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

Exercises63549%
Missiles19015%
Other1058%
Incidents1038%
Quakes877%
Derelicts514%
Surveys343%
Ordnance292%
Cable ops242%
Nav aids171%
Restricted151%
Wrecks50%
Debris30%
Containers20%
Volcanic10%

Archive · 1,301 cancelled

  1. HYDROPAC 991/21 · Missiles2021-03-31 → 2021-04-08
    Missile operations 2100Z to 1000Z daily 04 to 07 apr in area bound by 42-40.0N 131-41.0E, 42-40.0N…
  2. HYDROPAC 989/21 · Missiles2021-03-31 → 2021-04-14
    Missile operations 2100Z to 1000Z daily 05 thru 13 apr in area bound by 42-30.25N 131-03.10E, 42-30.25N…
  3. HYDROPAC 930/21 · Missiles2021-03-24 → 2021-04-03
    Missile operations 2100Z to 1000Z daily 28 mar to 02 apr in area bound by 42-40.0N 131-41.0E, 42-40.0N…
  4. HYDROPAC 915/21 · Surveys2021-03-23 → 2021-04-05
    Underwater operations 282100Z mar to 052100Z apr in area bound by 43-04.0N 134-27.6E, 43-04.0N 134-42.2E,…
  5. HYDROPAC 893/21 · Exercises2021-03-21 → 2021-03-26
    Gunnery exercises 241400Z to 261400Z mar in area bound by 42-30N 131-00E, 42-30N 131-30E, 42-20N 131-30E,…
  6. HYDROPAC 892/21 · Missiles2021-03-21 → 2021-03-27
    Missile and gunnery operations 2100Z to 1000Z daily 21 to 26 mar in area bound by 42-40.0N 131-41.0E,…
  7. HYDROPAC 891/21 · Exercises2021-03-21 → 2021-03-27
    Gunnery exercise 2100Z to 1100Z daily 21 thru 26 mar in area bound by 42-56-42N 131-31-36E, 43-04-00N…
  8. HYDROPAC 890/21 · Exercises2021-03-21 → 2021-03-27
    Gunnery exercises 2100Z to 1100Z daily 21 thru 26 mar in area bound by 42-39N 132-23E, 42-39N 132-35E,…
  9. HYDROPAC 852/21 · Missiles2021-03-17 → 2021-03-27
    Missile operations 2100Z to 1000Z daily 21 thru 26 mar in area bound by 42-40.0N 131-41.0E, 42-40.0N…
  10. HYDROPAC 779/21 · Missiles2021-03-10 → 2021-03-20
    Missile operations 2200Z to 1000Z daily 14 thru 19 mar in area bound by 42-40.0N 131-41.0E, 42-40.0N…
  11. HYDROPAC 711/21 · Missiles2021-03-04 → 2021-03-13
    Missile operations 2200Z to 1000Z daily 08 thru 12 mar in area bound by 42-40.0N 131-41.0E, 42-40.0N…
  12. HYDROPAC 647/21 · Missiles2021-02-26 → 2021-03-06
    Missile operations 0001Z to 1400Z daily 02 thru 06 mar in area bound by 42-00N 132-20E, 42-20N 132-20E,…
  13. HYDROPAC 580/21 · Missiles2021-02-19 → 2021-02-19
    Missile operations 2200Z to 1000Z daily 23 thru 26 feb in area bound by 42-40.0N 131-41.0E, 42-40.0N…
  14. HYDROPAC 568/21 · Exercises2021-02-18 → 2021-02-27
    Gunnery exercise 2200Z to 1000Z daily 23 thru 26 feb in area bound by 42-56-42N 131-31-36E, 43-04-00N…
  15. HYDROPAC 567/21 · Missiles2021-02-18 → 2021-02-27
    Gunnery and missile operations 2200Z to 1000Z daily 23 thru 26 feb in area bound by 42-40.0N 131-41.0E,…
  16. HYDROPAC 566/21 · Exercises2021-02-18 → 2021-02-27
    Gunnery exercise 2200Z to 1000Z daily 23 thru 26 feb in area bound by 42-20N 132-23E, 42-39N 132-23E, 42-39N…
  17. HYDROPAC 432/21 · Missiles2021-02-05 → 2021-02-20
    Missile and gunnery exercises 2200Z to 1000Z daily 10 thru 12 and 14 thru 19 feb in area bound by 42-40.0N…
  18. HYDROPAC 431/21 · Missiles2021-02-05 → 2021-02-20
    Missile and gunnery exercises 2200Z to 1000Z daily 10 thru 12 and 14 thru 19 feb in area bound by 42-20N…
  19. HYDROPAC 427/21 · Exercises2021-02-04 → 2021-02-20
    Gunnery exercises 2200Z to 1000Z daily 09 thru 12 and 14 thru 19 feb in area bound by 42-56-42N 131-31-36E,…
  20. HYDROPAC 425/21 · Exercises2021-02-04 → 2021-03-12
    Gunnery exercises 2200Z to 1400Z daily 08, 10, 16 thru 18, 23 thru 25 feb, 02 and 09 thru 11 mar in area…

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.