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 1340/092009-07-18 → 2009-07-25
    Seismic survey in progress until 250259Z jul by M/V ramform sovereing towing 14 8100 meter long cables in…
  2. HYDROLANT 1339/092009-07-18 → 2009-07-24
    Seismic survey in progress until 240259Z jul by M/V western neptune towing 12 3.5 mile long cables in area…
  3. HYDROLANT 1338/092009-07-18 → 2009-07-25
    Seismic survey 180300Z to 250259Z jul by M/V ocean europe and M/V sanco star in area bound by 22-22.72S…
  4. HYDROLANT 1337/092009-07-18 → 2009-07-24
    Seismic survey 180300Z to 240259Z jul by M/V ocean surveyor towing 400 meter long cable in area bound by…
  5. HYDROLANT 1316/092009-07-15 → 2009-07-21
    Seismic survey in progress until 20 jul by M/V toisa vigilante towing two mile long cable in area bound by…
  6. HYDROLANT 1311/092009-07-14 → 2009-07-18
    Seismic survey 140300Z to 180259Z jul by M/V rig supporter with submersible in area bound by 25-50.07S…
  7. HYDROLANT 1309/092009-07-14 → 2009-07-18
    Seismic survey 140300Z to 180259Z jul by M/V ramform sovereing towing 14 8100 meter long cables in area…
  8. HYDROLANT 1308/092009-07-14 → 2009-07-18
    Seismic survey 140300Z to 180259Z jul by M/V ocean europe and M/V sanco star in area bound by 22-22.72S…
  9. HYDROLANT 1307/092009-07-14 → 2009-07-18
    Seismic survey 140300Z to 180259Z jul by M/V western neptune towing 12 3.5 mile long cables in area bound by…
  10. HYDROLANT 1303/092009-07-13 → 2009-07-19
    Seismic survey 141530Z to 202359Z jul by M/V ramform valiant towing ten 8100 meter long cables in area bound…
  11. HYDROLANT 1296/092009-07-13 → 2009-07-13
    Seismic survey 15 thru 18 jul by M/V ramform valiant towing ten 8100 meter long cables in area bound by…
  12. HYDROLANT 1286/092009-07-11 → 2009-07-13
    Seismic survey in progress until 18 jul by M/V ramform valiant towing ten 8100 meter long cables in area…
  13. HYDROLANT 1279/092009-07-10 → 2009-07-15
    Seismic survey in progress until 15 jul by M/V toisa vigilante towing two mile long cable in area bound by…
  14. HYDROLANT 1271/092009-07-09 → 2009-07-10
    Seismic survey in progress until 10 jul by M/V toisa vigilante towing two mile long cable in area bound by…
  15. HYDROLANT 1263/092009-07-08 → 2009-07-14
    Seismic survey 080300Z to 140259Z jul by M/V rig supporter with submersible in area bound by 24-52S 042-56W,…
  16. HYDROLANT 1261/092009-07-08 → 2009-07-14
    Seismic survey 080300Z to 140259Z jul by M/V ocean surveyor towing 400 meter long cable in area bound by…
  17. HYDROLANT 1260/092009-07-08 → 2009-07-14
    Seismic survey 080300Z to 140259Z jul by M/V ramform sovereing towing 14 8100 meter long cables in area…
  18. HYDROLANT 1259/092009-07-08 → 2009-07-14
    Seismic survey 080300Z to 140259Z jul by M/V western neptune towing 12 3.5 mile long cables in area bound by…
  19. HYDROLANT 1258/092009-07-08 → 2009-07-14
    Seismic survey 080300Z to 140259Z jul by M/V ocean europe and M/V sanco star in area bound by 22-22.72S…
  20. HYDROLANT 1244/092009-07-04 → 2009-07-08
    Seismic survey in progress until 080259Z jul by M/V ocean europe and M/V sanco star in area bound by…
  21. HYDROLANT 1243/092009-07-04 → 2009-07-08
    Seismic survey in progress until 080259Z jul by M/V western neptune towing 12 3.5 mile long cables in area…
  22. HYDROLANT 1240/092009-07-04 → 2009-07-08
    Seismic survey 040300Z to 080259Z jul by M/V ocean surveyor towing 400 meter long cable in area bound by…
  23. HYDROLANT 1239/092009-07-04 → 2009-07-08
    Seismic survey 040300Z to 080259Z jul by M/V ramform sovereing towing 14 8100 meter long cables in area…
  24. HYDROLANT 1237/092009-07-04 → 2009-07-08
    Seismic survey 040300Z to 080259Z jul by M/V rig supporter with submersible in area bound by 24-52S 042-56W,…
  25. HYDROLANT 1234/092009-07-03 → 2009-07-09
    Seismic survey in progress until 10 jul by M/V toisa vigilante towing two mile long cable in area bound by…
