Ordnance

Underwater ordnance detonations 162300Z to 170800Z nov within 50 miles of 21-00.5N 128-00.0E

Philippine Sea · HYDROPAC 1845/01

What this record establishes

Archived notice · 2001-11-17 09:00Z

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) · EODMU FIVE DET THREE FIVE 150501Z NOV 01. Issued 2001-11-15 15:24Z. 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 parsed report position is 21.008, 128.000 with a 50.0 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 Philippine Sea →

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2001-11-16 23:00Z	2001-11-17 08:00Z	—	9 h

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

issued: 2001-11-15 15:24Z
status: Archived notice
self-cancels: 2001-11-17 09:00Z
authority: EODMU FIVE DET THREE FIVE 150501Z NOV 01
issued by: EODMU FIVE DET THREE FIVE
sea: Philippine Sea
position: 21.008, 128.000 · r 50.0 nm
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER ORDNANCE DETONATIONS 162300Z TO 170800Z NOV
   WITHIN 50 MILES OF 21-00.5N 128-00.0E.
2. CANCEL THIS MSG 170900Z NOV.

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.
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.
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 · ordnance operations

2 within 180 nm since 2001 · 0 in the last 12 months · 0 listed in force now

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.

Underwater ordnance detonations 2300Z to 0600Z commencing daily 24 and 25 nov vicinity 22-56.0N 127-14.1E2016-11-25

Month of issue in the collected archive

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 02:24Z; 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.