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 1153/07 · Cable ops2007-07-03 → 2007-07-08Seismic survey in progress until 20 aug by M/V orient explorer towing four 5500 meter long cables in area…
- USGS-USP000FF73 · Quakes2007-07-01 → 2007-07-0432 km w of shibetsu, japan
- HYDROPAC 1059/07 · Cable ops2007-06-16 → 2007-08-01Seismic survey 190001Z jun thru 010001Z aug by M/V ramform victory towing 12 5100 meter long cables in area…
- HYDROPAC 1041/07 · Cable ops2007-06-13 → 2007-08-21Seismic survey in progress until 20 aug by M/V zephyr 1 towing 6500 meter long cable in area bound by…
- HYDROPAC 984/07 · Nav aids2007-06-05 → 2007-12-02Mys sredniy light 52-12.38N 141-33.63E unlit
- HYDROPAC 966/07 · Surveys2007-05-31 → 2007-06-16Oceanographic operations in progress until 15 jun in vicinity: a. 53-28.00N 144-05.00E
- HYDROPAC 943/07 · Surveys2007-05-27 → 2007-12-31Survey operations in progress until 30 dec in area bound by 52-20N 143-15E, 53-10N 143-20E, 53-10N 143-45E,…
- USGS-USP000F7V3 · Quakes2007-03-30 → 2007-04-0213 km ene of otrada, russia
- USGS-USP000F6K5 · Quakes2007-03-12 → 2007-03-15Earthquake magnitude 5.6 (mwb) in 46.897N 151.770E, depth 145 km at 121859Z mar 07
- HYDROPAC 29/07 · Incidents2007-01-05 → 2007-01-12Derelict vessel capsized, partially submerged and adrift in 47-04.8N 148-48.2E
- USGS-USP000EZW3 · Quakes2006-12-09 → 2006-12-12253 km nnw of kuril’sk, russia
- USGS-USP000EYJ0 · Quakes2006-11-22 → 2006-11-2539 km n of shikotan, russia
- HYDROPAC 2224/06 · Nav aids2006-11-16 → 2007-02-01Lights unlit: 1. mys dzhaore south range front and rear 52-39.9N 141-16.9E
- HYDROPAC 2223/06 · Nav aids2006-11-16 → 2007-01-16Ostrov urup light 46-13.9N 150-34.0E temporarily unlit
- HYDROPAC 2222/06 · Incidents2006-11-16 → 2007-01-10Five persons missing from F/V yosu maru no 31 vicinity 44-04.9N 145-39.4E
- USGS-USP000EXFS · Quakes2006-11-15 → 2006-11-18Earthquake magnitude 6.0 (mb) in 47.518N 152.647E, depth 10 km at 151125Z nov 06
- HYDROPAC 1956/06 · Cable ops2006-10-10 → 2006-11-10Seismic survey in progress until 100001Z nov by M/V ramform victory towing 12 5100 meter long cables in area…
- HYDROPAC 1730/06 · Exercises2006-09-04 → 2006-09-14Hazardous operations 07 thru 13 sep: a. in area bound by 47-36.0N 151-17.0E, 47-41.5N 151-18.0E, 48-03.0N…
- HYDROPAC 1725/06 · Cable ops2006-09-03 → 2006-11-16Seismic survey 05 sep thru 15 nov by vessel DISCOVERER-2 towing 6000 meter long cable in area bound by:…
- HYDROPAC 1724/06 · Exercises2006-09-03 → 2006-09-14Hazardous operations 1300Z to 1800Z daily and 1900Z to 0700Z commencing daily 08 thru 13 sep in areas bound…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.