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
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
| 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 216/13 · Surveys2013-10-10 → 2014-07-10Chukchi Sea
- HYDROARC 211/13 · Cable ops2013-10-07 → 2013-10-09Seismic survey in progress until further notice by M/V zefir I towing 10000 meter long cable along trackline…
- HYDROARC 209/13 · Cable ops2013-10-05 → 2013-10-07Seismic survey in progress until further notice by M/V zefir I towing 10000 meter long cable along trackline…
- HYDROARC 190/13 · Cable ops2013-09-25 → 2013-10-02Seismic survey in progress until further notice by M/V zefir 1 towing 10000 meter long cable along trackline…
- HYDROARC 154/13 · Missiles2013-09-09 → 2013-09-13Hazardous operations 2315Z to 0001Z commencing daily 11 and 12 sep within 27 miles of 78-16N 163-55E
- HYDROARC 153/13 · Cable ops2013-09-06 → 2013-09-15Seismic survey 08 sep until further notice by M/V zefyr 1 towing 9000 meter long cable along trackline…
- HYDROARC 127/13 · Wrecks2013-08-23 → 2015-06-07Laptev Sea
- HYDROARC 13/13 · Missiles2013-03-22 → 2013-03-291 hazardous operations 252230Z to 260430Z, 262100Z to 270300Z, 271930Z to 280130Z and 290530 to 291130Z mar…
- HYDROARC 7/13 · Missiles2013-02-02 → 2013-02-07Hazardous operations 0400 to 1400Z daily 02 thru 20 feb within 160 miles of 73-40N 142-40W
- HYDROARC 4/13 · Missiles2013-01-14 → 2013-01-16Hazardous operations 1430Z to 1700Z daily 15 and 16 jan within 27 miles of 78-16N 163-55E
- HYDROARC 2/13 · Missiles2013-01-13 → 2013-01-14Hazardous operations 1600Z to 1610Z daily 15 and 16 jan within 27 miles of 78-16N 163-55E
- USGS-USP000JWXK · Quakes2012-12-13 → 2012-12-16Earthquake magnitude 5.5 (mww) in 80.804N 121.383E, depth 10 km at 132303Z dec 12
- HYDROARC 255/12 · Missiles2012-12-03 → 2012-12-08Hazardous operations 2015Z to 2115Z daily 07 and 08 dec within 27 miles of 78-16N 163-55E
- HYDROARC 227/12 · Surveys2012-10-29 → 2013-12-01B. 75-00.171N 162-00.182W, at depth 1971 meters, top float 185 meters
- HYDROARC 212/12 · Surveys2012-10-14 → 2013-10-14B. 72-48.008N 158-24.756W, at depth 321 meters
- HYDROARC 206/12 · Surveys2012-10-11 → 2013-10-01Cancel this msg 01 oct 13
- HYDROARC 179/12 · Cable ops2012-09-17 → 2012-10-02Seismic survey in progress until further notice by M/V geolog dmitriy nalivkin towing 8000 meter long cable…
- HYDROARC 161/12 · Cable ops2012-09-06 → 2012-09-17Seismic survey 09 sep until further notice by M/V geolog dmitriy nalivkin towing 8000 meter long cable in…
- HYDROARC 160/12 · Surveys2012-09-06 → 2016-09-04B. bgos-d 73-59.64N 139-58.95W, at depth 3504 meters
- HYDROARC 148/12 · Surveys2012-08-29 → 2013-11-01B. 73-48.733N 157-29.209W, at depth 3751 meters
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.