Cable ops

Cable operations 10 thru 17 jan, alternate 18 thru 22 jan by cableship kddi ocean link in area bound by…

Eastern China Sea · HYDROPAC 112/20

What this record establishes

Archived notice · 2020-01-15 12:35Z

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 8/20 100546Z JAN 20.. Issued 2020-01-10 05:49Z. 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 an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Eastern China Sea →

issued
2020-01-10 05:49Z
status
Archived notice
authority
NAVAREA XI 8/20 100546Z JAN 20.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Eastern China Sea
position
30.936, 122.938
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EAST CHINA SEA.
CHINA.
DNC 23.
1. CABLE OPERATIONS 10 THRU 17 JAN, ALTERNATE
   18 THRU 22 JAN BY CABLESHIP KDDI OCEAN LINK
   IN AREA BOUND BY
   30-55.8N 122-35.2E, 30-58.8N 122-49.5E,
   30-55.0N 123-09.0E, 30-56.4N 123-17.7E,
   30-55.0N 123-18.0E, 30-53.7N 123-11.2E,
   30-57.0N 122-49.6E, 30-54.7N 122-35.5E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 23 JAN 20.

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.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
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.
Wide berth requested
Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
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

121 within 180 nm since 1998 · 0 in the last 12 months · 0 listed in force now

98
00
05
10
15
20
23

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

Worldwide in the collected sources

24 cable & pipeline work listed in force · see all

Record snapshot 2026-10-02 13:46Z; 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.