Ordnance

Underwater ordnance detonations 2100Z to 0900Z commencing daily 28 thru 30 jul in areas bound by: a.…

Philippine Sea · HYDROPAC 1515/10

What this record establishes

Archived notice · 2010-07-26 22:47Z

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) · CTF 70 191403Z JUL 10.. Issued 2010-07-25 09:01Z. 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
Philippine 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 Philippine Sea →

Activity windows · 3 in this warning

opens (UTC)closes (UTC)locallength
2010-07-28 21:00Z2010-07-29 09:00Z—12 h
2010-07-29 21:00Z2010-07-30 09:00Z—12 h
2010-07-30 21:00Z2010-07-31 09:00Z—12 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued
2010-07-25 09:01Z
status
Archived notice
self-cancels
2010-07-31 10:00Z
authority
CTF 70 191403Z JUL 10.
issued by
CTF
sea
Philippine Sea
position
24.847, 131.333
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
ORDNANCE.
1. UNDERWATER ORDNANCE DETONATIONS 2100Z TO 0900Z
   COMMENCING DAILY 28 THRU 30 JUL
   IN AREAS BOUND BY:
   A. 24-23-15N 130-47-52E, 25-26-15N 131-41-52E,
      25-13-15N 132-30-52E, 24-00-16N 132-59-52E,
      24-00-16N 131-22-52E, 24-07-16N 131-10-52E.
   B. 25-41-15N 128-51-53E, 25-48-37N 129-01-53E,
      25-44-15N 129-25-53E, 25-44-15N 130-10-52E,
      25-43-15N 130-35-52E, 25-41-15N 130-44-52E
      24-53-15N 130-03-52E.
2. CANCEL THIS MSG 311000Z 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.
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.
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

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

99
00
05
10
12

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 02:27Z; 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.