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 · 593 cancelled
- HYDROPAC 1787/12 · Exercises2012-06-25 → 2012-07-03Gunnery exercises 2100Z to 0100Z commencing daily 30 jun thru 02 jul in area bound by 46-18.5N 143-04.5E,…
- HYDROPAC 1786/12 · Exercises2012-06-25 → 2012-07-01Gunnery exercises 2300Z to 0200Z commencing daily 28 thru 30 jun in area bound by 47-04.0N 151-30.0E,…
- HYDROPAC 1777/12 · Missiles2012-06-24 → 2012-06-30Hazardous operations 2200Z to 0900Z commencing daily 28 jun thru 02 jul in area bound by 46-52.0N 143-07.0E,…
- HYDROPAC 1763/12 · Towing2012-06-22 → 2012-07-16Geophysical operations in progress until 15 jul by M/V zephyr-i towing 1000 meter long cable in area bound…
- HYDROPAC 1743/12 · Exercises2012-06-20 → 2012-06-25Gunnery exercises 2100Z to 0001Z commencing daily 25 thru 27 jun in area bound by 46-18.5N 143-04.5E,…
- HYDROPAC 1714/12 · Exercises2012-06-18 → 2012-06-26Gunnery exercises 2300Z to 0200Z commencing daily 23 thru 25 jun in area bound by 48-04.0N 149-45.0E,…
- HYDROPAC 1713/12 · Exercises2012-06-18 → 2012-06-25Gunnery exercises 2300Z to 0200Z commencing daily 23 thru 25 jun in area bound by 47-04.0N 151-30.0E,…
- HYDROPAC 1626/12 · Surveys2012-06-10 → 2012-11-11Sea of okhotsk 1. survey operations 15 jun thru 10 nov by M/V professor bogorov towing 800 meter long cable…
- HYDROPAC 1593/12 · Cable ops2012-06-07 → 2012-09-26Cable laying operations 10 jun thru 31 oct vicinity of trackline between 52-12.67N 141-31.39E and 52-13.23N…
- HYDROPAC 1555/12 · Nav aids2012-06-04 → 2017-01-28Lights unlit: 1. zaliv chayvo 52-21.5N 143-11.4E
- HYDROPAC 1554/12 · Surveys2012-06-04 → 2012-11-01Survey operations in progress until further notice by M/V ivan kireev within 250 meters of trackline joining…
- HYDROPAC 1390/12 · Restricted2012-05-17 → 2012-05-26Navigation prohibited 0515Z to 0735Z and 0935Z to 1155Z daily 22 thru 26 may in area bound by 59-10N…
- USGS-USP000JG4U · Quakes2012-03-12 → 2012-03-1521 km w of kuril’sk, russia
- HYDROPAC 3552/11 · Nav aids2011-12-20 → 2017-04-05Nga chart 96800 (4TH ed)
- HYDROPAC 3528/11 · Incidents2011-12-18 → 2012-02-04Drillship kolskaya sank in 49-23N 148-21E at 180145Z dec
- HYDROPAC 3480/11 · Wrecks2011-12-13 → 2012-10-20Nga chart 96480 (3RD ed)
- USGS-USP000JC0A · Quakes2011-12-09 → 2011-12-12137 km ese of dolinsk, russia
- HYDROPAC 3376/11 · Nav aids2011-12-04 → 2011-12-07Nga chart 96360 (4TH ed)
- HYDROPAC 3006/11 · Surveys2011-10-25 → 2011-11-21Survey operations 29 oct thru 20 nov by M/V dozornyy in areas bound by: a. 51-17-17N 144-00-24E, 51-19-42N…
- HYDROPAC 3000/11 · Derelicts2011-10-25 → 2011-10-28Derelict barge adrift in 56-33.5N 148-43.7E at 241340Z oct
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.