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
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05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
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23
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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 1333/06 · Exercises2006-07-16 → 2006-07-22Gunnery exercises 2300Z to 0100Z commencing daily 20 and 21 jul and 0400Z to 0600Z daily 21 and 22 jul in…
- HYDROPAC 1225/06 · Exercises2006-06-28 → 2006-07-31Gunnery exercises 0001Z to 1300Z daily 03 thru 07, 10 thru 14, 18 thru 21, 24 thru 28 and 31 jul in area…
- HYDROPAC 1183/06 · Exercises2006-06-25 → 2006-07-31Gunnery exercises 2200Z to 1500Z commencing daily 02 thru 06, 09 thru 13, 17 thru 20, 23 thru 27 and 30 jul…
- HYDROPAC 1096/06 · Exercises2006-06-14 → 2006-06-17Gunnery exercises 2300Z to 0100Z commencing daily 15 and 16 jun, 0400Z to 0600Z 16 and 17 jun in area bound…
- HYDROPAC 1085/06 · Exercises2006-06-13 → 2006-06-24Gunnery exercises 2300Z to 0100Z commencing daily 18 thru 23 jun and 0400Z to 0600Z daily 19 thru 24 jun in…
- HYDROPAC 974/06 · Exercises2006-05-27 → 2006-06-30Gunnery exercises 0001Z to 1300Z daily 01, 02, 05, 07 thru 09, 12 thru 16, 19 thru 23, and 26 thru 30 jun in…
- HYDROPAC 970/06 · Exercises2006-05-27 → 2006-06-30Gunnery exercises 0001Z to 1300Z daily 01, 02, 05 thru 09, 12 thru 16, 19 thru 23, and 26 thru 30 jun in…
- HYDROPAC 795/06 · Exercises2006-05-02 → 2006-05-07Hazardous operations 2100Z to 0200Z commencing daily 05 and 06 may and 0400Z to 0700Z daily 06 and 07 may in…
- HYDROPAC 752/06 · Exercises2006-04-25 → 2006-05-31Gunnery exercises 0001Z to 1300Z daily 01 thru 04, 08 thru 12, 15 thru 19, 22 thru 26 and 29 thru 31 may in…
- HYDROPAC 742/06 · Exercises2006-04-24 → 2006-05-31Gunnery exercises 0001Z to 1300Z daily 01 thru 05, 08 thru 12, 15 thru 19, 22 thru 26, and 29 thru 31 may in…
- HYDROPAC 725/06 · Exercises2006-04-21 → 2006-04-26Hazardous operations 252300Z to 260400Z apr in area bound by 42-42.0N 133-03.8E, 42-37.5N 133-08.0E,…
- HYDROPAC 718/06 · Exercises2006-04-20 → 2006-04-26Hazardous operations 252300Z to 260400Z apr in area bound by 42-42.0N 133-03.8E, 42-37.5N 133-08.0E,…
- HYDROPAC 697/06 · Exercises2006-04-17 → 2006-04-21Hazardous operations 2100Z to 0100Z commencing daily 19 and 20 apr in area bound by 41-49.0N 132-13.0E,…
- HYDROPAC 574/06 · Derelicts2006-04-03 → 2006-04-10Derelict 137 meter barge adrift vicinity 41-35N 134-10E
- HYDROPAC 510/06 · Exercises2006-03-25 → 2006-04-28Gunnery exercises 0001Z to 1300Z daily 03, 04, 06, 07, 10 thru 14, 17 thru 21, and 24 thru 28 apr in area…
- HYDROPAC 503/06 · Exercises2006-03-24 → 2006-04-28Gunnery exercises 0001Z to 1300Z daily 03, 04, 06, 07, 10 thru 14, 17 thru 21, 24 thru 28 apr in area bound…
- HYDROPAC 328/06 · Exercises2006-02-28 → 2006-03-31Gunnery exercises 0001Z to 1300Z daily 02, 03, 06 thru 10, 13 thru 17, 20 thru 24 and 27 thru 31 mar in area…
- HYDROPAC 309/06 · Exercises2006-02-25 → 2006-03-31Gunnery exercises 0001Z to 1300Z daily 02, 03, 06 thru 10, 13 thru 17, 20 thru 24 and 27 thru 31 mar in area…
- HYDROPAC 163/06 · Exercises2006-01-30 → 2006-02-28Gunnery exercises 0001Z to 1300Z daily 01 thru 03, 06 thru 10, 13 thru 17, 20 thru 24, 27 and 28 feb in area…
- HYDROPAC 145/06 · Exercises2006-01-27 → 2006-02-28Gunnery exercises 0001Z to 1300Z daily 01 thru 03, 06 thru 10, 13 thru 17, 20 thru 24, 27 and 28 feb in area…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.