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-USP000GBC0 · Quakes2008-07-05 → 2008-07-08Earthquake magnitude 7.7 (mwc) in 53.882N 152.886E, depth 633 km at 050212Z jul 08
- HYDROPAC 1177/08 · Nav aids2008-06-22 → 2008-06-25Nga chart 96360 (4TH ed)
- HYDROPAC 1080/08 · Restricted2008-06-06 → 2008-06-11Nga chart 96480 (3RD ed)
- HYDROPAC 868/08 · Incidents2008-05-06 → 2008-06-21Distress signal received on 406 mhz in 49-50.52N 149-23.59E
- USGS-USP000G0UG · Quakes2008-03-06 → 2008-03-094 km ne of ozernovskiy, russia
- HYDROPAC 1694/07 · Incidents2007-10-02 → 2007-12-02Distress signal received on 406 mhz vicinity 55-25-01N 153-56-38E at 020254Z oct
- HYDROPAC 1581/07 · Cable ops2007-09-13 → 2007-10-17Seismic survey in progress until 31 oct by M/V ramform victory and M/V seagood cassandra 2 towing 12 6000…
- HYDROPAC 1577/07 · Exercises2007-09-12 → 2007-09-14Hazardous operations in progress until 141100Z sep in area bound by 48-20N 143-00E, 48-35N 143-00E, 49-05N…
- USGS-USP000FKUZ · Quakes2007-08-28 → 2007-08-31170 km sw of severo-kuril’sk, russia
- HYDROPAC 1420/07 · Surveys2007-08-13 → 2007-09-01Survey operations 12 thru 31 aug by M/V diabaz towing 1600 meter long cable within two miles of 58-02-48N…
- HYDROPAC 1370/07 · Cable ops2007-08-07 → 2007-09-13Seismic survey in progress until 31 oct by M/V ramform victory and M/V seagood cassandra 2 towing 12 6000…
- HYDROPAC 1339/07 · Exercises2007-08-02 → 2007-08-11Hazardous operations 1900Z to 0500Z commencing daily 07 thru 10 aug in areas bound by: a. 47-40.0N…
- HYDROPAC 1337/07 · Exercises2007-08-02 → 2007-08-10Hazardous operations 0800Z to 1200Z daily 07 thru 10 aug in areas: a. bound by 47-36.0N 151-21.0E, 47-41.3N…
- HYDROPAC 1331/07 · Surveys2007-08-01 → 2007-08-13Survey operations in progress until 12 aug by M/V diabaz towing 1600 meter long cable within two miles of…
- HYDROPAC 1308/07 · Cable ops2007-07-28 → 2007-08-07Seismic survey 020001Z to 110001Z aug by M/V ramform victory towing twelve 5400 meter long cables in area…
- HYDROPAC 1287/07 · Surveys2007-07-26 → 2007-10-16Oceanographic operations in progress until 15 oct in areas a. 53-50.94N 143-36.05E
- HYDROPAC 1277/07 · Surveys2007-07-23 → 2007-11-05Oceanographic operations in progress until further notice in areas: 1. 54-49.9N 142-04.1E
- HYDROPAC 1276/07 · Surveys2007-07-23 → 2007-10-16Oceanographic operations in progress until 15 oct vicinity 53-38.1N 143-13.9E
- HYDROPAC 1183/07 · Cable ops2007-07-08 → 2007-08-21Seismic survey in progress until 20 aug by M/V orient explorer towing four 5500 meter long cables in area…
- HYDROPAC 1170/07 · Restricted2007-07-05 → 2007-07-08Navigation prohibited 072300Z to 080300Z jul in vicinity of 45-41N 142-08E
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.