Cable & pipeline work in the South China Sea

Cable laying, pipeline and seismic operations.

in force
3
last 12 months
3
vs previous 12 (4)
-25%
since 1998
575

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 · 3

  1. NAVAREA XI 356/26in force2026-08-06
    Seismic survey by vessel PXGEO 2 towing eight 5-mile cables in the southern Gulf of Thailand and South China Sea until 31 December 2026.
    Gulf of Thailand and South China Sea, Southern Part
  2. HYDROPAC 2099/26in force2026-07-21
    Cable operations are underway in the East China Sea by the cableship ILE DE RE until further notice; wide berth requested.
    East China Sea · China
  3. NAVAREA XI 329/26in force2026-07-21
    Cable ship Ile de Re is laying submarine cable in the Taiwan Strait until further notice.
    Taiwan Strait

Longest in force

  1. NAVAREA XI 329/26in force2026-07-21 · 32 d
    Cable ship Ile de Re is laying submarine cable in the Taiwan Strait until further notice.
    Taiwan Strait
  2. HYDROPAC 2099/26in force2026-07-21 · 31 d
    Cable operations are underway in the East China Sea by the cableship ILE DE RE until further notice; wide berth requested.
    East China Sea · China
  3. NAVAREA XI 356/26in force2026-08-06 · 16 d
    Seismic survey by vessel PXGEO 2 towing eight 5-mile cables in the southern Gulf of Thailand and South China Sea until 31 December 2026.
    Gulf of Thailand and South China Sea, Southern Part

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
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

Other hazards in the South China Sea

Archive · 572 cancelled

  1. HYDROPAC 986/002000-07-06 → 2000-08-05
    Seismic survey in progress until further notice by M/V ramform challenger towing three mile long cable in…
  2. HYDROPAC 441/002000-03-14 → 2000-04-01
    Seismic survey in progress until 31 mar by cableships bergen surveyor and orient explorer towing two mile…
  3. HYDROPAC 383/002000-03-05 → 2000-03-06
    Underwater cable operations in progress until further notice by cableship fu lai vicinity of trackline…
  4. HYDROPAC 363/002000-03-02 → 2000-03-14
    Seismic survey in progress until 31 mar by cableships bergen surveyor and orient explorer towing two mile…
  5. HYDROPAC 215/002000-02-03 → 2000-02-06
    Underwater cable operations in progress until further notice by cableship fu lai vicinity of trackline…
  6. HYDROPAC 534/991999-06-16 → 1999-06-22
    Underwater cable operations in progress until 21 jun by cableship nexus along trackline joining 23-13N…
  7. HYDROPAC 524/991999-06-14 → 1999-06-19
    Seismic survey in progress until 18 jun by M/V orient pearl I towing four 3000 meter long cables within 15…
  8. HYDROPAC 489/991999-06-01 → 1999-06-16
    Cable laying operations 05 thru 15 jun by M/V nexus along trackline joining 23-13N 116-41E, 22-00N 118-12E,…
  9. HYDROPAC 484/991999-05-31 → 1999-06-20
    Cable laying operations 03 thru 19 jun by M/V nexus along trackline joining 23-13N 116-41E, 22-00N 118-12E,…
  10. HYDROPAC 465/991999-05-26 → 1999-05-31
    Cable laying operations 30 may thru 13 jun by M/V nexus along trackline joining 23-13N 116-41E, 22-00N…
  11. HYDROPAC 438/991999-05-20 → 1999-05-26
    Cable laying operations in progress until 25 may by M/V nexus along trackline joining 21-28N 119-55E, 21-24N…
  12. HYDROPAC 434/991999-05-20 → 1999-05-20
    Cable laying operations in progress until 25 may by M/V nexus along trackline joining 22-16N 120-39E, 22-01N…
  13. HYDROPAC 421/991999-05-15 → 1999-05-20
    Cable laying operations 20 thru 31 may by cableship nexus along trackline joining 22-16N 120-39E, 22-01N…
  14. HYDROPAC 353/991999-04-29 → 1999-05-06
    Cable laying operations 04 thru 12 may by cableship nexus along trackline joining 23-13N 116-41E, 22-00N…
  15. HYDROPAC 309/991999-04-16 → 1999-04-30
    Cable laying operations 20 thru 29 apr by cableship nexus along trackline joining 22-16N 120-39E, 22-01N…
  16. HYDROPAC 148/991999-02-23 → 1999-03-07
    Submarine cable operations 251200Z feb to 071200Z mar by cableship vercors within five miles of: a. 17-55.7N…
  17. HYDROPAC 116/991999-02-09 → 1999-02-14
    Cable operations in progress until 13 feb by cableship vercors within two miles of a line between 00-56.8N…
  18. HYDROPAC 106/991999-02-06 → 1999-02-09
    Cable operations 070800Z to 150001Z feb by cableship vercors within two miles of: a. 00-27.8N 104-41.7E b.…
  19. HYDROPAC 79/991999-01-28 → 1999-01-30
    Underwater cable operations in progress until further notice by cableship fresnel in 00-38.2N 103-46.2E
  20. HYDROPAC 70/991999-01-24 → 1999-01-28
    Underwater cable operations 25 jan until further notice by cableship fresnel in 00-25N 104-45E
  21. HYDROPAC 1026/981998-12-29 → 1999-01-05
    Cable laying operations in progress until further notice by cableship vercors along trackline joining 18-05N…
  22. HYDROPAC 907/981998-11-25 → 1999-01-05
    Underwater cable operations 291600Z nov until further notice by M/V fresnel in vicinity of a line joining…

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 China Sea — page 12 · seahazards