Sea of Okhotsk

IHO sea area 54 · 135° to 167° E, 43° to 63° N

in force
6
last 12 months
19
archive messages
600
categories
16

What the archive shows

600 messages are recorded since 1997-10-22 for the Sea of Okhotsk. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.

Surveys accounts for 168 of 600 recorded messages (28%), 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 · 6

  1. HYDROPAC 2860/26 · Missiles2026-10-02
    Missile operations occur in the Sea of Okhotsk off Kamchatka from 1400 UTC to 0900 UTC daily, 5 through 15 October, within a bounded area.
  2. HYDROPAC 2014/26 · Surveys2026-07-14
    Survey operations by vessel Nikolay Trubyatchinskiy in Sea of Okhotsk near Kuril Islands from 15 July to 15 October, requesting 400 meter berth.
  3. HYDROPAC 1869/26 · Nav aids2026-06-29
    A wave rider buoy has been established in the Sea of Okhotsk, Russia at 51-22.54N 144-14.17E.
  4. HYDROPAC 1516/26 · Surveys2026-05-22
    Underwater operations are active in the Sea of Okhotsk, Russia, from 25 May through 31 December; wide berth requested.
  5. HYDROPAC 1291/26 · Surveys2026-04-23
    Underwater operations in the Sea of Okhotsk, Russia, run from 1 May to 31 October; wide berth requested.
  6. HYDROPAC 221/25 · Nav aids2025-01-29
    In the Sea of Okhotsk, Kuril Islands, the Malokuril'skiy Light at 43-52.50N 146-48.80E is reduced to eight miles range, and the previous warning 3644/24 is cancelled.

Longest in force

  1. HYDROPAC 221/25 · Nav aids2025-01-29
    In the Sea of Okhotsk, Kuril Islands, the Malokuril'skiy Light at 43-52.50N 146-48.80E is reduced to eight miles range, and the previous warning 3644/24 is cancelled.
  2. HYDROPAC 1291/26 · Surveys2026-04-23
    Underwater operations in the Sea of Okhotsk, Russia, run from 1 May to 31 October; wide berth requested.
  3. HYDROPAC 1516/26 · Surveys2026-05-22
    Underwater operations are active in the Sea of Okhotsk, Russia, from 25 May through 31 December; wide berth requested.
  4. HYDROPAC 1869/26 · Nav aids2026-06-29
    A wave rider buoy has been established in the Sea of Okhotsk, Russia at 51-22.54N 144-14.17E.
  5. HYDROPAC 2014/26 · Surveys2026-07-14
    Survey operations by vessel Nikolay Trubyatchinskiy in Sea of Okhotsk near Kuril Islands from 15 July to 15 October, requesting 400 meter berth.

By year

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

Surveys16828%
Exercises8915%
Quakes8013%
Cable ops6511%
Missiles519%
Nav aids386%
Incidents275%
Restricted234%
Other214%
Towing132%
Derelicts92%
Wrecks92%
Structures31%
Debris20%
Containers10%
Ordnance10%

Archive · 594 cancelled

  1. HYDROPAC 3372/18 · Surveys2018-09-16 → 2018-10-19
    Survey operations 18 sep thru 18 oct by M/V fyodor kovrov in area bound by 51-34-55N 143-24-16E, 51-34-54N…
  2. HYDROPAC 3275/18 · Missiles2018-09-07 → 2018-09-18
    Missile operations 121400Z to 181400Z sep in area bound by 45-00N 146-50E, 47-00N 143-16E, 48-00N 142-39E,…
  3. HYDROPAC 3274/18 · Missiles2018-09-07 → 2018-09-18
    Missile operations 121400Z to 181400Z sep in area bound by 47-27N 153-52E, 48-00N 151-25E, 48-52N 152-00E,…
  4. HYDROPAC 3232/18 · Exercises2018-09-03 → 2018-09-15
    Gunnery exercises 031400Z to 151400Z sep in area bound by 43-44.23N 145-33.48E, 43-45.55N 145-34.11E,…
  5. HYDROPAC 3187/18 · Exercises2018-08-31 → 2018-09-15
    Gunnery exercises 031400Z to 151400Z sep in area bound by 44-54-30N 147-38-10E, 44-56-50N 147-48-30E,…
  6. HYDROPAC 3114/18 · Missiles2018-08-25 → 2018-09-02
    Missile operations 301400Z aug to 021400Z sep in area bound by 45-04-00N 147-31-30E, 44-57-00N 147-06-30E,…
  7. HYDROPAC 3077/18 · Surveys2018-08-22 → 2018-09-14
    Survey operations 23 aug thru 28 sep by M/V geophisik in area bound by 51-34-55N 143-24-16E, 51-34-54N…
  8. HYDROPAC 3076/18 · Exercises2018-08-22 → 2018-09-03
    Gunnery exercises 221400Z to 241400Z aug and 301400Z aug to 031400Z sep in area bound by 44-54-30N…
  9. HYDROPAC 3065/18 · Surveys2018-08-21 → 2018-09-21
    Underwater operations in progress until 20 sep by M/V diabaz and M/V trias in: a. 51-19-37N 144-15-05E
  10. HYDROPAC 2904/18 · Surveys2018-08-10 → 2018-09-18
    Survey operations 12 aug thru 30 sep by M/V vyacheslav tikhonov towing eight 4500 meter long cables in area…
  11. HYDROPAC 2830/18 · Exercises2018-08-04 → 2018-08-12
    Gunnery exercises 2300Z to 1000Z commencing daily 09 thru 11 aug in area bounded by 44-54.30N 147-38.10E,…
  12. HYDROPAC 2698/18 · Surveys2018-07-24 → 2018-08-10
    Survey operations in progress until 18 aug by M/V vyacheslav tikhonov towing eight 4500 meter long cables in…
  13. HYDROPAC 2526/18 · Surveys2018-07-10 → 2018-08-03
    Survey operations 13 jul thru 02 aug by M/V fyodorkovrov in area bound by 51-34-55N 143-24-16E, 51-34-54N…
  14. HYDROPAC 2509/18 · Surveys2018-07-09 → 2018-07-17
    Survey operations in progress until 16 jul by M/V geophisik in area bound by 51-34-55N 143-24-16E, 51-34-54N…
  15. HYDROPAC 2507/18 · Surveys2018-07-09 → 2018-09-07
    Survey operations 12 jul thru 12 sep by M/V dong fang kan tan in areas bound by: a. 52-52-12N 143-30-03E,…
  16. USGS-US2000FT89 · Quakes2018-07-01 → 2018-07-04
    168 km e of yuzhno-sakhalinsk, russia
  17. HYDROPAC 2327/18 · Surveys2018-06-23 → 2018-07-21
    Survey operations in progress until 20 jul by M/V vyacheslav tikhonov towing eight 4500 meter long cables in…
  18. HYDROPAC 2295/18 · Surveys2018-06-21 → 2018-09-07
    Survey operations in progress until 15 nov by M/V strelets, M/V orion, M/V vega, M/V nautilus, M/V kraken,…
  19. HYDROPAC 2264/18 · Cable ops2018-06-19 → 2018-09-28
    Cable operations 23 jun until further notice along trackline joining 46-51.1N 143-10.2E, 46-52.0N 143-12.0E,…
  20. HYDROPAC 2255/18 · Nav aids2018-06-18 → 2018-07-06
    Mys vnutrenniy light 53-34.5N 142-28.3E unlit

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

Sea of Okhotsk — navigational warnings — archive page 11 · seahazards