Cable ops

Underwater operations 192200Z to 282200Z feb by cableship global sentinel in vicinity of trackline joining…

Mediterranean Sea - Eastern Basin · HYDROLANT 568/17

What this record establishes

Archived notice · 2017-02-28 23:00Z

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 III 109/17 190002Z FEB 17.. Issued 2017-02-19 00:08Z. 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
Mediterranean Sea - Eastern Basin. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Current notices and reporting history in the Mediterranean Sea - Eastern Basin →

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2017-02-19 22:00Z2017-02-28 22:00Z—216 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued
2017-02-19 00:08Z
status
Archived notice
self-cancels
2017-02-28 23:00Z
authority
NAVAREA III 109/17 190002Z FEB 17.
NAVAREA
NAVAREA III · named as the source of this relay
sea
Mediterranean Sea - Eastern Basin
position
34.164, 33.588
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN MEDITERRANEAN SEA.
DNC 10.
1. UNDERWATER OPERATIONS 192200Z TO 282200Z FEB
   BY CABLESHIP GLOBAL SENTINEL IN VICINITY OF
   TRACKLINE JOINING
   34-33.93N 032-56.82E, 34-33.66N 032-55.86E,
   34-19.62N 033-03.56E, 34-07.22N 033-16.40E,
   33-50.60N 033-56.16E, 34-09.66N 034-20.15E,
   34-09.76N 033-28.40E, 34-18.00N 033-11.10E,
   34-33.93N 032-56.82E.
   ONE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 282300Z FEB 17.

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.
Underwater operations
Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
Date-time group (DTG)
A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
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.
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

164 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
21

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

25 cable & pipeline work listed in force · see all

Record snapshot 2026-09-29 20:38Z; 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.