Towing

Geophysical operations in progress until further notice by M/V maersk defender towing 1000 meter long cable…

Tyrrhenian Sea · HYDROLANT 1112/04

What this record establishes

Archived notice · 2004-07-08 13:14Z

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) · MARISICILIA 257/04 020845Z JUL 04.. Issued 2004-07-02 20:25Z. 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
Tyrrhenian 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 Tyrrhenian Sea →

issued
2004-07-02 20:25Z
status
Archived notice
authority
MARISICILIA 257/04 020845Z JUL 04.
issued by
MARISICILIA
sea
Tyrrhenian Sea
position
38.327, 13.148
vessel
M/V MAERSK DEFENDER · 20 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

GEOPHYSICAL OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE
BY M/V MAERSK DEFENDER TOWING 1000 METER LONG CABLE
ALONG TRACKLINE JOINING
38-11.8N 013-19.9E, 38-12.2N 013-20.1E,
38-12.3N 013-20.2E, 38-12.3N 013-20.2E,
38-12.5N 013-20.5E, 38-12.8N 013-21.4E,
38-13.0N 013-21.9E, 38-13.1N 013-22.0E,
38-13.1N 013-22.1E, 38-13.2N 013-22.1E,
38-13.3N 013-22.1E, 38-13.4N 013-22.1E,
38-13.8N 013-21.9E, 38-16.0N 013-20.0E,
38-19.2N 013-14.5E, 38-24.4N 012-52.0E.
ONE MILE BERTH REQUESTED.

Reading this warning

Until further notice
The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
Towed array / streamer
Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
Tow / towing
A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
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.

All warning terms →

Collected reports in this area · tows

5 within 180 nm since 2002 · 1 in the last 12 months · 0 listed in force now

02
05
10
15
20
25
26

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

0 tows listed in force · see all

Record snapshot 2026-10-03 02:06Z; source collection times vary.

Towing

Vessels under tow with long or unlit tow lines. All current tows →

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.