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% |
| Ordnance | 1 | 0% |
| Containers | 1 | 0% |
Archive · 594 cancelled
- HYDROPAC 1200/09 · Surveys2009-06-29 → 2009-07-11Survey operations in progress until further notice by M/V vladimir sukhotskiy in area bound by 52-28.1N…
- HYDROPAC 1123/09 · Derelicts2009-06-17 → 2009-06-23Derelict vessel, partially submerged and adrift in 56-49.44N 141-56.24E on 16 jun
- HYDROPAC 1104/09 · Nav aids2009-06-13 → 2009-08-17Nga chart 96400 (4TH ed)
- HYDROPAC 1049/09 · Surveys2009-06-04 → 2009-07-25Underwater operations 05 jun until further notice by M/V sukhotskiy along trackline joining 52-04.6N…
- USGS-USP000GWEF · Quakes2009-04-21 → 2009-04-2480 km wnw of severo-kuril’sk, russia
- HYDROPAC 574/09 · Incidents2009-03-19 → 2009-04-04F/V kisuka sank in 44-26N 146-00E
- HYDROPAC 104/09 · Nav aids2009-01-12 → 2009-08-22Nga chart 96800 (4TH ed)
- USGS-USP000GPBS · Quakes2008-11-24 → 2008-11-27284 km wsw of mil’kovo, russia
- HYDROPAC 2002/08 · Other2008-10-14 → 2008-11-16Geophysical operations in progress until 15 nov by M/V diabaz in areas bound by: a. 51-30-03N 143-48-37E,…
- HYDROPAC 1987/08 · Exercises2008-10-11 → 2008-10-15Hazardous operations 0300Z to 0900Z daily 12 thru 15 oct a. in area bound by 47-36N 151-21E, 47-54N 151-06E,…
- HYDROPAC 1798/08 · Other2008-09-14 → 2008-10-14Geophysical operations in progress until 31 oct by M/V diabaz in areas bound by: a. 51-48-28N 143-24-43E,…
- HYDROPAC 1797/08 · Other2008-09-14 → 2008-10-16Geophysical operations in progress until 15 oct by M/V trias and M/V crot in area bound by 52-04-44N…
- HYDROPAC 1796/08 · Exercises2008-09-14 → 2008-09-19Hazardous operations 1900Z to 0500Z commencing daily 15 thru 18 sep in areas bound by: a. 47-40.0N…
- HYDROPAC 1715/08 · Cable ops2008-09-04 → 2008-10-16Seismic survey in progress until 15 oct by M/V akademik fersman towing 5000 meter long cable in area bound…
- HYDROPAC 1571/08 · Incidents2008-08-17 → 2008-08-24Derelict F/V vostok-orion capsized and adrift vicinity 54-54N 147-59E
- HYDROPAC 1424/08 · Cable ops2008-07-26 → 2008-09-04Seismic survey 27 jul thru 01 oct by M/V akademik fersman towing 8500 meter long cable in area bound by…
- HYDROPAC 1413/08 · Other2008-07-25 → 2008-09-21Nga chart 96200 (5TH ed)
- HYDROPAC 1390/08 · Cable ops2008-07-22 → 2008-07-27Seismic survey in progress until 262359Z jul by M/V akademik fersman towing 8500 meter long cable along…
- HYDROPAC 1353/08 · Incidents2008-07-17 → 2008-08-17Man overboard from F/V mikhail staritsyn in 52-35N 156-06E at 161250Z jul
- HYDROPAC 1295/08 · Surveys2008-07-08 → 2008-07-11Underwater operations in progress until 18 jul along trackline joining 52-04.6N 141-37.8E, 52-04.3N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.