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 661/10 · Exercises2010-04-01 → 2010-04-07Gunnery exercises 2300Z to 0800Z commencing daily 04 thru 06 apr in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 660/10 · Exercises2010-04-01 → 2010-04-09Gunnery exercises 0001Z to 0800Z daily 05 thru 09 apr in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- USGS-USP000HA4N · Quakes2010-03-30 → 2010-04-02177 km wnw of iwanai, japan
- HYDROPAC 591/10 · Exercises2010-03-24 → 2010-04-02Gunnery exercises 0001Z to 0800Z daily 29 mar thru 02 apr in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- HYDROPAC 557/10 · Exercises2010-03-20 → 2010-03-25Gunnery exercises 242300Z to 250800Z mar in area bound by 38-25N 128-45E, 38-25N 129-30E, 38-10N 129-30E,…
- HYDROPAC 523/10 · Exercises2010-03-17 → 2010-03-26Gunnery exercises 0001Z to 0800Z daily 22 thru 26 mar in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- HYDROPAC 465/10 · Exercises2010-03-11 → 2010-03-19Gunnery exercises 0001Z to 0800Z daily 15 thru 19 mar in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- HYDROPAC 418/10 · Exercises2010-03-04 → 2010-03-12Gunnery exercises 0001Z to 0800Z daily 08 thru 12 mar in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- HYDROPAC 417/10 · Exercises2010-03-04 → 2010-03-12Gunnery exercises 0001Z to 0800Z daily 09, 10 and 12 mar in area bound by 38-25N 128-45E, 38-25N 129-30E,…
- HYDROPAC 364/10 · Exercises2010-02-25 → 2010-03-05Gunnery exercises 0001Z to 0800Z daily 02 thru 05 mar in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- USGS-USP000H7DN · Quakes2010-02-18 → 2010-02-2115 km ssw of kraskino, russia
- HYDROPAC 320/10 · Exercises2010-02-17 → 2010-02-23Gunnery exercises 2300Z to 0800Z commencing daily 21 and 22 feb in area bound by 38-25N 128-45E, 38-25N…
- HYDROPAC 319/10 · Exercises2010-02-17 → 2010-02-26Gunnery exercises 0001Z to 0800Z daily 22 thru 26 feb in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- HYDROPAC 272/10 · Exercises2010-02-11 → 2010-02-19Gunnery exercises 0001Z to 0800Z daily 16 thru 19 feb in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- HYDROPAC 226/10 · Exercises2010-02-03 → 2010-02-12Gunnery exercises 0001Z to 0800Z daily 08 thru 12 feb in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- HYDROPAC 158/10 · Exercises2010-01-27 → 2010-02-05Gunnery exercises 0001Z to 0800Z daily 01 thru 05 feb in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- HYDROPAC 102/10 · Exercises2010-01-20 → 2010-01-29Gunnery exercises 0001Z to 0800Z daily 25 thru 29 jan in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- HYDROPAC 71/10 · Exercises2010-01-14 → 2010-01-22Gunnery exercises 0001Z to 0800Z daily 18 thru 22 jan in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- HYDROPAC 28/10 · Exercises2010-01-06 → 2010-01-15Gunnery exercises 0001Z to 0800Z daily 11 thru 15 jan in area bound by 38-08N 129-51E, 38-08N 130-10E,…
- HYDROPAC 2442/09 · Exercises2009-12-30 → 2010-01-08Gunnery exercises 0001Z to 0800Z daily 04 thru 08 jan in area bound by 38-08N 129-51E, 38-08N 130-10E,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.