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 1936/991999-09-12 → 1999-10-06
    Seismic survey in progress until 05 oct by M/V western atlas towing six 6000 meter long cables in area bound…
  2. HYDROLANT 1703/991999-08-14 → 1999-09-12
    Seismic survey 15 aug until 30 sep by M/V western atlas towing four 6000 meter long cables in area bound by…
  3. HYDROLANT 1558/991999-07-29 → 1999-08-04
    Underwater cable operations in progress until 03 aug by M/V coastal connector between 23-02S 043-27W and…
  4. HYDROLANT 1477/991999-07-16 → 1999-08-12
    Seismic survey 180400Z jul to 260230Z aug by M/V western atlas towing six 6000 meter long cables in area…
  5. HYDROLANT 1476/991999-07-16 → 1999-07-19
    Cable laying operations in progress until 191000Z jul by M/V coast connector between 03-34S 038-16W and…
  6. HYDROLANT 1469/991999-07-15 → 1999-07-16
    Cable laying operations 152359Z to 270600Z jul by M/V coast connector along trackline joining 03-50.0S…
  7. HYDROLANT 1458/991999-07-14 → 1999-07-15
    Cable laying operations in progress until 191000Z jul by M/V coast connector between 03-50S 038-30W and…
  8. HYDROLANT 1312/991999-06-25 → 1999-07-24
    Seismic survey in progress until 24 jul by M/V akademik shatskiy towing five mile long cable in area bound…
  9. HYDROLANT 1277/991999-06-21 → 2000-01-03
    Seismic survey in progress until further notice by M/V cgg harmattan towing four mile long cables along…
  10. HYDROLANT 1200/991999-06-10 → 1999-06-18
    Seismic survey in progress until 17 jun by M/V iberus towing cable between 24-54.4S 042-08.0W and 36-49.0S…
  11. HYDROLANT 993/991999-05-17 → 1999-05-28
    Seismic survey in progress until further notice by M/V geco marlin towing five mile long cable between…
  12. HYDROLANT 986/991999-05-16 → 1999-05-17
    Seismic survey in progress until further notice by M/V geco marlin towing five mile long cable within 20…
  13. HYDROLANT 981/991999-05-15 → 1999-05-16
    Seismic survey in progress until further notice by M/V geco marlin towing five mile long cable vicinity…
  14. HYDROLANT 974/991999-05-13 → 1999-05-16
    Seismic survey in progress until 15 may by M/V geco marlrebocando towing five mile long cable along…
  15. HYDROLANT 719/991999-04-14 → 1999-05-21
    Seismic survey in progress until further notice by M/V geco diamond towing four cables 1.6 miles long and…
  16. HYDROLANT 673/991999-04-07 → 1999-05-21
    Seismic survey in progress until further notice by M/V cgg harmattan towing six 3600 meter long cables along…
  17. HYDROLANT 658/991999-04-05 → 1999-04-11
    Cable laying operations in progress until 110200Z apr by M/V maersk defender along a trackline joining…
  18. HYDROLANT 437/991999-03-04 → 1999-04-02
    Seismic survey in progress until further notice by M/V harmattan towing six 3600 meter long cables along…
  19. HYDROLANT 299/991999-02-09 → 1999-02-23
    Seismic survey in progress until 22 feb by M/V akademik lazarev towing 4500 meter long cable in area bound…
  20. HYDROLANT 2371/981998-12-11 → 1999-03-04
    Seismic survey in progress until further notice by M/V harmattan towing six 3600 meter long cables along a…

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 104 · seahazards