Underwater ordnance detonations 0001Z to 1300Z daily: a. 07 may in area bound by 26-07N 122-35E, 25-45N…
Eastern China Sea · HYDROPAC 785/03
What this record establishes
Archived notice · 2003-05-07 09:20Z
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 060001Z MAY 03. Issued 2003-05-06 08:40Z. 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
- Underwater ordnance detonations 0001Z to 1300Z daily 07 thru 12 may in areas bound by: a. 27-23N 124-44E,…cancelled by this notice
- Cancel HYDROPAC 791/03, false alertlater cancellation notice
Current notices and reporting history in the Eastern China Sea →
- issued
- 2003-05-06 08:40Z
- status
- Archived notice
- self-cancels
- 2003-05-12 14:00Z
- authority
- CTG 72.2 060001Z MAY 03
- issued by
- CTG
- sea
- Eastern China Sea
- position
- 33.042, 124.824
- 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 1300Z DAILY:
A. 07 MAY 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 122-22E.
B. 09 MAY IN AREA BOUND BY
27-23N 124-44E, 27-02N 125-08E,
26-37N 124-40E, 26-58N 124-16E.
C. 10 MAY IN AREA BOUND BY
33-25N 124-48E, 33-00N 125-18E,
32-39N 124-51E, 33-05N 124-21E.
D. 11 MAY IN AREA BOUND BY
29-57N 126-47E, 29-44N 127-19E,
29-12N 127-00E, 29-24N 126-29E.
E. 12 MAY 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.
F. ALTERNATE 12 MAY IN AREA BOUND BY
33-53N 128-09E, 33-53N 128-17E, 33-34N 128-30E,
33-13N 127-47E, 33-36N 127-31E.
2. CANCEL HYDROPAC 778/03.
3. CANCEL THIS MSG 121400Z MAY.
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.
- 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.
Collected reports in this area · ordnance operations
23 within 180 nm since 2000 · 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 192200Z to 230830Z mar in area bound by 34-34.33N 125-32.18E, 34-13.92N…2012-03-20
- Underwater ordnance detonations 0001Z to 2359Z daily 17 thru 20 mar in area bound by 34-31.9N 127-50.7E,…2009-03-14
- Underwater ordnance detonations: a. 150900Z to 171459Z nov vicinity of trackline joining 32-04N 127-15E,…2002-11-13
- Underwater ordnance detonations 111100Z to 111500Z oct vicinity of trackline joining 35-41.7N 124-53.5E,…2002-10-08
- Underwater ordnance detonations 060700Z to 070300Z oct: a. in areas between: 1. 35-15.0N 35-20.0N and…2002-10-04
- Underwater ordnance detonations 050200Z to 050700Z oct: a. vicinity of trackline joining 35-50.0N 124-33.3E,…2002-10-04
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 00:26Z; 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.