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 1593/072007-09-16 → 2007-09-23
    Seismic survey in progress until 22 sep by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  2. HYDROLANT 1585/072007-09-13 → 2007-09-18
    Seismic survey 131900Z to 181900Z sep by M/V hawk explorer towing 10000 meter long cable in area bound by…
  3. HYDROLANT 1570/072007-09-10 → 2007-09-21
    Seismic survey in progress until 210259Z oct by M/V ocean surveyor towing 150 meter long cable in area bound…
  4. HYDROLANT 1567/072007-09-10 → 2007-09-16
    Seismic survey in progress until 160300Z sep by M/V cgg alize towing ten 6500 meter long cables in area…
  5. HYDROLANT 1566/072007-09-10 → 2007-09-11
    Seismic survey in progress until 111200Z sep by M/V hawk explorer towing 10000 meter long cable in area…
  6. HYDROLANT 1555/072007-09-07 → 2007-09-16
    Seismic survey 08 thru 15 sep by M/V amadeus towing eight 6500 meter long cables in area bound by 00-56S…
  7. HYDROLANT 1546/072007-09-07 → 2007-09-09
    Seismic survey in progress until 090259Z sep by M/V hawk explorer towing one 10000 meter long cable in area…
  8. HYDROLANT 1527/072007-09-04 → 2007-09-09
    Seismic survey in progress until 090300Z sep by M/V cgg alize towing ten 6500 meter long cables in area…
  9. HYDROLANT 1521/072007-09-03 → 2007-09-06
    Seismic survey 030300Z to 060259Z sep by M/V hawk explorer towing 10000 meter long cable in area bound by…
  10. HYDROLANT 1510/072007-09-01 → 2007-09-08
    Seismic survey in progress until 07 sep by M/V amadeus towing eight 6500 meter long cables in area bound by…
  11. HYDROLANT 1505/072007-08-31 → 2007-09-03
    Seismic survey in progress until 030259Z sep by M/V hawk explorer towing one 10000 meter long cable in area…
  12. HYDROLANT 1489/072007-08-28 → 2007-09-04
    Seismic survey in progress until 040300Z sep by M/V cgg alize towing six 4000 meter long cables in area…
  13. HYDROLANT 1485/072007-08-27 → 2007-09-01
    Seismic survey in progress until 31 aug by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  14. HYDROLANT 1482/072007-08-26 → 2007-08-29
    Seismic survey in progress until 290259Z aug by M/V hawk explorer towing 1000 meter long cable in area bound…
  15. HYDROLANT 1456/072007-08-22 → 2007-08-28
    Seismic survey in progress until 280300Z aug by M/V cgg alize towing ten 6500 meter long cables in area…
  16. HYDROLANT 1455/072007-08-22 → 2007-08-27
    Seismic survey in progress until 26 aug by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  17. HYDROLANT 1450/072007-08-21 → 2007-08-25
    Seismic survey 201500Z to 250259Z aug by M/V hawk explorer towing 10000 meter long cable in area bound by…
  18. HYDROLANT 1439/072007-08-19 → 2007-08-20
    Seismic survey in progress until 200700Z aug by M/V hawk explorer towing 1000 meter long cable in area bound…
  19. HYDROLANT 1405/072007-08-12 → 2007-08-18
    Seismic survey in progress until 17 aug by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  20. HYDROLANT 1367/072007-08-05 → 2007-08-08
    Seismic survey in progress until 080259Z aug by M/V rig supporter with submersible in area bound by 22-43S…
  21. HYDROLANT 1351/072007-08-02 → 2007-08-25
    Submarine cable operations in progress until further notice by M/V tyco resolute between trackline joining…
  22. HYDROLANT 1340/072007-07-31 → 2007-08-04
    Seismic survey in progress until 040259Z aug by M/V rig supporter with submersible in area bound by 22-43S…
  23. HYDROLANT 1332/072007-07-30 → 2007-08-01
    Seismic survey in progress until 010259Z aug by M/V toisa valiant towing 2000 meter long cables in area…
  24. HYDROLANT 1331/072007-07-30 → 2007-08-05
    Seismic survey in progress until 050300Z aug by M/V cgg alize towing ten 6500 meter long cables in area…
  25. HYDROLANT 1330/072007-07-30 → 2007-08-02
    Seismic survey in progress until 020259Z aug by M/V hawk explorer towing 10000 meter long cable in area…
