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 2335/08 · Exercises2008-11-28 → 2008-12-23Gunnery exercises 0001Z to 0800Z daily 02, 04, 09, 11, 16, 18 and 23 dec in area bound by 38-25N 128-45E,…
- HYDROPAC 2331/08 · Exercises2008-11-28 → 2008-12-13Gunnery operations 0001Z to 0800Z daily 01 thru 05, 08 thru 12, 22 thru 24, 26 and 29 thru 31 dec in area…
- HYDROPAC 2146/08 · Exercises2008-10-31 → 2008-11-28Gunnery exercises 0001Z to 0800Z daily 03, 04, 06, 07, 10, 11, 13, 14, 17, 18, 20, 21, 24, 25, 27 and 28 nov…
- HYDROPAC 2125/08 · Exercises2008-10-29 → 2008-11-28Gunnery operations 0001Z to 0800Z daily 03 thru 07, 10 thru 14, 17 thru 21 and 24 thru 28 nov in area bound…
- HYDROPAC 2032/08 · Exercises2008-10-17 → 2008-10-22Hazardous operations 2300Z to 0200Z commencing daily 20 and 21 oct and 0400Z to 0700Z daily 21 and 22 oct in…
- HYDROPAC 2016/08 · Cable ops2008-10-15 → 2008-10-16Cable repairing operations in progress until 06 nov by M/V asean restorer in area bound by 42-15.0N…
- HYDROPAC 2001/08 · Exercises2008-10-14 → 2008-10-20Hazardous operations 192300Z to 200200Z and 200400Z to 200700Z oct in area bound by 42-15.0N 131-56.5E,…
- HYDROPAC 1988/08 · Exercises2008-10-11 → 2008-10-18Gunnery exercises 2300Z to 0200Z commencing daily 16 and 17 oct and 180400Z to 180700Z oct in area bound by…
- HYDROPAC 1949/08 · Exercises2008-10-04 → 2008-10-10Hazardous operations 0300Z to 1300Z daily 09 and 10 oct in area bound by 42-00N 132-20E, 42-10N 132-00E,…
- HYDROPAC 1898/08 · Exercises2008-09-28 → 2008-10-31Gunnery exercises 0001Z to 0800Z daily 01, 02, 06 thru 10, 13 thru 17, 20 thru 24 and 27 thru 31 oct in area…
- HYDROPAC 1892/08 · Exercises2008-09-27 → 2008-10-31Gunnery exercise 0001Z to 0800Z daily 02, 06, 07, 09, 10, 13, 14, 16, 17, 20, 22, 23, 24, 27, 28, 30 and 31…
- USGS-USP000GHH2 · Quakes2008-09-22 → 2008-09-2531 km ssw of kamiiso, japan
- HYDROPAC 1841/08 · Exercises2008-09-20 → 2008-09-26Hazardous operations 2300Z to 0200Z commencing daily 24 and 25 sep and 0400Z to 0700 daily 25 and 26 sep in…
- HYDROPAC 1769/08 · Exercises2008-09-11 → 2008-09-18Hazardous operations 2300Z to 0200Z commencing daily 15 thru 17 sep and 0400Z to 0700Z daily 16 thru 18 sep…
- HYDROPAC 1766/08 · Incidents2008-09-11 → 2008-10-11Man overboard from M/V kovas in 45-20N 141-30E at 101700Z sep
- HYDROPAC 1757/08 · Surveys2008-09-09 → 2008-09-12Hydrographic survey in progress until 121400Z sep by M/V marshal gelovany in area bound by 42-42N 134-58E,…
- HYDROPAC 1746/08 · Exercises2008-09-08 → 2008-09-12Hazardous operations 0400Z to 1400Z daily 10 thru 12 sep in area bound by 42-00N 132-20E, 42-10N 132-00E,…
- HYDROPAC 1735/08 · Restricted2008-09-07 → 2008-09-08Nga chart 96004 (14TH ed)
- HYDROPAC 1708/08 · Exercises2008-09-02 → 2008-09-09Hazardous operations 2300Z to 0300Z commencing daily 07 and 08 sep in area bound by 40-19.0N 131-26.0E,…
- HYDROPAC 1687/08 · Exercises2008-08-30 → 2008-09-30Gunnery exercise 0001Z to 0800Z daily 01, 02, 04, 05, 08, 09, 11, 12, 16, 18, 19, 22, 23, 25, 26, 29 and 30…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.