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 1675/05 · Exercises2005-10-06 → 2005-10-08Hazardous operations 1900Z to 2300Z daily 06 thru 07 oct in area bound by 60-11N 158-42E, 60-51N 158-05E,…
- HYDROPAC 1665/05 · Surveys2005-10-05 → 2005-11-26Stopping, anchoring, flat fishing, dredging, and navigating with paid out anchor chain is prohibited until…
- HYDROPAC 1664/05 · Surveys2005-10-05 → 2005-10-31Stopping, anchoring, flat fishing, dredging, and navigating with paid out anchor chain is prohibited until…
- HYDROPAC 1641/05 · Exercises2005-10-01 → 2005-10-04Hazardous operations 0300Z to 1100Z daily 01 thru 04 oct: a. in area bound by 47-36N 151-21E, 47-54N…
- HYDROPAC 1579/05 · Exercises2005-09-25 → 2005-09-30Hazardous operations 1900Z to 2300Z daily 26 thru 29 sep in area bound by 60-11N 158-42E, 60-51N 158-05E,…
- HYDROPAC 1578/05 · Exercises2005-09-25 → 2005-10-01Hazardous operations 2300Z to 0700Z commencing daily 30 sep thru 03 oct: a. in area bound by 47-36N 151-21E,…
- USGS-USP000DZUM · Quakes2005-09-21 → 2005-09-2427 km ese of yuzhno-kurilsk, russia
- HYDROPAC 1430/05 · Exercises2005-09-02 → 2005-09-09Hazardous operations 0500Z to 1300Z daily 07 thru 09 sep in area bound by 47-30N 144-25E, 48-20N 143-00E,…
- HYDROPAC 1354/05 · Cable ops2005-08-21 → 2005-09-16Seismic survey in progress until 16 sep by M/V mezen towing 6500 meter long cable in area bound by 51-00N…
- HYDROPAC 1286/05 · Cable ops2005-08-09 → 2005-12-01Seismic survey 100001Z aug to 010001Z dec by M/V zephyr 1 towing 6500 meter long cable in area bound by…
- HYDROPAC 1129/05 · Other2005-07-14 → 2005-10-17Pipelaying operations in progress until 16 oct in area bound by 51-23-31N 143-27-56E, 51-24-36N 143-27-35E,…
- HYDROPAC 1127/05 · Cable ops2005-07-14 → 2005-10-16Seismic survey in progress until 15 oct by M/V western trident towing ten 5000 meter long cables in area…
- HYDROPAC 1083/05 · Incidents2005-07-08 → 2005-08-17Distress signal received from SPP-13 in 59-15.7N 148-52.7E at 072252Z jul
- HYDROPAC 1044/05 · Cable ops2005-07-01 → 2005-07-14Seismic survey in progress until 15 oct by M/V western trident towing ten 5000 meter cables in area bound by…
- USGS-USP000DSS4 · Quakes2005-06-12 → 2005-06-1590 km se of tungor, russia
- HYDROPAC 934/05 · Surveys2005-06-09 → 2005-10-02Stopping, anchoring, flat fishing, dredging, and navigating with paid out anchor chain is prohibited until…
- HYDROPAC 933/05 · Surveys2005-06-09 → 2005-10-02Stopping, anchoring, flat fishing, dredging, and navigating with paid out anchor chain is prohibited until…
- USGS-USP000D7UT · Quakes2004-11-07 → 2004-11-10144 km ene of dolinsk, russia
- HYDROPAC 1620/04 · Cable ops2004-10-14 → 2004-10-16Seismic survey in progress until 152400Z nov by M/V zephyr 1 towing 6500 meter long cable in area bound by…
- HYDROPAC 1593/04 · Exercises2004-10-06 → 2004-10-08Hazardous operations 0300Z to 1100Z daily 05 thru 08 oct in areas: a. bound by 47-36N 151-21E, 47-54N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.