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 1363/062006-07-21 → 2006-07-26
    Seismic survey in progress until 25 jul by M/V cgg laurentian towing six 4000 meter long cables in area…
  2. HYDROLANT 1362/062006-07-21 → 2006-07-24
    Seismic survey in progress until 23 jul by M/V ramform valiant towing ten 6000 meter long cables in area…
  3. HYDROLANT 1350/062006-07-18 → 2006-07-21
    Seismic survey in progress until 20 jul by M/V ramform valiant towing ten 6000 meter long cables in area…
  4. HYDROLANT 1322/062006-07-15 → 2006-07-19
    Seismic survey in progress until 18 jul by M/V cgg laurentian towing six 4000 meter long cables in area…
  5. HYDROLANT 1321/062006-07-15 → 2006-07-22
    Seismic survey 150300Z to 220259Z jul by M/V cgg alize in area bound by 25-04.28S 045-59.10W, 24-25.65S…
  6. HYDROLANT 1320/062006-07-15 → 2006-07-22
    Seismic survey 150300Z to 220259Z jul by M/V ramform towing ten 6000 long cables in area bound by 24-00S…
  7. HYDROLANT 1319/062006-07-15 → 2006-07-18
    Seismic survey in progress until 17 jul by M/V ramform valiant towing ten 6000 meter long cables in area…
  8. HYDROLANT 1316/062006-07-14 → 2006-07-15
    Seismic survey in progress until 18 jul by M/V cgg laurentian towing six 4000 meter long cables in area…
  9. HYDROLANT 1292/062006-07-12 → 2006-07-15
    Seismic survey in progress until 14 jul by M/V ramform valiant towing ten 6000 meter long cables in area…
  10. HYDROLANT 1290/062006-07-11 → 2006-07-14
    Seismic survey 11 thru 13 jul by M/V cgg laurentian towing six 4000 meter long cables in area bound by…
  11. HYDROLANT 1283/062006-07-09 → 2006-07-15
    Seismic survey in progress until 150259Z jul by M/V ramform challenger towing ten 6000 meter long cables in…
  12. HYDROLANT 1281/062006-07-08 → 2006-07-11
    Seismic survey 080300Z to 110300Z jul by M/V cgg laurentian towing six 4000 meter long cables in area bound…
  13. HYDROLANT 1276/062006-07-07 → 2006-07-12
    Seismic survey 07 thru 11 jul by M/V ramform valiant towing ten 6000 meter long cables in area bound by…
  14. HYDROLANT 1264/062006-07-06 → 2006-07-07
    Seismic survey in progress until 072000Z jul by M/V cgg laurentian towing six 4000 meter long cables in area…
  15. HYDROLANT 1260/062006-07-05 → 2006-07-06
    Seismic survey in progress until 070300Z jul by M/V cgg laurentian towing six 4000 meter long cables in area…
  16. HYDROLANT 1247/062006-07-01 → 2006-07-07
    Seismic survey 03 thru 06 jul by M/V ramform valiant towing ten 6000 meter long cables in area bound by…
  17. HYDROLANT 1237/062006-06-30 → 2006-07-15
    Seismic survey in progress until 150259Z jul by M/V cgg alize towing ten 6000 meter long cables in area…
  18. HYDROLANT 1236/062006-06-30 → 2006-07-09
    Seismic survey in progress until 150259Z jul by M/V ramform challenger towing ten 6000 meter long cables in…
  19. HYDROLANT 1205/062006-06-26 → 2006-07-01
    Seismic survey in progress until 30 jun by M/V ramform valiant towing ten 6000 meter long cables in area…
  20. HYDROLANT 1188/062006-06-23 → 2006-06-26
    Seismic survey in progress until 25 jun by M/V ramform valiant towing ten 6000 meter long cables in area…
  21. HYDROLANT 1167/062006-06-21 → 2006-06-30
    Seismic survey in progress until 300259Z jun by M/V cgg alize towing ten 6000 meter long cables in area…
  22. HYDROLANT 1164/062006-06-20 → 2006-06-23
    Seismic survey in progress until 22 jun by M/V ramform valiant towing ten 6000 meter long cables in area…
  23. HYDROLANT 1148/062006-06-17 → 2006-06-20
    Seismic survey in progress until 19 jun by M/V ramform valiant towing ten 6000 meter long cables in area…
  24. HYDROLANT 1140/062006-06-15 → 2006-06-17
    Seismic survey in progress until 16 jun by M/V ramform valiant towing ten 6000 meter long cables in area…
  25. HYDROLANT 1121/062006-06-11 → 2006-06-14
    Seismic survey in progress until 13 jun by M/V ramform valiant towing ten 6000 meter long cables in area…
