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
- USGS-US7000NX17 · Quakes2024-12-08 → 2024-12-11Earthquake magnitude 6.0 (mww) in 48.867N 152.307E, depth 207 km at 081025Z dec 24
- HYDROPAC 3247/24 · Surveys2024-10-12 → 2025-02-10Survey operations 15 oct thru 15 dec by M/V nikolay trubyatchinskiy in area bound by 57-48.00N 152-59.00E,…
- HYDROPAC 3126/24 · Exercises2024-09-24 → 2024-11-22Hazardous operations 250700Z sep to 080700Z oct in area bound by 46-20.00N 151-05.00E, 46-49.10N 151-00.50E,…
- HYDROPAC 2959/24 · Surveys2024-09-07 → 2025-02-10Survey operations 10 sep thru 25 nov by M/V fyodor kovrov in area bound by 51-31.60N 144-43.48E, 51-34.90N…
- USGS-US6000NJ9S · Quakes2024-08-10 → 2024-08-13151 km e of dolinsk, russia
- HYDROPAC 2451/24 · Surveys2024-07-19 → 2024-11-22Survey operations 22 jul thru 20 oct by M/V vyacheslav tikhonov towing eight 4050 meter long cables in area…
- HYDROPAC 2017/24 · Surveys2024-06-11 → 2025-02-10Survey operations in progress until 31 dec by M/V almaz, M/V nikolay trubyatchinskiy, M/V fyodor kovrov, M/V…
- USGS-US7000MQP4 · Quakes2024-06-06 → 2024-06-09Earthquake magnitude 5.9 (mww) in 50.113N 147.684E, depth 620 km at 061107Z jun 24
- HYDROPAC 1390/24 · Restricted2024-04-27 → 2024-05-15Navigation prohibited 271200Z apr to 151200Z may in area bound by 47-48.40N 152-41.20E, 45-34.97N…
- HYDROPAC 1379/24 · Restricted2024-04-26 → 2024-05-15Navigation prohibited until 151200Z may in areas bound by: a. 51-03.30N 156-22.20E, 50-43.10N 156-52.00E,…
- HYDROPAC 1368/24 · Exercises2024-04-25 → 2024-05-15Gunnery exercises 251400Z apr to 151200Z may in areas bound by: a. 49-55.00N 155-33.00E, 50-05.00N…
- HYDROPAC 1358/24 · Incidents2024-04-24 → 2026-08-14Distress signal received on 406 mhz at 240907Z apr in: a. 42-33.83N 132-32.51E
- HYDROPAC 1329/24 · Exercises2024-04-23 → 2024-05-15Gunnery exercises in progress until 151200Z may in area bound by 46-55.40N 151-26.00E, 46-34.40N 151-43.70E,…
- HYDROPAC 1259/24 · Exercises2024-04-17 → 2024-04-22Gunnery exercises 171100Z to 221300Z apr in area bound by 46-55.40N 151-26.00E, 46-49.10N 151-00.50E,…
- HYDROPAC 1253/24 · Restricted2024-04-17 → 2024-04-27Navigation prohibited 171100Z to 271200Z apr in area bound by 47-48.40N 152-41.20E, 45-34.97N 147-42.51E,…
- HYDROPAC 1250/24 · Restricted2024-04-17 → 2024-04-17Navigation prohibited 171200Z to 271200Z apr in area bound by 47-48.40N 152-41.20E, 45-34.97N 147-42.51E,…
- HYDROPAC 1249/24 · Restricted2024-04-16 → 2024-04-27Navigation prohibited 171200Z to 271200Z apr in area bound by 48-29.10N 153-07.30E, 48-28.40N 153-24.50E,…
- HYDROPAC 1248/24 · Restricted2024-04-16 → 2024-04-27Navigation prohibited 171200Z to 271200Z apr in area bound by 48-32.50N 153-49.50E, 48-48.00N 153-40.40E,…
- HYDROPAC 1247/24 · Restricted2024-04-16 → 2024-04-27Navigation prohibited 171200Z to 271200Z apr in area bound by 51-03.30N 156-22.20E, 50-43.10N 156-52.00E,…
- HYDROPAC 1246/24 · Exercises2024-04-16 → 2024-04-22Gunnery exercises 161200Z to 221400Z apr in areas bound by: a. 49-55.00N 155-33.00E, 50-05.00N 155-07.00E,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.