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 2630/16 · Surveys2016-08-31 → 2016-09-22Survey operations 01 thru 21 sep by M/V geophysic towing 1500 meter long cable in area bound by 51-25-27N…
- HYDROPAC 2464/16 · Exercises2016-08-17 → 2016-09-20Gunnery exercises 0001Z to 0800Z daily 22 aug thru 20 sep in area bound by 45-00-23N 147-43-22E, 44-56-01N…
- HYDROPAC 2282/16 · Cable ops2016-07-29 → 2016-09-21Cable repair operations 02 aug thru 20 sep vicinity of trackline joining 52-12-41N 141-31-24E, 52-12-44N…
- USGS-US20006H0D · Quakes2016-07-23 → 2016-07-26284 km nnw of kuril’sk, russia
- HYDROPAC 2134/16 · Exercises2016-07-16 → 2016-08-08Gunnery exercises 0001Z to 0800Z daily 18 jul thru 08 aug in area bound by 45-00-23N 147-43-22E, 44-56-01N…
- HYDROPAC 2078/16 · Cable ops2016-07-11 → 2016-08-02Seismic survey in progress until 01 aug by M/V hai yang shi you 718 towing 3.3 mile long cable in area bound…
- HYDROPAC 2054/16 · Cable ops2016-07-08 → 2016-07-11Seismic survey in progress until 01 aug by M/V hai yang shi you 718 towing 3.3 mile long cable in area bound…
- HYDROPAC 2040/16 · Nav aids2016-07-07 → 2017-01-28Lights unlit: 1. mys marii 54-18.6N 142-15.8E
- HYDROPAC 2027/16 · Missiles2016-07-06 → 2016-07-10Hazardous operations 072300Z to 080300Z, 080500Z to 080800Z, 082300Z to 090300Z, 090500Z to 090800Z, 092300Z…
- HYDROPAC 1987/16 · Missiles2016-07-03 → 2016-07-06Hazardous operations 072300Z to 080300Z, 080500Z to 080800Z, 082300Z to 090300Z and 090500Z to 090800Z jul…
- HYDROPAC 1961/16 · Cable ops2016-06-30 → 2016-07-08Seismic survey 01 thru 31 jul by M/V hai yang shi you 718 in area bound by 51-28-09N 143-29-07E, 51-34-55N…
- HYDROPAC 1859/16 · Restricted2016-06-21 → 2017-01-13Navigation prohibited 22 jun until further notice within five miles of matua (48-06N 153-12E)
- HYDROPAC 1831/16 · Nav aids2016-06-18 → 2017-04-05Mys vnutrenniy light 53-34.5N 142-28.3E unlit
- HYDROPAC 1786/16 · Surveys2016-06-14 → 2016-08-31Survey operations 17 jun thru 27 sep by M/V geophysic towing 1500 meter long cable in area bound by…
- HYDROPAC 1766/16 · Surveys2016-06-12 → 2016-08-16Survey operations 16 jun thru 15 aug by M/V diabaz towing 1200 meter long cable in area bound by 51-29-37N…
- HYDROPAC 1700/16 · Surveys2016-06-07 → 2016-09-12Underwater operations 11 jun thru 11 sep by M/V fedor kovrov towing equipment in area bound by 51-25.5N…
- HYDROPAC 1671/16 · Exercises2016-06-05 → 2016-07-01Gunnery exercises 2100Z to 1600Z commencing daily 09, 16, 23 and 30 jun in areas bound by: a. 44-53-25N…
- HYDROPAC 1416/16 · Exercises2016-05-14 → 2016-05-27Gunnery exercises 2100Z to 1300Z commencing daily 19 and 26 may in areas bound by: a. 44-53-25N 147-39-28E,…
- HYDROPAC 1354/16 · Cable ops2016-05-10 → 2016-09-15Cable laying operations 15 may thru 30 nov by cable innovator vicinity of trackline joining 53-37-17N…
- HYDROPAC 1094/16 · Other2016-04-14 → 2016-05-15Geophysical operations 151400Z apr to 151400Z may in area bound by 48-01-00N 153-02-36E, 48-08-30N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.