Seismic survey in progress until 11 jun by M/V geco tau towing 11000 meter long cable in area bound by…
  16. HYDROLANT 1671/012001-06-09 → 2001-06-12
    Seismic survey in progress until 11 jun by M/V veritas viking II towing six 6500 meter long cables in area…
  17. HYDROLANT 1670/012001-06-09 → 2001-06-11
    Seismic survey in progress until 10 jun by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  18. HYDROLANT 1656/012001-06-08 → 2001-06-11
    Seismic survey in progress until 10 jun by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  19. HYDROLANT 1648/012001-06-07 → 2001-06-09
    Seismic survey in progress until 09 jun by M/V northern access towing 4800 meter long cable in area bound by…
  20. HYDROLANT 1647/012001-06-07 → 2001-06-10
    Seismic survey in progress until 09 jun by M/V geco tau towing 11000 meter long cable in area bound by…
  21. HYDROLANT 1646/012001-06-07 → 2001-06-09
    Seismic survey in progress until 08 jun by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  22. HYDROLANT 1637/012001-06-06 → 2001-06-08
    Seismic survey in progress until 07 jun by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  23. HYDROLANT 1636/012001-06-06 → 2001-06-07
    Seismic survey in progress until 09 jun by M/V northern access towing 4800 meter long cable in area bound by…
  24. HYDROLANT 1625/012001-06-05 → 2001-06-06
    Seismic survey by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter long cables: a. 05 jun in…
  25. HYDROLANT 1612/012001-06-04 → 2001-06-07
    Seismic survey in progress until 06 jun by M/V geco tau towing 11000 meter long cable in area bound by…
  26. HYDROLANT 1609/012001-06-03 → 2001-06-07
    Seismic survey in progress until 06 jun by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  27. HYDROLANT 1608/012001-06-03 → 2001-06-06
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 03 jun in area bound by 25-54S…
  28. HYDROLANT 1600/012001-06-02 → 2001-06-03
    Seismic survey in progress until 04 jun by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  29. HYDROLANT 1599/012001-06-02 → 2001-06-05
    Seismic survey in progress until 04 jun by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  30. HYDROLANT 1583/012001-06-01 → 2001-06-04
    Seismic survey in progress until 03 jun by M/V geco tau towing 11000 meter long cable in area bound by…
  31. HYDROLANT 1569/012001-05-30 → 2001-06-03
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 30 may in area bound by 25-12S…
  32. HYDROLANT 1568/012001-05-30 → 2001-06-02
    Seismic survey in progress until 01 jun by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  33. HYDROLANT 1567/012001-05-30 → 2001-06-02
    Seismic survey in progress until 01 jun by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  34. HYDROLANT 1552/012001-05-29 → 2001-05-30
    Seismic survey in progress until 30 may by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  35. HYDROLANT 1551/012001-05-29 → 2001-06-01
    Seismic survey in progress until 31 may by M/V geco tau towing 11000 meter long cable in area bound by…
  36. HYDROLANT 1544/012001-05-28 → 2001-05-29
    Seismic survey in progress until 29 may by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  37. HYDROLANT 1541/012001-05-27 → 2001-05-30
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 27 may in area bound by 24-19S…
  38. HYDROLANT 1535/012001-05-26 → 2001-05-30
    Seismic survey in progress until 29 may by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  39. HYDROLANT 1515/012001-05-25 → 2001-05-29
    Seismic survey in progress until 28 may by M/V geco tau towing 11000 meter long cable in area bound by…
  40. HYDROLANT 1497/012001-05-24 → 2001-05-28
    Seismic survey in progress until 27 may by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  41. HYDROLANT 1496/012001-05-24 → 2001-05-27
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 24 may in area bound by 26-08S…
  42. HYDROLANT 1484/012001-05-23 → 2001-05-25
    Seismic survey in progress until 24 may by M/V geco tau towing 11000 meter long cable along trackline…
  43. HYDROLANT 1473/012001-05-22 → 2001-05-26
    Seismic survey in progress until 25 may by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  44. HYDROLANT 1466/012001-05-21 → 2001-05-23
    Seismic survey in progress until 22 may by M/V geco tau towing 11000 meter long cable along trackline…
  45. HYDROLANT 1465/012001-05-21 → 2001-05-24
    Seismic survey in progress until 23 may by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  46. HYDROLANT 1452/012001-05-19 → 2001-05-22
    Seismic survey in progress until 21 may by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…
  47. HYDROLANT 1444/012001-05-18 → 2001-05-21
    Seismic survey in progress until 20 may by M/V geco tau towing 11000 meter long cable along trackline…
  48. HYDROLANT 1443/012001-05-18 → 2001-05-21
    Seismic survey in progress until 20 may by M/V cgg harmattan towing six 6000 meter long cables in area bound…
  49. HYDROLANT 1428/012001-05-17 → 2001-05-21
    Seismic survey by M/V northern access towing 4800 meter long cable: a. 17 may in area bound by 27-04S…
  50. HYDROLANT 1419/012001-05-16 → 2001-05-19
    Seismic survey in progress until 18 may by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…

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 79 · seahazards