Surveys

Underwater operations 15 thru 30 jun by M/V alliance and M/V manning with equipment within 1.5 miles of…

Ligurian Sea · HYDROLANT 2126/00

What this record establishes

Archived notice · 2000-07-01 00:00Z

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) · MARIDPART LA SPEZIA 181/00 131209Z JUN 00. Issued 2000-06-13 17:12Z. 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
Ligurian Sea. The parsed report position is 44.076, 9.770 with a 1.5 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Ligurian Sea →

issued
2000-06-13 17:12Z
status
Archived notice
authority
MARIDPART LA SPEZIA 181/00 131209Z JUN 00
issued by
MARIDPART LA SPEZIA
sea
Ligurian Sea
position
44.076, 9.770 · r 1.5 nm
vessels
M/V ALLIANCE · 61 messagesM/V MANNING · 22 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS 15 THRU 30 JUN BY M/V ALLIANCE
   AND M/V MANNING WITH EQUIPMENT WITHIN 1.5 MILES OF
   44-04-32N 009-46-12E.
2. CANCEL THIS MSG 01 JUL.

Reading this warning

Underwater operations
Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
Within a radius of
A circular area — every position within a stated distance of a point.
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.
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 · survey operations

173 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

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

Worldwide in the collected sources

55 survey operations listed in force · see all

Record snapshot 2026-10-02 09:03Z; source collection times vary.

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

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.