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 1963/092009-10-10 → 2009-10-17
    Seismic survey in progress until 170259Z oct by M/V ramform sovereing towing 14 8100 meter long cables in…
  2. HYDROLANT 1962/092009-10-10 → 2009-10-17
    Seismic survey in progress until 170259Z oct by M/V ocean europe and M/V sanco star in area bound by…
  3. HYDROLANT 1961/092009-10-10 → 2009-10-14
    Seismic survey in progress until 170259Z oct by M/V western neptune towing 12 3.5 mile long cables in area…
  4. HYDROLANT 1928/092009-10-06 → 2009-10-10
    Seismic survey in progress until 100259Z oct by M/V ramform sovereing towing 14 8100 meter long cables in…
  5. HYDROLANT 1927/092009-10-06 → 2009-10-10
    Seismic survey in progress until 100259Z oct by M/V western neptune towing 12 3.5 mile long cables in area…
  6. HYDROLANT 1926/092009-10-06 → 2009-10-10
    Seismic survey in progress until 100259Z oct by M/V ocean europe and M/V sanco star in area bound by…
  7. HYDROLANT 1882/092009-09-30 → 2009-10-02
    Seismic survey in progress until 020259Z oct by M/V veritas vantage towing eight 7000 meter long cables in…
  8. HYDROLANT 1881/092009-09-30 → 2009-10-02
    Seismic survey in progress until 020259Z oct by M/V ocean europe and M/V sanco star in area bound by…
  9. HYDROLANT 1880/092009-09-30 → 2009-10-02
    Seismic survey 300300Z sep to 020259Z oct by M/V western neptune towing 12 3.5 mile long cables in area…
  10. HYDROLANT 1862/092009-09-27 → 2009-10-03
    Seismic survey in progress until further notice by M/V western patriot towing 6000 meter long cables in area…
  11. HYDROLANT 1852/092009-09-25 → 2009-10-06
    Seismic survey in progress until 05 oct by M/V sea surveyor towing 7600 meter long cable in area bound by…
  12. HYDROLANT 1828/092009-09-23 → 2009-09-30
    Seismic survey in progress until 300259Z sep by M/V ocean europe and M/V sanco star in area bound by…
  13. HYDROLANT 1826/092009-09-23 → 2009-09-30
    Seismic survey 230300Z to 300259Z sep by M/V western neptune towing 12 3.5 mile long cables in area bound by…
  14. HYDROLANT 1825/092009-09-23 → 2009-09-30
    Seismic survey 230300Z to 300259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in area…
  15. HYDROLANT 1817/092009-09-22 → 2009-09-23
    Seismic survey in progress until 22 sep by M/V toisa vigilant in area bound by 11-50.65S 036-18.69W,…
  16. HYDROLANT 1806/092009-09-21 → 2009-09-23
    Seismic survey 210300Z to 240259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in area…
  17. HYDROLANT 1798/092009-09-20 → 2009-09-27
    Seismic survey in progress until further notice by M/V western patriot towing 6000 meter long cables in area…
  18. HYDROLANT 1770/092009-09-16 → 2009-09-23
    Seismic survey in progress until 230259Z sep by M/V western neptune towing 12 3.5 mile long cables in area…
  19. HYDROLANT 1769/092009-09-16 → 2009-09-23
    Seismic survey in progress until 230259Z sep by M/V ocean europe and M/V sanco star in area bound by…
  20. HYDROLANT 1766/092009-09-16 → 2009-09-21
    Seismic survey 170300Z to 210259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in area…
  21. HYDROLANT 1764/092009-09-16 → 2009-09-21
    Seismic survey in progress until 20 sep by M/V toisa vigilant in area bound by 11-50.65S 036-18.69W,…
  22. HYDROLANT 1753/092009-09-15 → 2009-09-15
    Seismic survey in progress until 20 sep by M/V ramform valiant towing ten 8100 meter long cables in area…
  23. HYDROLANT 1754/092009-09-15 → 2009-09-20
    Seismic survey by M/V discoverer towing 5.4 mile long cable: a. 17 sep in area bound by 00-33N 041-49W,…
  24. HYDROLANT 1737/092009-09-12 → 2009-09-16
    Seismic survey in progress until 160259Z sep by M/V western neptune towing 12 3.5 mile long cables in area…
  25. HYDROLANT 1730/092009-09-11 → 2009-09-12
    Seismic survey in progress until 160259Z sep by M/V western neptune towing 12 3.5 mile long cables in area…
