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
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99
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01
02
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09
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11
12
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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 2797/22 · Exercises2022-10-06 → 2022-10-11Gunnery exercises 2200Z to 0800Z daily 10 thru 14 oct in area bound by 42-38.50N 132-15.00E, 42-40.00N…
- HYDROPAC 2722/22 · Exercises2022-09-30 → 2022-10-10Gunnery exercises 2200Z to 0800Z daily 04 thru 09 oct in area bound by 42-38.50N 132-15.00E, 42-40.00N…
- HYDROPAC 2624/22 · Missiles2022-09-21 → 2022-09-30Missile operations 2200Z to 0800Z daily 25 thur 29 sep in area bound by 42-38.50N 132-15.00E, 42-40.00N…
- HYDROPAC 2523/22 · Exercises2022-09-12 → 2022-09-23Gunnery exercises 2200Z to 0800Z daily 16 and 18 thru 22 sep in area bound by 42-38.50N 132-15.00E,…
- HYDROPAC 2522/22 · Exercises2022-09-12 → 2022-09-12Gunnery exercises 2200Z to 0800Z daily 16 and 18 thru 22 sep in area bound by 42-38.50N 132-15.00E,…
- HYDROPAC 2473/22 · Exercises2022-09-07 → 2022-09-15Gunnery exercises 2200Z to 0800Z daily 07 thru 14 sep in areas bound by: a. 43-50.00N 138-22.00E, 43-50.00N…
- HYDROPAC 2472/22 · Exercises2022-09-07 → 2022-09-15Gunnery exercises 2200Z to 0800Z daily 07 thru 14 sep in area bound by 46-38.00N 140-15.00E, 46-38.00N…
- HYDROPAC 2450/22 · Exercises2022-09-05 → 2022-09-07Gunnery exercises 2200Z to 0800Z daily 09 thru 11 and 14 sep and 2200Z to 0130Z daily 12 and 13 sep in areas…
- HYDROPAC 2449/22 · Exercises2022-09-05 → 2022-09-07Gunnery exercises 2200Z to 0800Z daily 09 thru 11 and 14 sep and 2200Z to 0130Z daily 12 and 13 sep in areas…
- HYDROPAC 2398/22 · Exercises2022-09-01 → 2022-09-05Gunnery exercises 042200Z to 050800Z sep in area bound by 42-38.50N 132-15.00E, 42-40.00N 131-57.00E,…
- HYDROPAC 2346/22 · Exercises2022-08-26 → 2022-09-07Gunnery exercises 2200Z to 0800Z daily 31 aug thru 06 sep in areas bound by: a. 43-50.00N 138-22.00E,…
- HYDROPAC 2345/22 · Exercises2022-08-26 → 2022-09-07Gunnery exercises 2200Z to 0800Z daily 31 aug thru 06 sep in area bound by 46-38.00N 140-15.00E, 46-38.00N…
- HYDROPAC 2247/22 · Missiles2022-08-15 → 2022-08-20Gunnery and missile operations 2200Z to 0800Z daily 17 thru 30 aug in area bound by 48-37N 140-23E, 46-50N…
- HYDROPAC 2178/22 · Exercises2022-08-09 → 2022-08-21Gunnery exercises 2200Z to 0800Z daily 12 thru 14, 17, 19 thru 21, 24, 26 thru 28 and 2200Z to 0130Z daily…
- HYDROPAC 2177/22 · Exercises2022-08-09 → 2022-08-09Gunnery exercises 2200Z to 0800Z daily 12 thru 14, 17, 19 thru 21, 24, 26 thru 28 and 2200Z to 0130Z daily…
- HYDROPAC 2083/22 · Surveys2022-07-31 → 2023-01-01Survey operations 01 aug thru 31 dec by M/V svetlana and M/V orlan in a. 42-07.40N 130-50.30E
- HYDROPAC 2075/22 · Exercises2022-07-30 → 2022-08-10Gunnery exercises 2200Z to 1000Z daily 03 thru 05 and 07 thru 09 aug in area bound by 42-38.50N 132-15.00E,…
- HYDROPAC 2037/22 · Surveys2022-07-25 → 2022-08-21Survey operations 27 jul thru 20 aug along trackline joining 42-32.00N 131-10.40E, 42-11.70N 131-15.50E,…
- HYDROPAC 2031/22 · Surveys2022-07-25 → 2022-07-25Survey operations 27 jul thru 20 aug in area bound by 45-26.30N 139-13.20E, 47-26.10N 141-53.40E, 42-32.00N…
- HYDROPAC 1940/22 · Exercises2022-07-17 → 2022-07-30Gunnery exercises 2200Z to 1000Z daily 20 thru 22 and 24 thru 29 jul in area bound by 42-40.00N 131-41.00E,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.