Ordnance

Underwater ordnance detonations 0001Z to 1000Z daily: a. 15 jul within 25 miles of 29-30N 126-45E

Eastern China Sea · HYDROPAC 1119/01

What this record establishes

Archived notice · 2001-07-17 11:00Z

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) · COMSEVENTHFLT 150510Z JUL 01. Issued 2001-07-15 09:46Z. 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 parsed report position is 31.283, 125.859. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Eastern China Sea →

issued
2001-07-15 09:46Z
status
Archived notice
self-cancels
2001-07-17 11:00Z
authority
COMSEVENTHFLT 150510Z JUL 01
issued by
COMSEVENTHFLT
sea
Eastern China Sea
position
31.283, 125.859
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 1000Z DAILY:
   A. 15 JUL WITHIN 25 MILES OF 29-30N 126-45E.
   B. 16 JUL WITHIN 25 MILES OF 33-00N 125-00E.
   C. 17 JUL WITHIN 25 MILES OF 28-00N 125-30E AND NORTH
      OF TRACKLINE BETWEEN 28-16N 126-05E AND 27-44N 124-55E.
2. CANCEL HYDROPAC 1079/01.
3. CANCEL THIS MSG 171100Z JUL.

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.
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.
Track line joining
Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC
The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
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

14 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

Worldwide in the collected sources

0 ordnance operations listed in force · see all

Record snapshot 2026-09-29 00:47Z; 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.