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 691/00 · Incidents2000-05-07 → 2000-05-07Distress signal received from M/V peter bogdanov in 49-12N 145-42E at 070701Z may
- HYDROPAC 80/00 · Nav aids2000-01-15 → 2000-02-25Radiobeacons off air: a. kurbatova 50-52N 156-29E
- HYDROPAC 1371/99 · Containers1999-12-08 → 1999-12-14Numerous containers adrift in 46-46N 147-56E on 07 dec
- HYDROPAC 1289/99 · Derelicts1999-11-22 → 1999-11-25Derelict scow adrift vicinity 57-59.5N 154-02.5E
- HYDROPAC 1005/99 · Exercises1999-09-26 → 1999-10-02Hazardous operations 0200Z to 1500Z daily 01 and 02 oct: a. in area bound by 47-36N 151-21E, 47-54N 151-06E,…
- USGS-USP0009E96 · Quakes1999-09-10 → 1999-09-13205 km ene of kuril’sk, russia
- USGS-USP00092AR · Quakes1999-02-05 → 1999-02-08259 km nnw of kuril’sk, russia
- USGS-USP00090UA · Quakes1999-01-09 → 1999-01-1280 km ne of shikotan, russia
- USGS-USP0008TFP · Quakes1998-08-18 → 1998-08-21119 km ne of kuril’sk, russia
- USGS-USP0008FQG · Quakes1998-02-09 → 1998-02-12Earthquake magnitude 5.5 (mwc) in 51.550N 149.639E, depth 679 km at 090302Z feb 98
- USGS-USP0008CYZ · Quakes1997-12-20 → 1997-12-23Earthquake magnitude 5.9 (mwc) in 53.424N 152.762E, depth 614 km at 201326Z dec 97
- USGS-USP0008BF7 · Quakes1997-11-28 → 1997-12-01213 km e of dolinsk, russia
- USGS-USP0008AQ4 · Quakes1997-11-15 → 1997-11-1819 km nnw of shibetsu, japan
- USGS-USP00089EV · Quakes1997-10-22 → 1997-10-2577 km nne of otrada, 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.