Ordnance

Underwater ordnance detonations 0001Z to 1200Z daily: a. 15 sep in area between 28-10N 27-30N and 125-07E…

Eastern China Sea · HYDROPAC 1573/03

What this record establishes

Archived notice · 2003-09-14 09:22Z

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) · CTG 72.2 050100Z SEP 03. Issued 2003-09-13 06:10Z. 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
2003-09-13 06:10Z
status
Archived notice
self-cancels
2003-09-17 13:00Z
authority
CTG 72.2 050100Z SEP 03
issued by
CTG
sea
Eastern China Sea
position
25.900, 122.530
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER ORDNANCE DETONATIONS 0001Z TO 1200Z DAILY:
   A. 15 SEP IN AREA BETWEEN
      28-10N 27-30N AND 125-07E 125-58E.
   B. 16 SEP IN AREA BOUND BY
      26-07N 122-35E, 25-45N 123-02E,
      25-41N 122-51E, 25-53N 122-34E,
      25-49N 122-21E, 25-55N 122-11E.
   C. 17 SEP IN AREA BOUND BY
      22-38N 119-06E, 22-24N 119-35E,
      22-09N 119-01E, 22-15N 118-51E,
      22-25N 119-09E, 22-32N 118-57E.
2. CANCEL THIS MSG 171300Z SEP.

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.
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.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.
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.

All warning terms →

Collected reports in this area · ordnance operations

10 within 180 nm since 2000 · 0 in the last 12 months · 0 listed in force now

00
03

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 2026-10-02 01:22Z; 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.