  26. HYDROLANT 1317/072007-07-27 → 2007-07-29
    Seismic survey 270300Z to 290259Z jul by M/V hawk explorer towing one 10000 meter long cable in area bound…
  27. HYDROLANT 1310/072007-07-26 → 2007-07-31
    Seismic survey 270300Z to 310259Z jul by M/V rig supporter with submersible in area bound by 22-43S 040-57W,…
  28. HYDROLANT 1302/072007-07-25 → 2007-07-26
    Seismic survey in progress until 260259Z jul by M/V rig supporter with submersible in area bound by 22-43S…
  29. HYDROLANT 1300/072007-07-25 → 2007-07-27
    Seismic survey in progress until 270259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  30. HYDROLANT 1287/072007-07-23 → 2007-07-30
    Seismic survey in progress until 300300Z jul by M/V cgg alize towing ten 6500 meter long cables in area…
  31. HYDROLANT 1282/072007-07-21 → 2007-07-24
    Seismic survey in progress until 240259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  32. HYDROLANT 1276/072007-07-20 → 2007-07-21
    Seismic survey in progress until 210259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  33. HYDROLANT 1270/072007-07-19 → 2007-07-20
    Seismic survey in progress until 200259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  34. HYDROLANT 1269/072007-07-19 → 2007-07-25
    Seismic survey in progress until 250259Z jul by M/V rig supporter with submersible in area bound by 22-43S…
  35. HYDROLANT 1268/072007-07-19 → 2007-07-23
    Seismic survey in progress until 230300Z jul by M/V cgg alize towing ten 4000 meter long cables in area…
  36. HYDROLANT 1249/072007-07-16 → 2007-07-19
    Seismic survey in progress until 200259Z jul by M/V rig supporter with submersible in area bound by…
  37. HYDROLANT 1242/072007-07-14 → 2007-07-16
    Seismic survey in progress until 160259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  38. HYDROLANT 1238/072007-07-13 → 2007-07-15
    Seismic survey 131900Z to 150200Z jul by M/V cgg laurentian towing four 6000 meter long cables in area bound…
  39. HYDROLANT 1224/072007-07-11 → 2007-07-14
    Seismic survey in progress until 140259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  40. HYDROLANT 1218/072007-07-10 → 2007-07-11
    Seismic survey in progress until 110259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  41. HYDROLANT 1201/072007-07-09 → 2007-07-10
    Seismic survey in progress until 100259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  42. HYDROLANT 1195/072007-07-08 → 2007-07-09
    Seismic survey in progress until 090259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  43. HYDROLANT 1191/072007-07-07 → 2007-07-12
    Seismic survey in progress until 120259Z jul by M/V rig supporter with submersible in area bound by…
  44. HYDROLANT 1190/072007-07-07 → 2007-07-14
    Seismic survey in progress until 140259Z jul by M/V cgg laurentian towing four 6000 meter long cables in…
  45. HYDROLANT 1188/072007-07-07 → 2007-07-14
    Seismic survey in progress until 140259Z jul by M/V toisa valiant towing 2000 meter long cable in area bound…
  46. HYDROLANT 1177/072007-07-06 → 2007-07-08
    Seismic survey in progress until 080259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  47. HYDROLANT 1167/072007-07-05 → 2007-07-18
    Seismic survey in progress until 180300Z jul by M/V cgg alize towing ten 4000 meter long cables in area…
  48. HYDROLANT 1165/072007-07-05 → 2007-07-07
    Seismic survey in progress until 070259Z jul by M/V hawk explorer towing 10000 meter long cable in area…
  49. HYDROLANT 1153/072007-07-03 → 2007-07-05
    Seismic survey 040300Z to 050259Z jul by M/V hawk explorer towing 10000 meter long cable in area bound by…
  50. HYDROLANT 1152/072007-07-03 → 2007-07-07
    Seismic survey in progress until 070259Z jul by M/V toisa valiant towing 2000 meter long cable in area bound…

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 50 · seahazards