Bering Sea
IHO sea area 55 · -180° to 180° E, 51° to 67° N
- in force
- 4
- last 12 months
- 19
- archive messages
- 626
- categories
- 15
What the archive shows
626 messages are recorded since 1979-11-08 for the Bering Sea. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.
Spills accounts for 166 of 626 recorded messages (27%), 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 2025-06-10 06:19ZIn the Bering Sea near Alaska, high frequency radio services at Shemya remote site (52-43N 174-07E) are off air.
In force now · 4
- HYDROPAC 2700/26 · Surveys2026-09-17Russia establishes a scientific mooring at seven metres depth in Bering Strait at 66-19.59N 168-57.01W, cancelling a previous warning.
- NAVAREA XII 639/26 · Surveys2026-09-17Scientific moorings at 15 meters depth are established in the Bering Strait, Alaska, at two locations, and a previous warning is cancelled.
- NAVAREA XII 98/26 · Nav aids2026-02-17The US Coast Guard remote communication facility at Shemya, Alaska, has inoperative high-frequency transmit and receive services.
- NAVAREA XII 344/25 · Nav aids2025-06-10In the Bering Sea near Alaska, high frequency radio services at Shemya remote site (52-43N 174-07E) are off air.
Longest in force
- NAVAREA XII 344/25 · Nav aids2025-06-10In the Bering Sea near Alaska, high frequency radio services at Shemya remote site (52-43N 174-07E) are off air.
- NAVAREA XII 98/26 · Nav aids2026-02-17The US Coast Guard remote communication facility at Shemya, Alaska, has inoperative high-frequency transmit and receive services.
- HYDROPAC 2700/26 · Surveys2026-09-17Russia establishes a scientific mooring at seven metres depth in Bering Strait at 66-19.59N 168-57.01W, cancelling a previous warning.
- NAVAREA XII 639/26 · Surveys2026-09-17Scientific moorings at 15 meters depth are established in the Bering Strait, Alaska, at two locations, and a previous warning is cancelled.
By year
79
85
86
87
88
89
90
91
92
93
94
95
96
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
| Spills | 166 | 27% |
| Exercises | 162 | 26% |
| Quakes | 127 | 20% |
| Nav aids | 54 | 9% |
| Other | 40 | 6% |
| Surveys | 27 | 4% |
| Incidents | 26 | 4% |
| Cable ops | 9 | 1% |
| Derelicts | 6 | 1% |
| Missiles | 3 | 0% |
| Debris | 2 | 0% |
| Towing | 1 | 0% |
| Wrecks | 1 | 0% |
| Containers | 1 | 0% |
| Mines | 1 | 0% |
Archive · 622 cancelled
- USGS-US2000A21G · Quakes2017-07-28 → 2017-07-31Earthquake magnitude 5.5 (mww) in 54.303N 169.301E, depth 10 km at 280239Z jul 17
- NAVAREA XII 312/17 · Surveys2017-07-19 → 2019-04-05Scientific moorings established: a. NB-17T, in 65-03.88N 169-38.05W, at depth 52 meters, top float 27 meters
- HYDROPAC 2463/17 · Quakes2017-07-17 → 2017-07-18An earthquake has occurred at 172334Z jul with a preliminary magnitude of 7.4 in vicinity 54-12N 169-12E
- USGS-US20009X42 · Quakes2017-07-17 → 2017-07-20Earthquake magnitude 7.7 (mww) in 54.443N 168.857E, depth 10 km at 172334Z jul 17
- USGS-US20009WWJ · Quakes2017-07-17 → 2017-07-20Earthquake magnitude 6.3 (mww) in 54.580N 168.648E, depth 9 km at 171105Z jul 17
- NAVAREA XII 301/17 · Surveys2017-07-11 → 2018-08-17Scientific moorings established: a. A3-17, in 66-19.59N 168-57.13W at 56 meters, top float 15 meters
- HYDROARC 139/17 · Surveys2017-07-11 → 2019-04-05Scientific moorings established: a. A3-17, in 66-19.59N 168-57.13W at 56 meters, top float 15 meters
- NAVAREA XII 298/17 · Exercises2017-07-10 → 2017-07-14Gunnery exercises 132130Z to 140001Z jul in area within five miles of 55-48N 169-24W
- HYDROPAC 2323/17 · Missiles2017-07-04 → 2017-07-12Missile operations 2200Z to 0800Z commencing daily 09 thru 11 jul in areas bound by: a. 58-03-48N…
- NOAAORR-9526 · Spills2017-07-03 → 2017-07-17Dillingham, ak, USA
- NOAAORR-9527 · Spills2017-07-03 → 2017-07-17FV N11; dillingham, ak, USA
- NOAAORR-9525 · Spills2017-07-03 → 2017-07-17Dillingham, ak, USA
- USGS-US20009JD6 · Quakes2017-06-02 → 2017-06-05200 km nw of attu station, alaska
- NOAAORR-9500 · Spills2017-05-30 → 2017-06-13On may 30, 2017, the uscg observed a rainbow/grey sheen in adak small boat harbor resulting from a diesel…
- NOAAORR-9491 · Spills2017-05-15 → 2017-05-29Crowley barge dbl 165-1 grounding; quinhagak, ak
- USGS-US10008R2H · Quakes2017-05-10 → 2017-05-13127 km w of adak, alaska
- USGS-US10008QHU · Quakes2017-05-08 → 2017-05-11135 km w of adak, alaska
- NAVAREA XII 168/17 · Exercises2017-04-24 → 2017-04-25Gunnery exercises 252100Z to 252300Z apr in area within five miles of 55-40.58N 168-42.14W
- USGS-US20008VHL · Quakes2017-03-29 → 2017-04-0181 km nne of ust’-kamchatsk staryy, russia
- NOAAORR-9452 · Spills2017-03-07 → 2017-03-21Unimak pass, alaska
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.