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% |
| Containers | 1 | 0% |
| Wrecks | 1 | 0% |
| Mines | 1 | 0% |
Archive · 621 cancelled
- USGS-USP000HF99 · Quakes2010-07-14 → 2010-07-1736 km e of adak, alaska
- NAVAREA XII 286/10 · Exercises2010-06-24 → 2010-06-25Gunnery exercises 251700Z to 251900Z jun within five miles of: a. 55-26N 168-54W
- USGS-USP000HC4V · Quakes2010-04-30 → 2010-05-03Earthquake magnitude 6.3 (mwc) in 60.478N 177.650W, depth 15 km at 302316Z apr 10
- USGS-USP000HC4U · Quakes2010-04-30 → 2010-05-03Earthquake magnitude 6.5 (mwc) in 60.473N 177.877W, depth 12 km at 302311Z apr 10
- NAVAREA XII 172/10 · Exercises2010-04-15 → 2010-04-17Hazardous operations
- NAVAREA XII 164/10 · Exercises2010-04-12 → 2010-04-16Hazardous operations
- USGS-USP000H677 · Quakes2010-01-16 → 2010-01-19Earthquake magnitude 5.5 (mwc) in 51.711N 177.706E, depth 50 km at 162008Z jan 10
- NOAAORR-8175 · Spills2010-01-11 → 2010-01-25Adak island, aleutian isls, alaska
- USGS-USP000H54K · Quakes2009-12-17 → 2009-12-20241 km wsw of adak, alaska
- HYDROPAC 2230/09 · Incidents2009-11-29 → 2009-12-12Man overboard from M/V yuliya star vicinity 63-27N 175-20W at 282245Z nov
- NOAAORR-8144 · Spills2009-11-05 → 2009-11-19Unimak isl., e. aleutians, alaska
- NOAAORR-8141 · Spills2009-10-30 → 2009-11-13Unalaska isl., aleutians, alaska
- USGS-USP000H2FK · Quakes2009-10-07 → 2009-10-10Earthquake magnitude 5.7 (mwc) in 52.157N 178.052E, depth 138 km at 070538Z oct 09
- NAVAREA XII 456/09 · Exercises2009-10-06 → 2009-10-08Gunnery exercises: a. 061500Z to 070400Z oct within five miles of 63-38N 166-33W
- NAVAREA XII 455/09 · Exercises2009-10-04 → 2009-10-07Gunnery exercises 062300Z to 070400Z oct within five miles of 63-38N 166-33W
- NAVAREA XII 433/09 · Nav aids2009-09-23 → 2009-11-07Nga chart 16220 (5TH ed)
- HYDROPAC 1711/09 · Nav aids2009-09-22 → 2009-11-07Nga chart 16220 (5TH ed)
- NOAAORR-8097 · Spills2009-09-17 → 2009-10-01Crowley barge 160-1; quinhagak, alaska
- NAVAREA XII 395/09 · Exercises2009-09-04 → 2009-09-08Gunnery exercises 2100Z to 2300Z daily within 10,000 yards of: a. 55-39N 168-13W on 05 sep
- NAVAREA XII 393/09 · Exercises2009-09-03 → 2009-09-03Gunnery exercises 2100Z to 2300Z daily within 10,000 yards of: a. 57-13N 166-46W on 05 sep
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.