Cable ops

Cable laying operations in progress until 22 mar, alternate 23 thru 31 mar by cableship rene descartes…

Eastern China Sea · HYDROPAC 674/16

What this record establishes

Archived notice · 2016-03-21 23:23Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XI 145/16 082228Z MAR 16.. Issued 2016-03-08 23:08Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Eastern China Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Eastern China Sea →

issued
2016-03-08 23:08Z
status
Archived notice
authority
NAVAREA XI 145/16 082228Z MAR 16.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Eastern China Sea
position
25.464, 126.154
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
PHILIPPINE SEA.
EAST CHINA SEA.
DNC 23.
1. CABLE LAYING OPERATIONS IN PROGRESS UNTIL 22 MAR,
   ALTERNATE 23 THRU 31 MAR
   BY CABLESHIP RENE DESCARTES
   VICINITY OF TRACKLINE JOINING
   25-11.4N 121-25.1E, 25-28.3N 121-28.8E,
   25-13.3N 122-32.4E, 25-35.4N 124-33.7E,
   25-15.0N 125-17.7E, 25-14.1N 125-37.7E,
   24-42.1N 126-09.3E, 25-01.9N 127-27.9E,
   24-51.0N 128-09.5E, 25-34.7N 129-15.1E,
   26-12.0N 129-16.7E, 27-26.1N 130-06.7E.
2. CANCEL HYDROPAC 254/16.
3. CANCEL THIS MSG 01 APR 16.

Reading this warning

DNC (Digital Nautical Chart)
A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Cable operations
A ship is laying, burying or repairing a submarine cable, usually along a stated route.
Track line joining
Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC
The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · cable & pipeline work

22 within 180 nm since 2001 · 0 in the last 12 months · 0 listed in force now

01
05
10
15
18

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

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

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

24 cable & pipeline work listed in force · see all

Record snapshot 2026-10-02 00:52Z; source collection times vary.

Cable ops

Cable laying, pipeline and seismic operations. All current cable & pipeline work →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.