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 646/03 · Exercises2003-04-11 → 2003-04-16Hazardous operations 2300Z to 0200Z commencing daily 14 and 15 apr and 0400Z to 0800Z daily 15 and 16 apr in…
- HYDROPAC 643/03 · Exercises2003-04-11 → 2003-04-16Gunnery exercises 2200Z to 0200Z commencing daily 14 and 15 apr and 0400Z to 0800Z daily 15 and 16 apr in…
- HYDROPAC 611/03 · Restricted2003-04-06 → 2003-04-12Navigation prohibited until 121300Z apr in area bound by 42-43.5N 132-04.0E, 42-48.5N 131-55.0E, 42-51.0N…
- HYDROPAC 573/03 · Restricted2003-03-29 → 2003-04-07Navigation prohibited until 071300Z apr in area bound by 42-43.5N 132-04.0E, 42-46.5N 131-55.0E, 42-51.0N…
- HYDROPAC 565/03 · Other2003-03-28 → 2003-04-30Bombing exercises 0000Z to 0700Z daily 01 thru 04, 07 thru 12, 14 thru 19, 21 thru 26 and 28 thru 30 apr in…
- HYDROPAC 555/03 · Other2003-03-27 → 2003-04-30Bombing exercises 0001Z to 1300Z daily 01 thru 04, 07 thru 12, 14 thru 19, 21 thru 26 and 28 thru 30 apr in…
- HYDROPAC 489/03 · Exercises2003-03-19 → 2003-03-25Gunnery exercises 0001Z to 0300Z and 0500Z to 0800Z daily 24 and 25 mar in areas: a. between 42-31.0N…
- HYDROPAC 474/03 · Ordnance2003-03-17 → 2003-03-23Underwater ordnance detonations 212200Z to 221000Z and 222200Z to 231000Z mar within 0.5 miles of 36-01.4N…
- HYDROPAC 473/03 · Ordnance2003-03-17 → 2003-03-25Underwater ordnance detonations 212200Z to 251000Z mar within 0.5 miles of: a. 36-02.9N 129-29.3E
- HYDROPAC 362/03 · Other2003-02-28 → 2003-03-29Bombing exercises 0001Z to 1300Z daily 03 thru 08, 10 thru 15, 17 thru 22 and 24 thru 29 mar in area bound…
- HYDROPAC 350/03 · Other2003-02-26 → 2003-03-29Bombing exercises 0000Z to 0700Z daily 03 thru 08, 10 thru 15, 17 thru 22 and 24 thru 29 mar in area bound…
- HYDROPAC 326/03 · Exercises2003-02-23 → 2003-02-28Gunnery exercises 280001Z to 280300Z and 280500Z to 280800Z feb in areas: a. between 42-31N 42-40N and…
- USGS-USP000BR06 · Quakes2003-02-19 → 2003-02-2226 km nne of rumoi, japan
- HYDROPAC 181/03 · Other2003-01-31 → 2003-02-28Bombing exercises 0001Z to 1300Z daily 03 thru 08, 10 thru 15, 17 thru 22 and 24 thru 28 feb in area bound…
- HYDROPAC 178/03 · Exercises2003-01-30 → 2003-02-06Hazardous operations 0500Z to 0900Z daily 04 thru 06 feb in area bound by 42-41N 133-02E, 42-15N 132-44E,…
- HYDROPAC 167/03 · Wrecks2003-01-29 → 2004-05-22Dangerous wreck in 42-20.7N 130-48.0E
- HYDROPAC 165/03 · Exercises2003-01-29 → 2003-02-03Hazardous operations 030100Z to 030300Z and 030500Z to 030900Z feb in area bound by 42-20N 132-23E, 42-38N…
- HYDROPAC 160/03 · Other2003-01-29 → 2003-02-28Bombing exercises 0001Z to 0700Z daily 03 thru 08, 10 thru 15, 17 thru 22 and 24 thru 28 feb in area bound…
- HYDROPAC 81/03 · Nav aids2003-01-16 → 2003-01-25Mys brinera light 44-20.6N 135-50.4E unlit
- HYDROPAC 2452/02 · Other2002-12-30 → 2003-01-30Bombing exercises 0001Z to 1300Z daily 02 thru 04, 06 thru 11, 13 thru 18, 20 thru 25 and 27 thru 30 jan in…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.