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 2511/12 · Incidents2012-09-02 → 2012-10-06Distress signal received on 406 mhz from vessel liaodanyu in 40-28-00N 132-09-38E at 012339Z sep
- HYDROPAC 2353/12 · Missiles2012-08-17 → 2012-08-23Hazardous operations 2300Z to 0900Z commencing daily 20 thru 22 aug in area bound by 40-30N 135-56E, 41-28N…
- HYDROPAC 2303/12 · Missiles2012-08-14 → 2012-08-21Hazardous operations 2300Z to 0900Z commencing daily 19 and 20 aug in area bound by 40-57.2N 133-04.7E,…
- HYDROPAC 2217/12 · Incidents2012-08-03 → 2012-08-11Distress signals received on 406 mhz at 030342Z aug in: a. 37-04-37N 126-37-47E
- USGS-USP000JPKV · Quakes2012-07-29 → 2012-08-01108 km nne of svetlaya, russia
- HYDROPAC 1838/12 · Exercises2012-06-28 → 2012-07-03Gunnery exercises 2200Z to 1700Z daily 30 jun thru 02 jul in area bound by 43-32N 137-39E, 43-57N 137-12E,…
- HYDROPAC 1791/12 · Exercises2012-06-25 → 2012-07-03Gunnery exercises 2200Z to 1700Z commencing daily 30 jun thru 02 jul in area bound by 44-17.0N 137-03.0E,…
- HYDROPAC 1790/12 · Exercises2012-06-25 → 2012-07-03Gunnery exercises 2200Z to 1700Z commencing daily 30 jun thru 02 jul in area bound by 44-30.0N 138-07.0E,…
- HYDROPAC 1755/12 · Exercises2012-06-21 → 2012-06-27Gunnery exercises 0100Z to 1700Z daily 26 and 27 jun in area bound by 43-32N 137-39E, 43-57N 137-12E, 44-22N…
- HYDROPAC 1754/12 · Exercises2012-06-21 → 2012-06-25Gunnery exercises 0100Z to 1700Z daily 26 and 27 jun in area bound by 44-30.0N 138-07.0E, 44-56.0N…
- HYDROPAC 1752/12 · Exercises2012-06-21 → 2012-06-25Gunnery exercises 0100Z to 1700Z daily 26 and 27 jun in area bound by 44-17.0N 137-03.0E, 44-41.0N…
- HYDROPAC 1201/12 · Exercises2012-04-26 → 2012-05-05Gunnery exercises 2200Z to 0900Z commencing daily 01 thru 04 may in area bound by 42-15N 131-00E, 42-30N…
- HYDROPAC 991/12 · Exercises2012-04-07 → 2012-04-08Hazardous operations 2200Z to 0900Z commencing daily 11 thru 14 apr in area bound by 42-41.0N 134-40.0E,…
- HYDROPAC 982/12 · Missiles2012-04-06 → 2012-04-24Hazardous operations 2200Z to 0900Z commencing daily 11 thru 14 apr in area bound by 42-00.0N 131-35.0E,…
- HYDROPAC 248/12 · Incidents2012-01-30 → 2012-02-11Man overboard from F/V laser vicinity 37-58N 132-26E at 291430Z jan
- HYDROPAC 3371/11 · Missiles2011-12-03 → 2011-12-13Hazardous operations 2200Z to 0100Z commencing daily 08 thru 12 dec and 0300Z to 0600Z daily 09 thru 13 dec…
- HYDROPAC 2644/11 · Missiles2011-09-20 → 2011-09-27Hazardous operations 2300Z to 0600Z commencing daily 25 and 26 sep in area bound by 49-08.0N 141-03.0E,…
- HYDROPAC 2419/11 · Surveys2011-08-27 → 2011-10-29Underwater operations 01 sep thru 28 oct in area bound by 51-28-22N 140-52-00E, 51-28-51N 140-50-49E,…
- HYDROPAC 2352/11 · Missiles2011-08-21 → 2011-08-27Hazardous operations 2100Z to 0600Z commencing daily 25 and 26 aug in area bound by 49-08.0N 141-03.0E,…
- HYDROPAC 2351/11 · Exercises2011-08-21 → 2011-08-27Gunnery exercises 2100Z to 0600Z commencing daily 25 and 26 aug in area bound by 48-56N 140-38E, 49-02N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.