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
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99
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16
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26
By month (all years)
J
F
M
A
M
J
J
A
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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 1191/05 · Exercises2005-07-27 → 2005-08-31Gunnery exercises 0001Z to 1300Z daily 01 thru 06, 08 thru 13, 16 thru 20, 22 thru 27 and 29 thru 31 aug in…
- HYDROPAC 1156/05 · Exercises2005-07-20 → 2005-07-27Gunnery exercises 2300Z to 0100Z commencing daily 24 thru 26 jul and 0400Z to 0600Z daily 25 thru 27 jul in…
- HYDROPAC 1091/05 · Exercises2005-07-09 → 2005-07-15Hazardous operations 0400Z to 1000Z daily 14 and 15 jul in area bound by 41-43.0N 131-31.0E, 42-03.0N…
- HYDROPAC 1084/05 · Exercises2005-07-08 → 2005-07-15Hazardous operations 2200Z to 0200Z commencing daily 13 and 14 jul in area bound by 42-26.7N 131-45.0E,…
- HYDROPAC 1045/05 · Exercises2005-07-01 → 2005-07-08Gunnery exercises 2300Z to 0100Z commencing daily 03 thru 07 jul and 0400Z to 0600Z daily 04 thru 08 jul in…
- HYDROPAC 1010/05 · Exercises2005-06-26 → 2005-07-30Gunnery exercises 0001Z to 1300Z daily 01, 02, 04 thru 09, 11 thru 16, 18 thru 23, and 25 thru 30 jul in…
- HYDROPAC 1003/05 · Exercises2005-06-25 → 2005-07-30Gunnery exercises 0001Z to 1300Z daily 01, 02, 04 thru 09, 11 thru 16, 18 thru 23 and 25 thru 30 jul in area…
- HYDROPAC 986/05 · Exercises2005-06-22 → 2005-06-28Gunnery exercises 2300Z to 0100Z commencing daily 22, 23, 26, 27 jun and 0400Z to 0600Z daily 22 thru 24, 27…
- HYDROPAC 923/05 · Exercises2005-06-07 → 2005-06-30Gunnery exercises 0001Z to 1300Z daily 01 thru 04, 07 thru 11, 13 thru 18, 20 thru 25, and 27 thru 30 jun in…
- HYDROPAC 876/05 · Exercises2005-05-26 → 2005-06-30Gunnery exercises 0001Z to 1300Z daily 01 thru 04, 07 thru 10, 13 thru 18, 20 thru 24 and 27 thru 30 jun in…
- HYDROPAC 699/05 · Exercises2005-04-27 → 2005-05-31Gunnery exercises 0001Z to 1300Z daily 02 thru 04, 06, 07, 09 thru 13, 16 thru 21, 23 thru 27, 30 and 31 may…
- USGS-USP000DNSK · Quakes2005-04-19 → 2005-04-228 km nnw of maebaru-ch??, japan
- HYDROPAC 627/05 · Exercises2005-04-14 → 2005-04-19Gunnery exercises 191300Z to 191700Z apr in area bound by 41-52.0N 132-04.0E, 42-02.5N 131-49.2E, 42-16.0N…
- HYDROPAC 502/05 · Exercises2005-03-27 → 2005-04-30Gunnery exercises 0001Z to 1300Z daily 01, 02, 04, 06 thru 09, 11 thru 16, 18 thru 23, and 25 thru 30 apr in…
- HYDROPAC 501/05 · Exercises2005-03-27 → 2005-04-30Gunnery exercises 0001Z to 1300Z daily 01, 02, 04, 06 thru 09, 11 THRU16, 18 thru 23, and 25 thru 30 apr in…
- HYDROPAC 479/05 · Exercises2005-03-22 → 2005-03-23Hazardous operations in progress until 221400Z mar and 232100Z to 251100Z mar in areas: a. between 37-25N…
- USGS-USP000DJKU · Quakes2005-03-20 → 2005-03-2328 km nnw of maebaru-ch??, japan
- HYDROPAC 355/05 · Exercises2005-02-25 → 2005-03-31Gunnery exercises 0000Z to 1300Z daily 02 thru 05, 07 thru 12, 14 thru 19, 21 thru 26, and 28 thru 31 mar in…
- HYDROPAC 341/05 · Exercises2005-02-24 → 2005-03-31Gunnery exercises 0000Z to 1300Z daily 02 thru 05, 07 thru 12, 14 thru 19, 21 thru 26, and 28 thru 31 mar in…
- HYDROPAC 312/05 · Debris2005-02-21 → 2005-02-28Floating object, reported dangerous to navigation, adrift in 45-50N 137-42E
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.