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 1561/22 · Surveys2022-06-04 → 2022-06-15Scientific mooring, least depth 45 meters, temporarily established until 30 jun in 51-29.30N 143-38.20E
- HYDROPAC 1530/22 · Surveys2022-06-01 → 2022-06-22Survey operations 05 jun thru 15 nov by M/V nikolay trubyatchinskiy and M/V kalas in area bound by 51-36.08N…
- HYDROPAC 1508/22 · Surveys2022-05-30 → 2022-06-15Scientific mooring, least depth 66 meters, temporarily established until 30 jun in 51-33.60N 143-45.70E
- HYDROPAC 1491/22 · Missiles2022-05-28 → 2022-06-15Missile and gunnery operations 2200Z to 0800Z daily 31 may thru 14 jun in areas bound by a. 49-00.00N…
- HYDROPAC 1473/22 · Missiles2022-05-27 → 2022-06-15Missile operations 2200Z to 0800Z daily 31 may thru 14 jun in areas bound by a. 45-20.00N 150-10.00E,…
- HYDROPAC 1462/22 · Surveys2022-05-25 → 2022-07-14Survey operations 291400Z may to 151400Z jun and 231400Z jun to 141400Z jul by M/V vitse admiral vorontsov…
- HYDROPAC 1450/22 · Surveys2022-05-24 → 2022-06-29Survey operations 29 may thru 30 jul by M/V geophisik in area bound by 51-34-55N 143-24-16E, 51-34-54N…
- HYDROPAC 1363/22 · Exercises2022-05-17 → 2022-05-25Gunnery exercises 200700Z to 220001Z and 240800Z to 250400Z may in area bound by 46-18.00N 142-34.00E,…
- HYDROPAC 493/22 · Missiles2022-02-25 → 2022-03-15Missile and gunnery operations 2100Z to 1000Z daily 28 feb thru 30 mar in area bound by 45-47N 148-43E,…
- HYDROPAC 479/22 · Missiles2022-02-24 → 2022-03-15Missile and gunnery exercises 2100Z to 1000Z daily 28 feb thru 30 mar in areas bound by: a. 43-10N 146-36E,…
- HYDROPAC 478/22 · Missiles2022-02-24 → 2022-03-15Missile and gunnery exercises 2100Z to 1000Z daily 28 feb thru 30 mar in areas bound by: a. 48-40.0N…
- HYDROPAC 477/22 · Missiles2022-02-24 → 2022-03-15Missile and gunnery exercises 2100Z to 1000Z daily 28 feb thru 30 mar in areas bound by: a. 45-24N 148-55E,…
- HYDROPAC 391/22 · Missiles2022-02-14 → 2022-02-19Missile and gunnery operations 161400Z to 281400Z feb in area bound by 47-02N 145-27E, 45-30N 147-58E,…
- HYDROPAC 390/22 · Missiles2022-02-14 → 2022-02-19Missile and gunnery operations 151400Z to 281400Z feb in areas bound by: a. 48-30N 152-10E, 48-00N 153-05E,…
- HYDROPAC 298/22 · Missiles2022-02-03 → 2022-02-19Missile and gunnery operations 071400Z to 251400Z feb in areas bound by: a. 43-10-00N 146-36-00E, 42-58-00N…
- HYDROPAC 3029/21 · Surveys2021-10-23 → 2021-12-02Underwater operations 26 oct thru 09 dec by M/V fyodor kovrov in area bound by 51-34-55N 143-24-16E,…
- HYDROPAC 2993/21 · Surveys2021-10-19 → 2021-11-16Survey operations in progress until 15 nov by M/V vyacheslav tikhonov towing eight 9600 meter long cables in…
- USGS-US6000FT86 · Quakes2021-10-09 → 2021-10-12Earthquake magnitude 5.6 (mww) in 50.042N 149.875E, depth 448 km at 090719Z oct 21
- HYDROPAC 2737/21 · Surveys2021-09-27 → 2021-10-20Survey operations 28 sep thru 19 oct by M/V marshal gelovany in area bound by 49-00N 151-00E, 49-00N…
- USGS-US7000F7EN · Quakes2021-09-03 → 2021-09-06286 km e of poronaysk, russia
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.