Japan Sea
IHO sea area 52 · 126° to 142° E, 33° to 52° N
- in force
- 0
- last 12 months
- 16
- archive messages
- 1,301
- categories
- 15
What the archive shows
1,301 messages are recorded since 1993-06-02 for the Japan Sea. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.
Exercises accounts for 635 of 1,301 recorded messages (49%), the largest category group in this selection.
The NGA historical archive froze in 2024-05; live collection began 2026-08-17. Counts around that gap are incomplete, and changes in reporting volume do not establish changes in incident frequency.
In force now · 0
Nothing in force in this sea right now.
By year
By month (all years)
By category · available archive
| Exercises | 635 | 49% |
| Missiles | 190 | 15% |
| Other | 105 | 8% |
| Incidents | 103 | 8% |
| Quakes | 87 | 7% |
| Derelicts | 51 | 4% |
| Surveys | 34 | 3% |
| Ordnance | 29 | 2% |
| Cable ops | 24 | 2% |
| Nav aids | 17 | 1% |
| Restricted | 15 | 1% |
| Wrecks | 5 | 0% |
| Debris | 3 | 0% |
| Containers | 2 | 0% |
| Volcanic | 1 | 0% |
Archive · 1,301 cancelled
- HYDROPAC 118/05 · Wrecks2005-01-20 → 2005-03-10M/V pioneer naya sank in 40-01N 131-17E
- HYDROPAC 1983/04 · Exercises2004-12-29 → 2005-01-31Gunnery exercises 0001Z to 1300Z daily 03 thru 08, 10 thru 15, 17 thru 22, 24 thru 29 and 31 jan 05 in area…
- USGS-USP000DANQ · Quakes2004-12-14 → 2004-12-1723 km nne of rumoi, japan
- USGS-USP000D7X5 · Quakes2004-11-08 → 2004-11-116 km s of nagaoka, japan
- HYDROPAC 1744/04 · Other2004-11-05 → 2004-12-20M/V west reported sunk in 43-36N 136-15E at 021124Z nov
- HYDROPAC 1743/04 · Other2004-11-05 → 2004-12-20M/V arosa reported sunk with seven men overboard in 42-54N 134-55E at 012340Z nov
- HYDROPAC 1694/04 · Exercises2004-10-28 → 2004-11-30Gunnery exercises 0001Z to 1300Z daily 01 thru 06, 08 thru 13, 15 thru 20, 22 thru 27, 29 and 30 nov in area…
- HYDROPAC 1689/04 · Exercises2004-10-27 → 2004-10-28Gunnery exercises 0800Z to 2100Z daily 01 thru 06, 08 thru 13, 15 thru 20, 22 thru 27, 29 and 30 nov in area…
- USGS-USP000D75K · Quakes2004-10-27 → 2004-10-307 km ese of ojiya, japan
- USGS-USP000D70D · Quakes2004-10-24 → 2004-10-278 km w of ojiya, japan
- USGS-USP000D6W8 · Quakes2004-10-23 → 2004-10-2611 km se of kashiwazaki, japan
- USGS-USP000D6W7 · Quakes2004-10-23 → 2004-10-2615 km nw of t?kamachi, japan
- USGS-USP000D6W3 · Quakes2004-10-23 → 2004-10-266 km nnw of t?kamachi, japan
- USGS-USP000D6VU · Quakes2004-10-23 → 2004-10-262 km nne of ojiya, japan
- USGS-USP000D6VQ · Quakes2004-10-23 → 2004-10-2615 km sse of kashiwazaki, japan
- USGS-USP000D6VN · Quakes2004-10-23 → 2004-10-262 km ne of ojiya, japan
- USGS-USP000D6VM · Quakes2004-10-23 → 2004-10-266 km ese of ojiya, japan
- USGS-USP000D6VK · Quakes2004-10-23 → 2004-10-268 km ssw of ojiya, japan
- HYDROPAC 1662/04 · Surveys2004-10-21 → 2004-11-11Survey operations in progress until 10 nov by M/V valerian uryvayev in areas bound by: a. 51-29-29N…
- HYDROPAC 1601/04 · Incidents2004-10-08 → 2004-11-24Distress signal received from F/V kurily in 39-35N 132-00E at 081717Z oct
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.