Arctic Ocean
IHO sea area 17 · -180° to 180° E, 71° to 90° N
- in force
- 1
- last 12 months
- 1
- archive messages
- 260
- categories
- 13
What the archive shows
260 messages are recorded since 1991-09-16 for the Arctic Ocean. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.
Missiles accounts for 101 of 260 recorded messages (39%), 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 2024-12-17 08:58ZFour scientific moorings established in Beaufort and Chukchi Seas off Alaska at various positions and depths.
In force now · 1
Longest in force
By year
91
97
99
02
04
05
06
07
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09
10
11
12
13
14
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17
18
19
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26
By month (all years)
J
F
M
A
M
J
J
A
S
O
N
D
By category · available archive
| Missiles | 101 | 39% |
| Surveys | 81 | 31% |
| Quakes | 27 | 10% |
| Exercises | 18 | 7% |
| Cable ops | 13 | 5% |
| Other | 6 | 2% |
| Icebergs | 3 | 1% |
| Nav aids | 3 | 1% |
| Restricted | 2 | 1% |
| Wrecks | 2 | 1% |
| Towing | 2 | 1% |
| Spills | 1 | 0% |
| Debris | 1 | 0% |
Archive · 259 cancelled
- HYDROARC 284/22 · Exercises2022-09-21 → 2022-09-26Hazardous operations 0500Z to 0800Z, 1100Z to 1500Z and 1600Z to 1900Z daily 23 thru 26 sep in area bound by…
- HYDROARC 283/22 · Nav aids2022-09-21 → 2023-10-13Autonomous buoy stations established in: a. 71-53.46N 170-56.43E
- HYDROARC 282/22 · Exercises2022-09-21 → 2022-09-21Hazardous operations 0500Z to 0800Z, 1100Z to 1500Z and 1600Z to 1900Z daily 23 thru 26 sep, alternate 27…
- HYDROARC 271/22 · Surveys2022-09-11 → 2023-10-25Scientific moorings established in: a. 71-47.78N 155-20.81W, top float 15 meters
- HYDROARC 267/22 · Icebergs2022-09-09 → 2022-09-12Icebergs reported in area bound by 81-36.00N 044-42.00E, 81-36.00N 042-42.00E, 81-48.00N 040-00.00E,…
- HYDROARC 258/22 · Surveys2022-09-02 → 2022-09-11Scientific moorings established: a. 71-47.78N 155-20.81W, top float 15 meters
- HYDROARC 233/22 · Surveys2022-08-23 → 2022-09-27Survey operations 28 aug until further notice by M/V geolog dmitriy nalivkin towing 8500 meter long cable in…
- HYDROARC 190/22 · Missiles2022-08-06 → 2022-08-10Hazardous operations, space debris 0530Z to 0730Z daily 09 thru 12 aug in area bound by 82-42.00N…
- HYDROARC 187/22 · Nav aids2022-08-03 → 2022-09-21Autonomous buoy stations established in: a. 71-52.38N 171-00.52E
- HYDROARC 179/22 · Surveys2022-07-30 → 2022-11-02Survey operations 04 aug thru 01 nov by M/V akademik nemchinov towing 9500 meter long cable in areas bound…
- USGS-US6000HMV1 · Quakes2022-05-21 → 2022-05-24Earthquake magnitude 5.8 (mww) in 84.237N 000.585E, depth 10 km at 210701Z may 22
- HYDROARC 36/22 · Missiles2022-03-01 → 2022-03-04Hazardous operations, space debris 2230Z to 0030Z daily 04 thru 08 mar in area bound by 85-19N 162-06W,…
- HYDROARC 27/22 · Missiles2022-02-18 → 2022-02-22Hazardous operations, rocket launching 0700Z to 1300Z daily 20 thru 22 feb in area bound by 82-46.2N…
- HYDROARC 8/22 · Surveys2022-01-17 → 2022-03-25Scientific moorings established: a. BCE-21, in 71-40.38N 154-59.98W, at depth 108 meters, top float 21 meters
- HYDROARC 343/21 · Missiles2021-12-22 → 2021-12-27Hazardous operations, space debris 1300Z to 1500Z daily 27 thru 30 dec in area bound by 85-19N 162-06W,…
- HYDROARC 314/21 · Missiles2021-11-09 → 2021-11-17Hazardous operations, rocket launching 150200Z to 150500Z nov, alternate 170200Z to 170500Z nov in area…
- HYDROARC 218/21 · Missiles2021-09-09 → 2021-09-17Hazardous operations, space debris 1730Z to 1930Z daily 14 thru 17 sep in area bound by 85-19N 162-06W,…
- HYDROARC 186/21 · Surveys2021-08-17 → 2021-11-06Survey operations 21 aug thru 05 nov by M/V academic lazarev, M/V academic primakov, M/V professor logachev,…
- HYDROARC 183/21 · Missiles2021-08-14 → 2021-08-23Hazardous operations, space debris 2200Z to 2330Z daily 19 thru 22 aug in area bound by 85-19N 162-06W,…
- HYDROARC 180/21 · Missiles2021-08-12 → 2021-08-17Hazardous operations, space debris 0156Z to 0313Z daily 17 aug thru 16 sep in area bound by 80-12N 169-20E,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.