  26. HYDROLANT 1119/062006-06-10 → 2006-06-21
    Seismic survey in progress until 210259Z jun by M/V cgg alize towing ten 6000 meter long cables in area…
  27. HYDROLANT 1114/062006-06-09 → 2006-06-10
    Seismic survey in progress until 100259Z jun by M/V ramform valiant towing ten 6000 meter long cables in…
  28. HYDROLANT 1104/062006-06-08 → 2006-12-27
    Seismic survey 10 jun until further notice by M/V cgg symphony towing 8500 meter long cable in area bound by…
  29. HYDROLANT 1043/062006-05-31 → 2006-06-10
    Seismic survey in progress until 100259Z jun by M/V cgg alize towing ten 6000 meter long cables in area…
  30. HYDROLANT 960/062006-05-19 → 2006-05-31
    Seismic survey 190300Z to 310259Z may by M/V cgg alize towing ten 6000 meter long cables in area bound by…
  31. HYDROLANT 874/062006-05-07 → 2006-05-19
    Seismic survey in progress until 190259Z may by M/V cgg alize towing ten 6000 meter long cables in area…
  32. HYDROLANT 869/062006-05-06 → 2006-05-07
    Seismic survey in progress until 070259Z may by M/V cgg alize towing ten 6000 meter long cables in area…
  33. HYDROLANT 864/062006-05-05 → 2006-05-06
    Seismic survey in progress until 060259Z may by M/V cgg alize towing ten 6000 meter long cables in area…
  34. HYDROLANT 835/062006-04-30 → 2006-05-05
    Seismic survey 040300Z to 100259Z may by M/V cgg alize towing ten 6000 meter long cables in area bound by…
  35. HYDROLANT 834/062006-04-30 → 2006-05-04
    Cable laying operations in progress until 040259Z may by M/V cgg alize in area bound by 25-05S 046-07W,…
  36. HYDROLANT 825/062006-04-29 → 2006-05-01
    Seismic survey in progress until 30 apr by M/V ramform valiant towing ten 6000 meter long cables in area…
  37. HYDROLANT 806/062006-04-27 → 2006-04-29
    Seismic survey in progress until 28 apr by M/V ramform valiant towing ten 6000 meter long cables in area…
  38. HYDROLANT 760/062006-04-21 → 2006-04-25
    Seismic survey in progress until 24 apr by M/V ramform valiant towing ten 6000 meter long cables in area…
  39. HYDROLANT 730/062006-04-14 → 2006-04-21
    Seismic survey in progress until 20 apr by M/V ramform valiant towing ten 6000 meter long cables in area…
  40. HYDROLANT 709/062006-04-11 → 2006-04-14
    Seismic survey in progress until 13 apr by M/V ramform valiant towing ten 6000 meter long cables in area…
  41. HYDROLANT 677/062006-04-06 → 2006-04-11
    Seismic survey in progress until 10 apr by M/V ramform valiant towing ten 6000 meter long cables in area…
  42. HYDROLANT 644/062006-04-01 → 2006-04-06
    Seismic survey in progress until 05 apr by M/V ramform valiant towing ten 6000 meter long cables in area…
  43. HYDROLANT 600/062006-03-27 → 2006-04-01
    Seismic survey in progress until 31 mar by M/V ramform valiant towing ten 6000 meter long cables in area…
  44. HYDROLANT 593/062006-03-25 → 2006-03-27
    Seismic survey in progress until 28 mar by M/V ramform valiant towing ten 6000 meter long cables in area…
  45. HYDROLANT 553/062006-03-21 → 2006-03-25
    Seismic survey in progress until 24 mar by M/V ramform valiant towing ten 6000 meter long cables in area…
  46. HYDROLANT 527/062006-03-17 → 2006-03-21
    Seismic survey in progress until 20 mar by M/V ramform valiant towing ten 6000 meter long cables in area…
  47. HYDROLANT 513/062006-03-15 → 2006-03-17
    Seismic survey in progress until 16 mar by M/V ramform valiant towing ten 6000 meter long cables in area…
  48. HYDROLANT 465/062006-03-09 → 2006-03-13
    Seismic survey in progress until 12 mar by M/V ramform valiant towing ten 6000 meter long cables in area…
  49. HYDROLANT 447/062006-03-05 → 2006-03-09
    Seismic survey in progress until 08 mar by M/V ramform valiant towing ten 6000 meter long cables in area…
  50. HYDROLANT 419/062006-03-01 → 2006-03-05
    Seismic survey in progress until 04 mar by M/V ramform valiant towing ten 6000 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 56 · seahazards