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 1298/11 · Exercises2011-04-28 → 2011-05-06Gunnery exercises 2300Z to 0800Z commencing daily 01 thru 03 and 05 may in area bound by 38-25N 128-45E,…
- HYDROPAC 1252/11 · Incidents2011-04-25 → 2011-05-14Zaliv petra velikogo
- HYDROPAC 1222/11 · Exercises2011-04-21 → 2011-04-29Gunnery exercises 2300Z to 0800Z commencing daily 24 thru 28 apr in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 1221/11 · Exercises2011-04-21 → 2011-04-29Gunnery exercises 0001Z to 0800Z daily 25 thru 29 apr in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- HYDROPAC 1170/11 · Missiles2011-04-15 → 2011-04-21Hazardous operations 2300Z to 0200Z commencing daily 19 and 20 apr, 0400Z to 0700Z daily 20 and 21 apr area…
- HYDROPAC 1162/11 · Missiles2011-04-14 → 2011-04-21Hazardous operations 2300Z to 0200Z commencing daily 19 and 20 apr and 0400Z to 0700Z daily 20 and 21 apr in…
- HYDROPAC 1158/11 · Exercises2011-04-14 → 2011-04-22Gunnery exercises 2300Z to 0800Z commencing daily 17 thru 21 apr in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 1157/11 · Exercises2011-04-14 → 2011-04-22Gunnery exercises 0001Z to 0800Z daily 18 thru 22 apr in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- HYDROPAC 1144/11 · Missiles2011-04-13 → 2011-04-19Hazardous operations 182300Z to 190200Z and 190400Z to 190700Z apr in area bound by 41-15.7N 133-46.5E,…
- USGS-USP000HZSF · Quakes2011-04-11 → 2011-04-148 km wsw of iiyama, japan
- HYDROPAC 1072/11 · Exercises2011-04-06 → 2011-04-15Gunnery exercises 2300Z to 0800Z commencing daily 10 thru 14 apr in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 1071/11 · Exercises2011-04-06 → 2011-04-15Gunnery exercises 0001Z to 0800Z daily 11 thru 15 apr in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- HYDROPAC 1002/11 · Exercises2011-03-30 → 2011-04-10Gunnery exercises 2300Z to 0800Z commencing daily 03 thru 09 apr in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 1001/11 · Exercises2011-03-30 → 2011-04-08Gunnery exercises 0001Z to 0800Z daily 04 thru 08 apr in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- HYDROPAC 924/11 · Exercises2011-03-23 → 2011-04-03Gunnery exercises 2300Z to 0800Z commencing daily 27 mar thru 02 apr in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 923/11 · Exercises2011-03-23 → 2011-04-01Gunnery exercises 0001Z to 0800Z daily 28 mar thru 01 apr in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- HYDROPAC 817/11 · Exercises2011-03-16 → 2011-03-27Gunnery exercises 2300Z to 0800Z commencing daily 18 thru 26 mar in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 816/11 · Exercises2011-03-16 → 2011-03-25Gunnery exercises 0001Z to 0800Z daily 21 thru 25 mar in area bound by 38-15N 129-51E, 38-14N 130-10E,…
- USGS-USP000HW1Y · Quakes2011-03-11 → 2011-03-1488 km wnw of noshiro, japan
- USGS-USP000HW1N · Quakes2011-03-11 → 2011-03-14Earthquake magnitude 5.7 (ms) in 36.943N 138.300E, depth 12 km at 111931Z mar 11
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.