  26. HYDROLANT 1729/092009-09-11 → 2009-09-16
    Seismic survey in progress until 160259Z sep by M/V ocean europe and M/V sanco star in area bound by…
  27. HYDROLANT 1727/092009-09-11 → 2009-09-15
    Seismic survey by M/V discoverer towing 5.4 mile long cable: a. 11 sep in area bound by 00-23N 040-00W,…
  28. HYDROLANT 1704/092009-09-09 → 2009-09-11
    Seismic survey by M/V discoverer towing 5.4 mile long cable: a. 09 and 10 sep in area bound by 00-23N…
  29. HYDROLANT 1700/092009-09-08 → 2009-09-09
    Seismic survey in progress until 13 sep by M/V discoverer towing 5.4 mile long cable in areas bound by: a.…
  30. HYDROLANT 1697/092009-09-07 → 2009-09-16
    Seismic survey in progress until 18 sep by M/V toisa vigilant in area bound by 11-50.65S 036-18.69W,…
  31. HYDROLANT 1691/092009-09-06 → 2009-09-09
    Seismic survey in progress until 090259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in…
  32. HYDROLANT 1688/092009-09-05 → 2009-09-13
    Seismic survey in progress until 12 sep by M/V ramform valiant towing ten 8100 meter long cables in area…
  33. HYDROLANT 1687/092009-09-05 → 2009-09-09
    Seismic survey in progress until 090259Z sep by M/V western neptune towing 12 3.5 mile long cables in area…
  34. HYDROLANT 1686/092009-09-05 → 2009-09-09
    Seismic survey in progress until 090259Z sep by M/V ocean surveyor towing 400 meter long cables in area…
  35. HYDROLANT 1685/092009-09-05 → 2009-09-09
    Seismic survey in progress until 090259Z sep by M/V ocean europe and M/V sanco star in area bound by…
  36. HYDROLANT 1662/092009-09-01 → 2009-09-05
    Seismic survey 03 and 04 sep by M/V discoverer towing 5.4 mile long cable in area bound by 02-28S 039-52W,…
  37. HYDROLANT 1647/092009-08-29 → 2009-08-30
    Seismic survey in progress until 29 aug by M/V toisa vigilante towing two mile long cable in area bound by…
  38. HYDROLANT 1637/092009-08-28 → 2009-09-05
    Seismic survey in progress until 050259Z sep by M/V western neptune towing 12 3.5 mile long cables in area…
  39. HYDROLANT 1636/092009-08-28 → 2009-09-05
    Seismic survey in progress until 050259Z sep by M/V ocean europe and M/V sanco star in area bound by…
  40. HYDROLANT 1635/092009-08-28 → 2009-09-05
    Seismic survey in progress until 050259Z sep by M/V veritas vantage towing eight 7000 meter long cables in…
  41. HYDROLANT 1634/092009-08-28 → 2009-09-05
    Seismic survey in progress until 050259Z sep by M/V ramform sovereing towing 14 8100 meter long cables in…
  42. HYDROLANT 1633/092009-08-28 → 2009-09-05
    Seismic survey in progress until 04 sep by M/V ramform valiant towing ten 8100 meter long cables in area…
  43. HYDROLANT 1624/092009-08-27 → 2009-08-30
    Seismic survey 27 thru 29 aug by M/V discoverer towing 10000 meter long cable in area bound by 02-45S…
  44. HYDROLANT 1602/092009-08-24 → 2009-08-30
    Seismic survey in progress until further notice by M/V western patriot towing 6000 meter long cables in area…
  45. HYDROLANT 1595/092009-08-23 → 2009-08-28
    Seismic survey 230300Z to 280259Z aug by M/V western neptune towing 12 3.5 mile long cables in area bound by…
  46. HYDROLANT 1590/092009-08-22 → 2009-08-27
    Seismic survey by M/V discoverer towing 10000 meter long cable: a. 22 and 23 aug in area bound by 02-10S…
  47. HYDROLANT 1589/092009-08-22 → 2009-08-27
    Seismic survey in progress until 26 aug by M/V toisa vigilante towing two mile long cable in area bound by…
  48. HYDROLANT 1582/092009-08-20 → 2009-08-23
    Seismic survey 210300Z to 230259Z aug by M/V western neptune towing 12 3.5 mile long cables in area bound by…
  49. HYDROLANT 1581/092009-08-20 → 2009-08-28
    Seismic survey 210300Z to 280259Z aug by M/V ocean europe and M/V sanco star in area bound by 22-25.93S…
  50. HYDROLANT 1580/092009-08-20 → 2009-08-28
    Seismic survey 210300Z to 280259Z aug by M/V veritas vantage towing eight 7000 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 38 · seahazards