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 2140/11 · Missiles2011-07-30 → 2011-08-08Hazardous operations 2300Z to 0100Z commencing daily 04 thru 07 aug and 0400Z to 0600Z daily 05 thru 08 aug…
- HYDROPAC 1945/11 · Exercises2011-07-06 → 2011-07-13Hazardous operations 2200Z to 0900Z commencing daily 11 and 12 jul in area bound by 42-13.8N 131-27.1E,…
- HYDROPAC 1841/11 · Missiles2011-06-25 → 2011-07-04Hazardous operations: a. 2200Z to 0200Z commencing daily 30 jun and 03 jul and 0400Z to 0900Z daily 01 and…
- HYDROPAC 1745/11 · Exercises2011-06-15 → 2011-06-24Gunnery exercises 0001Z to 0800Z daily 20 thru 24 jun in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- HYDROPAC 1744/11 · Exercises2011-06-15 → 2011-06-24Gunnery exercises 2300Z to 0800Z commencing daily 19 thru 23 jun in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 1676/11 · Exercises2011-06-08 → 2011-06-17Gunnery exercises 0001Z to 0800Z daily 13 thru 17 jun in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- HYDROPAC 1675/11 · Exercises2011-06-08 → 2011-06-17Gunnery exercises 2300Z to 0800Z commencing daily 12 thru 16 jun in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 1628/11 · Exercises2011-06-02 → 2011-06-10Gunnery exercises 2300Z to 0800Z commencing daily 06 thru 09 jun in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 1627/11 · Exercises2011-06-02 → 2011-06-10Gunnery exercises 0001Z to 0800Z daily 07 thru 10 jun in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- HYDROPAC 1557/11 · Exercises2011-05-25 → 2011-06-03Gunnery exercises 2300Z to 0800Z commencing daily 29 may thru 02 jun in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 1555/11 · Exercises2011-05-25 → 2011-06-03Gunnery exercises 0001Z to 0800Z daily 30 may thru 03 jun in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- HYDROPAC 1512/11 · Exercises2011-05-20 → 2011-05-27Gunnery exercises 2300Z to 0600Z commencing daily 24 thru 26 may in area bound by 48-56N 140-38E, 49-02N…
- HYDROPAC 1493/11 · Exercises2011-05-18 → 2011-05-27Gunnery exercises 0001Z to 0800Z daily 23 thru 27 may in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- HYDROPAC 1489/11 · Exercises2011-05-18 → 2011-05-27Gunnery exercises 2300Z to 0800Z commencing daily 22 thru 26 may in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 1437/11 · Exercises2011-05-13 → 2011-05-21Gunnery exercises 2300Z to 0800Z commencing daily 15 thru 20 may in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 1436/11 · Exercises2011-05-12 → 2011-05-20Gunnery exercises 0001Z to 0800Z daily 16 thru 20 may in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- HYDROPAC 1357/11 · Exercises2011-05-04 → 2011-05-13Gunnery exercises 2300Z to 0800Z commencing daily 08 and 10 thru 12 may in area bound by 38-25N 128-45E,…
- HYDROPAC 1356/11 · Exercises2011-05-04 → 2011-05-13Gunnery exercises 0001Z to 0800Z daily 09 and 11 thru 13 may in area bound by 38-15N 129-51E, 38-14N…
- HYDROPAC 1325/11 · Incidents2011-04-30 → 2011-05-14Japan-west coast man overboard from F/V kise MARU-1 in 35-49N 134-25E at 291930Z apr
- HYDROPAC 1299/11 · Exercises2011-04-28 → 2011-05-06Gunnery exercises 0001Z to 0800Z daily 02 thru 04 and 06 may in area bound by 38-15N 129-51E, 38-14N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.