Ordnance

Underwater ordnance detonations 25 thru 31 may in areas bound by: a. 38-59.75N 009-09.05E, 39-06.75N…

Tyrrhenian Sea · HYDROLANT 1886/00

What this record establishes

Archived notice · 2000-06-01 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) · MARSARDEGNA 077/00 241645Z MAY 00. Issued 2000-05-24 16:56Z. 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 an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the Tyrrhenian Sea →

issued
2000-05-24 16:56Z
status
Archived notice
authority
MARSARDEGNA 077/00 241645Z MAY 00
issued by
MARSARDEGNA
sea
Tyrrhenian Sea
position
38.933, 9.064
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER ORDNANCE DETONATIONS 25 THRU 31 MAY
   IN AREAS BOUND BY:
   A. 38-59.75N 009-09.05E, 39-06.75N 009-10.80E,
      39-07.60N 009-05.75E, 39-00.55N 009-03.90E.
   B. 38-54.00N 009-08.50E, 38-58.00N 009-08.50E,
      38-58.00N 008-59.20E, 38-54.00N 008-59.20E.
2. CANCEL THIS MSG 01 JUN.

Reading this warning

Unexploded ordnance
Bombs, shells, mines or torpedoes found on the seabed or washed up, and the operations to remove or destroy them.
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.
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 · ordnance operations

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

99
00
05
10
13

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 ordnance operations listed in force · see all

Record snapshot 2026-10-03 15:55Z; source collection times vary.

Ordnance

Ordnance disposal, underwater detonations and unexploded ordnance. All current ordnance 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.