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
93
97
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99
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01
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06
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09
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11
12
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14
15
16
17
18
19
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26
By month (all years)
J
F
M
A
M
J
J
A
S
O
N
D
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 1931/22 · Exercises2022-07-15 → 2022-07-29Gunnery exercises 191400Z to 291400Z jul in area bound by 41-31.00N 131-41.00E, 42-15.00N 131-41.00E,…
- HYDROPAC 1917/22 · Exercises2022-07-14 → 2022-07-15Gunnery exercise 191400Z to 291400Z jul in area bound by 42-15.00N 131-41.00E, 42-15.00N 131-41.00E,…
- USGS-US6000HZAS · Quakes2022-07-02 → 2022-07-0558 km sse of shebunino, russia
- HYDROPAC 1780/22 · Exercises2022-06-29 → 2022-07-20Gunnery exercises 2200Z to 1000Z daily 03 thru 08, 10 thru 15, and 17 thru 19 jul in area bound by 42-40.00N…
- HYDROPAC 1725/22 · Exercises2022-06-23 → 2022-07-02Gunnery exercises 281400Z jun to 021400Z jul in area bound by 41-31.00N 131-41.00E, 42-15.00N 131-41.00E,…
- HYDROPAC 1634/22 · Exercises2022-06-13 → 2022-06-30Gunnery exercises 2200Z to 1000Z daily 17, 19 thru 24, and 26 thru 29 jun in area bound by 42-40.0N…
- HYDROPAC 1490/22 · Missiles2022-05-28 → 2022-06-15Missile and gunnery operations 2200Z to 0800Z daily 31 may thru 14 jun in area bound by 48-37.00N…
- HYDROPAC 1382/22 · Restricted2022-05-19 → 2022-05-28Navigation prohibited 231400Z to 281400Z may in area bound by 42-08.00N 131-41.00E, 42-40.00N 131-41.00E,…
- HYDROPAC 1362/22 · Exercises2022-05-17 → 2022-05-23Gunnery exercises 221200Z to 232000Z may in area bound by 47-00.00N 141-14.00E, 47-00.00N 141-40.00E,…
- HYDROPAC 1328/22 · Exercises2022-05-13 → 2022-05-31Gunnery exercises 2200Z to 1000Z daily 17 thru 20, 22 thru 27, 29 and 30 may in area bound by 42-38.50N…
- HYDROPAC 1303/22 · Exercises2022-05-11 → 2022-05-17Gunnery operations 2200Z to 1000Z daily 15 and 16 may in area bound by 42-40.00N 131-41.00E, 42-40.00N…
- HYDROPAC 1065/22 · Missiles2022-04-18 → 2022-04-30Missile operations 2100Z to 1000Z daily 22 thru 29 apr in area bound by 41-40N 131-41E, 42-15N 131-41E,…
- HYDROPAC 1019/22 · Exercises2022-04-13 → 2022-04-30Gunnery operations 2200Z to 1000Z daily 17 thru 29 apr in area bound by 42-40.0N 131-41.0E, 42-40.0N…
- HYDROPAC 860/22 · Missiles2022-03-31 → 2022-04-16Missile operations 2200Z to 1000Z daily 04 thru 08 and 10 thru 15 apr in area bound by 42-23.5N 131-01.7E,…
- HYDROPAC 831/22 · Exercises2022-03-29 → 2022-03-31Gunnery exercise 291400Z to 311400Z mar in area bound by 42-20N 131-00E, 42-30N 131-00E, 42-30N 131-30E,…
- HYDROPAC 781/22 · Exercises2022-03-25 → 2022-04-05Gunnery exercises 2100Z to 1000Z daily 26, 30 mar thru 01 apr, 03 and 04 apr in area bound by 42-40.0N…
- HYDROPAC 720/22 · Missiles2022-03-19 → 2022-04-01Missile operations 2200Z to 0800Z daily, 23 thru 31 mar in area bound by 42-52.5N 132-08.3E, 42-52.3N…
- HYDROPAC 689/22 · Missiles2022-03-16 → 2022-04-01Missile operations 2200Z to 0800Z daily, 18, 20 thru 25 and 27 thru 31 mar in area bound by 42-23.5N…
- HYDROPAC 496/22 · Exercises2022-02-25 → 2022-03-15Gunnery exercises 2200Z to 0900Z daily 01 thru 04 and 08 thru 14 mar in area bound by 42-40.0N 131-41.0E,…
- HYDROPAC 368/22 · Exercises2022-02-11 → 2022-02-28Gunnery exercises 2200Z to 0900Z daily 15 thru 27 feb in area bound by 42-40.0N 131-41.0E, 42-40.0N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.