Underwater ordnance detonations 150001Z to 151100Z jun within 18 miles of 33-00N 123-20E
Eastern China Sea · HYDROPAC 890/01
What this record establishes
Archived notice · 2001-06-15 12:00Z
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) · NRL WASHINGTON D.C. 041818Z MAY 01. Issued 2001-06-11 16:39Z. 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 33.000, 123.333 with a 18.0 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 Eastern China Sea →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2001-06-15 00:01Z | 2001-06-15 11:00Z | — | 10 h 59 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2001-06-11 16:39Z
- status
- Archived notice
- self-cancels
- 2001-06-15 12:00Z
- authority
- NRL WASHINGTON D.C. 041818Z MAY 01
- issued by
- NRL WASHINGTON D.C
- sea
- Eastern China Sea
- position
- 33.000, 123.333 · r 18.0 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 150001Z TO 151100Z JUN WITHIN 18 MILES OF 33-00N 123-20E. 2. CANCEL THIS MSG 151200Z JUN.
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.
Collected reports in this area · ordnance operations
17 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 1300Z daily: a. 07 may in area bound by 26-07N 122-35E, 25-45N…2003-05-06
- Underwater ordnance detonations 050200Z to 050700Z oct: a. vicinity of trackline joining 35-50.0N 124-33.3E,…2002-10-04
- Underwater ordnance detonations 071000Z to 071400Z oct vicinity of trackline joining 35-44.7N 124-33.0E,…2002-10-04
- Underwater ordnance detonations 052000Z to 060100Z oct: a. vicinity of trackline joining 35-50.0N 124-33.3E,…2002-10-03
- Underwater ordnance detonations 040001Z to 040500Z oct: a. vicinity of trackline joining 34-41N 124-44E,…2002-09-30
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 2026-10-03 07:51Z; 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.