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 4348/18 · Missiles2018-12-06 → 2018-12-17Missile and gunnery exercises 110001Z to 162359Z dec in area bound by 41-48-00N 132-05-00E, 41-58-00N…
- HYDROPAC 4315/18 · Other2018-12-04 → 2018-12-07Numerous fishing vessels reported in: a. 46-30N 138-48E
- HYDROPAC 4261/18 · Incidents2018-11-29 → 2018-12-14Distress signal received on 406 mhz in 34-19-09N 126-46-08E at 292100Z nov
- HYDROPAC 4254/18 · Exercises2018-11-29 → 2018-12-06Gunnery exercises 0001Z to 0800Z daily 04 thru 06 dec in area within five miles of 45-32.0N 141-18.5E
- HYDROPAC 4233/18 · Missiles2018-11-27 → 2018-12-11Missile and gunnery exercises 010001Z to 102359Z dec in area bound by 41-48-00N 132-05-00E, 41-58-00N…
- HYDROPAC 4194/18 · Incidents2018-11-22 → 2018-12-07Distress signal received on 406 mhz in 35-04-48N 129-00-03E at 221900Z nov
- HYDROPAC 4180/18 · Incidents2018-11-21 → 2018-11-21Distress signals received on 406 mhz at 210913Z nov in: a. 33-13-12N 121-55-08E
- HYDROPAC 4121/18 · Missiles2018-11-15 → 2018-12-01Missile operations 190001Z to 302359Z nov in area bound by 41-48-00N 132-05-00E, 41-58-00N 132-02-00E,…
- HYDROPAC 4021/18 · Exercises2018-11-07 → 2018-11-14Gunnery exercises 0001Z to 0800Z daily 12 thru 14 nov in area within five miles of 45-32.0N 141-18.5E
- HYDROPAC 4013/18 · Incidents2018-11-06 → 2018-11-23Vessel, two persons on board, requesting assistance in vicinity ascold island (42-45N 132-20E) at 060945Z nov
- HYDROPAC 3994/18 · Derelicts2018-11-05 → 2018-11-08Derelict F/V partially submerged and adrift in vicinity 42-55N 134-56E at 050310Z nov
- HYDROPAC 3922/18 · Derelicts2018-10-29 → 2018-11-01Derelict eight meter vessel adrift in 40-36.75N 129-55.25E at 290800Z oct
- HYDROPAC 3852/18 · Derelicts2018-10-23 → 2018-10-26Derelict ten meter F/V adrift in 42-56-53N 134-09-58E at 230630Z oct
- HYDROPAC 3825/18 · Derelicts2018-10-21 → 2018-10-24Derelict F/V adrift at 202330Z oct in: a. 41-52.0N 132-40.0E
- HYDROPAC 3785/18 · Derelicts2018-10-18 → 2018-10-21Derelict F/V, black hull, partially submerged and adrift in 43-26N 137-47E at 180530Z oct
- HYDROPAC 3780/18 · Derelicts2018-10-17 → 2018-10-20Two derelict f/v's partially submerged and adrift at 170600Z oct in: a. 43-35N 137-50E
- HYDROPAC 3778/18 · Derelicts2018-10-17 → 2018-10-20Derelict F/V adrift in vicinity 40-51N 132-35E at 170200Z oct
- HYDROPAC 3706/18 · Exercises2018-10-11 → 2018-10-23Hazardous operations 162100Z to 232100Z oct in area bound by 42-49-00N 134-14-00E, 42-57-00N 134-14-00E,…
- HYDROPAC 3632/18 · Derelicts2018-10-04 → 2018-10-07Derelict F/V, partially submerged and adrift in 41-13.02N 135-49.58E at 040705Z oct
- HYDROPAC 3620/18 · Derelicts2018-10-03 → 2018-10-06Derelict 20 meter F/V adrift in vicinity 43-21.5N 135-36.7E at 030740Z 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.