  26. HYDROLANT 1232/092009-07-03 → 2009-07-11
    Seismic survey in progress until 10 jul by M/V ramform valiant towing ten 8100 meter long cables in area…
  27. HYDROLANT 1221/092009-07-01 → 2009-07-04
    Seismic survey 010300Z to 040259Z jul by M/V western neptune towing 12 3.5 mile long cables in area bound by…
  28. HYDROLANT 1220/092009-07-01 → 2009-07-04
    Seismic survey 010300Z to 040259Z jul by M/V ocean europe and M/V sanco star in area bound by 22-22.72S…
  29. HYDROLANT 1219/092009-07-01 → 2009-07-04
    Seismic survey 010300Z to 040259Z jul by M/V ramform sovereing towing 14 8100 meter long cables in area…
  30. HYDROLANT 1218/092009-07-01 → 2009-07-04
    Seismic survey 010300Z to 040259Z jul by M/V rig supporter with submersible in area bound by 24-52S 042-56W,…
  31. HYDROLANT 1214/092009-06-30 → 2009-07-03
    Seismic survey in progress until 06 jul by M/V toisa vigilante towing two mile long cable in area bound by…
  32. HYDROLANT 1190/092009-06-26 → 2009-06-30
    Seismic survey in progress until 29 jun by M/V toisa vigilante towing two mile long cable in area bound by…
  33. HYDROLANT 1189/092009-06-26 → 2009-06-26
    Seismic survey in progress until 27 jun by M/V toisa vigilante towing two mile long cable in area bound by…
  34. HYDROLANT 1186/092009-06-26 → 2009-07-01
    Seismic survey 260300Z jun to 010259Z jul by M/V rig supporter with submersible in area bound by 24-52S…
  35. HYDROLANT 1185/092009-06-26 → 2009-07-01
    Seismic survey 260300Z jun to 010259Z jul by M/V ramform sovereing towing 14 8100 meter long cables in area…
  36. HYDROLANT 1178/092009-06-25 → 2009-07-01
    Seismic survey 260300Z jun to 010259Z jul by M/V western neptune towing 12 3.5 mile long cables in area…
  37. HYDROLANT 1177/092009-06-25 → 2009-07-01
    Seismic survey 260300Z jun to 010259Z jul by M/V ocean europe and M/V sanco star in area bound by 22-22.72S…
  38. HYDROLANT 1176/092009-06-25 → 2009-06-26
    Seismic survey 260300Z jun to 010259Z jul by M/V ramform sovereing and M/V rig supporter towing 14 8100…
  39. HYDROLANT 1175/092009-06-25 → 2009-07-03
    Seismic survey in progress until 02 jul by M/V ramform valiant towing ten 8100 meter long cables in area…
  40. HYDROLANT 1150/092009-06-22 → 2009-06-25
    Seismic survey 220300Z to 250259Z jun by M/V ocean europe and M/V sanco star in area bound by 22-22.72S…
  41. HYDROLANT 1145/092009-06-20 → 2009-06-25
    Seismic survey in progress until 24 jun by M/V toisa vigilante towing two mile long cable in area bound by…
  42. HYDROLANT 1144/092009-06-20 → 2009-06-24
    Seismic survey by M/V discoverer towing 10000 meter long cables: a. 20 and 21 jun in area bound by 12-11S…
  43. HYDROLANT 1139/092009-06-20 → 2009-06-20
    Seismic survey in progress until 24 jun by M/V toisa vigilante in area bound by 03-49.5S 037-02.5W, 03-40.8S…
  44. HYDROLANT 1137/092009-06-20 → 2009-06-25
    Seismic survey 200300Z to 250259Z jun by M/V ocean surveyor towing 400 meter long cable in area bound by…
  45. HYDROLANT 1136/092009-06-20 → 2009-06-20
    Seismic survey 23 jun by M/V discoverer in area bound by 12-53S 038-08W, 12-56S 038-10W, 13-40S 037-05W,…
  46. HYDROLANT 1129/092009-06-19 → 2009-06-22
    Seismic survey 190300Z to 250259Z jun by M/V western neptune towing 12 3.5 mile long cables in area bound by…
  47. HYDROLANT 1128/092009-06-19 → 2009-06-22
    Seismic survey 190300Z to 220259Z jun by M/V ocean europe and M/V sanco star in area bound by 22-25.93S…
  48. HYDROLANT 1117/092009-06-18 → 2009-06-25
    Seismic survey in progress until 24 jun by M/V ramform valiant towing ten 8100 meter long cables in area…
  49. HYDROLANT 1116/092009-06-17 → 2009-06-18
    Seismic survey in progress until 24 jun by M/V ramform valiant towing 14 8100 meter long cables in area…
  50. HYDROLANT 1113/092009-06-17 → 2009-06-20
    Seismic survey by M/V discoverer towing 10000 meter long cables: a. 18 jun in area bound by 11-25S 036-23W,…

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 40 · seahazards