Underwater ordnance detonations 0001Z to 0400Z daily 11 and 12 nov vicinity 13-23N 144-35E
Philippine Sea · HYDROPAC 3165/11
What this record establishes
Archived notice · 2011-11-12 05:00Z
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) · COMCOGARD SECTOR GUAM 616/11 100217Z NOV 11.. Issued 2011-11-10 04:45Z. 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 13.383, 144.583. 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 →
- issued
- 2011-11-10 04:45Z
- status
- Archived notice
- self-cancels
- 2011-11-12 05:00Z
- authority
- COMCOGARD SECTOR GUAM 616/11 100217Z NOV 11.
- issued by
- COMCOGARD SECTOR GUAM
- sea
- Philippine Sea
- position
- 13.383, 144.583
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH PACIFIC. MARIANA ISLANDS. ORDNANCE. 1. UNDERWATER ORDNANCE DETONATIONS 0001Z TO 0400Z DAILY 11 AND 12 NOV VICINITY 13-23N 144-35E. 2. CANCEL THIS MSG 120500Z 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.
- 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.
Collected reports in this area · ordnance operations
19 within 180 nm since 1999 · 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 detonation 2300Z to 0600Z daily 23 and 24 apr in 13-16.20N 144-22.80E2024-04-18
- Underwater ordnance detonation 302200Z to 310600Z mar in area within three miles of 13-35.97N 144-55.64E2023-03-23
- Underwater ordnance detonation 162200Z to 170300Z mar in area within three miles of 13-35.00N 144-55.00E2023-03-16
- Underwater ordnance detonations 210100Z to 210800Z sep vicinity 13-27.6N 144-38.5E2009-09-20
- Underwater ordnance detonations 100300Z to 100700Z apr vicinity 13-27-42N 144-38-30E2007-04-05
- Ordnance operations 0300Z to 0700Z daily 27 and 28 feb vicinity 13-27-24N 144-38-19E2007-02-22
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
- Uscg remote communication facility guam 13-29.00N 144-50.00E broadcast and communication services unreliableNav aids · 15.8 nm
- Guam hf NAVTEX station, V, 13-29.0N 144-50.0E, off airNav aids · 15.8 nm
- Hazardous operations 252000Z to 261000Z sep in area bound by 13-32.00N 144-04.00E, 13-32.00N 144-27.00E,…Exercises · 19.5 nm
- Due to tropical storm bavi: 1. the following port(s) are closed: a. rota island 14-08.35N 145-08.09EStorms · 58 nm
- Hazardous operations 2200Z to 1000Z daily 28 thru 30 sep in area bound by 12-40.00N 144-45.00E, 11-00.00N…Exercises · 106.8 nm
- Hazardous operations 292300Z to 300900Z sep and 302300Z sep to 010700Z oct in area bound by 12-40.00N…Exercises · 106.8 nm
Worldwide in the collected sources
0 ordnance operations listed in force · see all
Record snapshot 2026-10-02 10:36Z; 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.