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
98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
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 1053/18 · Exercises2018-03-17 → 2018-03-24Gunnery exercises 2100Z to 1000Z commencing daily 18 thru 23 mar in area bound by 42-20N 132-23E, 42-39N…
- HYDROPAC 1052/18 · Exercises2018-03-17 → 2018-03-24Gunnery exercises 2100Z to 1000Z commencing daily 18 thru 23 mar in area bound by 42-44-00N 131-35-00E,…
- HYDROPAC 1051/18 · Exercises2018-03-17 → 2018-03-17Gunnery exercises in progress until 171000Z mar in area bound by 42-20N 132-23E, 42-39N 132-23E, 42-39N…
- HYDROPAC 1050/18 · Exercises2018-03-16 → 2018-03-17Gunnery exercises in progress until 171000Z mar in area bound by 42-44-00N 131-35-00E, 42-56-42N 131-31-36E,…
- HYDROPAC 1049/18 · Other2018-03-16 → 2018-03-31Bombing exercises 2300Z to 1500Z commencing daily 18 thru 23 and 25 thru 30 mar in area bound by 42-46-50N…
- HYDROPAC 1018/18 · Missiles2018-03-15 → 2018-03-24Missile operations 2300Z to 1000Z commencing daily 18 thru 23 mar in area bound by 42-15.0N 131-41.0E,…
- HYDROPAC 997/18 · Missiles2018-03-14 → 2018-03-15Missile operations 2300Z to 1000Z commencing daily 18 thru 23 mar in area bound by 42-15.0N 131-41.0E,…
- HYDROPAC 895/18 · Missiles2018-03-07 → 2018-03-17Missile operations 2300Z to 1000Z commencing daily 11 thru 16 mar in area bound by 42-15.0N 131-41.0E,…
- HYDROPAC 807/18 · Missiles2018-03-01 → 2018-03-07Missile operations 2300Z to 1000Z commencing daily 04 thru 06 mar in area bound by 42-15.0N 131-41.0E,…
- HYDROPAC 729/18 · Debris2018-02-22 → 2018-02-25Object adrift in area within 20 miles of 42-22N 133-40E
- HYDROPAC 714/18 · Missiles2018-02-21 → 2018-03-03Missile operations 2300Z to 1000Z commencing daily 25 feb thru 02 mar in area bound by 42-15.0N 131-41.0E,…
- HYDROPAC 661/18 · Incidents2018-02-18 → 2018-03-09Distress signals received on 406 mhz at 180622Z feb in: a. 32-33-50N 121-02-34E
- HYDROPAC 612/18 · Missiles2018-02-14 → 2018-02-22Missile operations 2300Z to 1000Z commencing daily 18 thru 21 feb in area bound by 42-15.0N 131-41.0E,…
- HYDROPAC 519/18 · Missiles2018-02-07 → 2018-02-16Missile operations 2300Z to 1000Z commencing daily 11 thru 16 feb in area bound by 42-15.0N 131-41.0E,…
- HYDROPAC 422/18 · Missiles2018-01-31 → 2018-02-09Missile operations 2300Z to 1000Z commencing daily 04 thru 08 feb in area bound by 42-15.0N 131-41.0E,…
- HYDROPAC 405/18 · Incidents2018-01-30 → 2018-02-16Distress signal received on 406 mhz from F/V vostok in 40-34.6N 132-05.6E at 272339Z jan
- HYDROPAC 339/18 · Missiles2018-01-25 → 2018-02-03Missile operations 282300Z jan to 031000Z feb in area bound by 42-15.0N 131-41.0E, 42-40.0N 131-41.0E,…
- HYDROPAC 330/18 · Incidents2018-01-25 → 2018-01-30Distress signal received on 406 mhz from F/V vostok in 41-49.0N 131-36.3E at 250045Z jan
- HYDROPAC 328/18 · Incidents2018-01-24 → 2018-01-25Distress signal received from F/V vostok in 41-53.6N 131-02.5E at 241832Z jan
- HYDROPAC 207/18 · Missiles2018-01-15 → 2018-01-27Missile operations 2300Z to 1000Z commencing daily 18, 19, and 21 thru 26 jan in area bounded by 42-15.0N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.