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.
- An older warning still listed in force · issued 2025-01-29 09:55ZIn 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.
In force now · 6
- HYDROPAC 2860/26 · Missiles2026-10-02Missile operations occur in the Sea of Okhotsk off Kamchatka from 1400 UTC to 0900 UTC daily, 5 through 15 October, within a bounded area.
- HYDROPAC 2014/26 · Surveys2026-07-14Survey operations by vessel Nikolay Trubyatchinskiy in Sea of Okhotsk near Kuril Islands from 15 July to 15 October, requesting 400 meter berth.
- HYDROPAC 1869/26 · Nav aids2026-06-29A wave rider buoy has been established in the Sea of Okhotsk, Russia at 51-22.54N 144-14.17E.
- HYDROPAC 1516/26 · Surveys2026-05-22Underwater operations are active in the Sea of Okhotsk, Russia, from 25 May through 31 December; wide berth requested.
- HYDROPAC 1291/26 · Surveys2026-04-23Underwater operations in the Sea of Okhotsk, Russia, run from 1 May to 31 October; wide berth requested.
- HYDROPAC 221/25 · Nav aids2025-01-29In 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
- HYDROPAC 221/25 · Nav aids2025-01-29In 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.
- HYDROPAC 1291/26 · Surveys2026-04-23Underwater operations in the Sea of Okhotsk, Russia, run from 1 May to 31 October; wide berth requested.
- HYDROPAC 1516/26 · Surveys2026-05-22Underwater operations are active in the Sea of Okhotsk, Russia, from 25 May through 31 December; wide berth requested.
- HYDROPAC 1869/26 · Nav aids2026-06-29A wave rider buoy has been established in the Sea of Okhotsk, Russia at 51-22.54N 144-14.17E.
- HYDROPAC 2014/26 · Surveys2026-07-14Survey 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
| Surveys | 168 | 28% |
| Exercises | 89 | 15% |
| Quakes | 80 | 13% |
| Cable ops | 65 | 11% |
| Missiles | 51 | 9% |
| Nav aids | 38 | 6% |
| Incidents | 27 | 5% |
| Restricted | 23 | 4% |
| Other | 21 | 4% |
| Towing | 13 | 2% |
| Derelicts | 9 | 2% |
| Wrecks | 9 | 2% |
| Structures | 3 | 1% |
| Debris | 2 | 0% |
| Containers | 1 | 0% |
| Ordnance | 1 | 0% |
Archive · 594 cancelled
- HYDROPAC 1816/23 · Missiles2023-05-31 → 2023-06-20Missile and gunnery 2200Z to 1000Z daily 04 thru 19 jun in areas bound by: a. 50-00.00N 155-15.00E,…
- HYDROPAC 1766/23 · Surveys2023-05-27 → 2024-01-01Underwater operations 01 jun thru 31 dec in area bound by 51-34.91N 143-24.26E, 51-34.90N 144-06.22E,…
- HYDROPAC 1715/23 · Surveys2023-05-23 → 2023-05-26Survey operations 251400Z to 261400Z may in area bound by 46-17.50N 142-33.80E, 46-23.00N 142-51.00E,…
- HYDROPAC 1653/23 · Surveys2023-05-18 → 2023-08-07Survey operations 21 may thru 18 nov by M/V nikolay trubyatchinskiy, M/V feydor kovrov kalas and M/V…
- HYDROPAC 1286/23 · Exercises2023-04-18 → 2023-04-23Hazardous operations 2200Z to 1000Z daily 18 thru 22 apr in areas bound by: a. 47-19.50N 143-36.20E,…
- HYDROPAC 1259/23 · Exercises2023-04-15 → 2023-04-22Hazardous operations 2200Z to 1000Z daily 17 thru 21 apr in areas bound by: a. 45-46.00N 147-55.00E,…
- USGS-US6000K2KK · Quakes2023-04-07 → 2023-04-10107 km sw of severo-kuril’sk, russia
- HYDROPAC 1140/23 · Exercises2023-04-05 → 2023-04-10Gunnery exercises 1400Z to 0800Z daily 06 thru 09 apr in areas bound by: a. 57-10.00N 148-01.60E, 57-10.00N…
- HYDROPAC 3079/22 · Restricted2022-11-01 → 2022-11-04500 meter safety zone established in: a. 51-27.32N 143-53.20E
- HYDROPAC 2843/22 · Surveys2022-10-11 → 2022-10-25Scientific mooring, fl y, at depth 80 meters, established in 51-25.40N 143-51.13E
- HYDROPAC 2556/22 · Surveys2022-09-15 → 2022-10-14Survey operations 17 sep thru 07 nov by M/V spasatel zaborshchikov in areas bound by: a. 51-34.92N…
- HYDROPAC 2351/22 · Surveys2022-08-26 → 2022-11-01Underwater operations in progress until 31 oct by M/V akademik cherskiy in area bound by 51-27.40N…
- HYDROPAC 2290/22 · Surveys2022-08-21 → 2022-08-26Survey operations in progress until 25 aug by M/V vyacheslav tikhonov towing eight 4500 meter long cables in…
- HYDROPAC 2248/22 · Missiles2022-08-15 → 2022-08-20Gunnery and missile operations 2200Z to 0800Z daily 17 thru 30 aug in areas bound by: a. 48-32.00N…
- HYDROPAC 2209/22 · Missiles2022-08-11 → 2022-08-22Missile and gunnery operations 2300Z to 0800Z daily 16 thru 30 aug in area bound by 47-56.60N 153-30.40E,…
- HYDROPAC 2092/22 · Surveys2022-08-01 → 2022-08-21Survey operations 06 thru 20 aug by M/V vyacheslav tikhonov towing eight 4500 meter long cables in areas…
- HYDROPAC 1784/22 · Surveys2022-06-30 → 2022-08-01Survey operations 01 thru 31 jul by vessel diabaz in area bound by 51-27.56N 143-50.42E, 51-27.48N…
- HYDROPAC 1713/22 · Surveys2022-06-22 → 2022-10-31Survey operations 24 jun thru 10 nov in area bound by 51-34-46N 143-33-43E, 51-40-32N 143-54-09E, 51-29-23N…
- HYDROPAC 1623/22 · Surveys2022-06-12 → 2023-01-01Underwater operations 15 jun thru 31 dec in area bound by 51-34.91N 143-24.26E, 51-34.90N 144-06.22E,…
- HYDROPAC 1595/22 · Surveys2022-06-09 → 2022-07-27Survey operations 12 jun thru 07 aug by M/V vyacheslav tikhonov and M/V atlas towing eight 4500 meter long…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.