Norwegian Sea
IHO sea area 6 · -14° to 26° E, 61° to 77° N
- in force
- 1
- last 12 months
- 13
- archive messages
- 497
- categories
- 15
What the archive shows
497 messages are recorded since 1999-04-21 for the Norwegian 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.
Cable ops accounts for 134 of 497 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 2026-08-28 09:28ZSurvey operations in Norwegian Sea by Amazon Conqueror towing twelve 10,000-meter cables, seven mile berth requested.
In force now · 1
Longest in force
By year
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
| Cable ops | 134 | 27% |
| Surveys | 109 | 22% |
| Missiles | 85 | 17% |
| Exercises | 62 | 12% |
| Nav aids | 31 | 6% |
| Quakes | 17 | 3% |
| Ordnance | 13 | 3% |
| Other | 12 | 2% |
| Debris | 12 | 2% |
| Containers | 9 | 2% |
| Incidents | 6 | 1% |
| Restricted | 4 | 1% |
| Derelicts | 1 | 0% |
| Mines | 1 | 0% |
| Icebergs | 1 | 0% |
Archive · 496 cancelled
- HYDROLANT 978/11 · Cable ops2011-06-12 → 2011-07-02Seismic survey in progress until further notice by M/V western regent towing six 3800 meter long cables in…
- HYDROLANT 660/11 · Cable ops2011-04-19 → 2011-06-12Seismic survey in progress until further notice by M/V western regent towing six 3800 meter long cables in…
- USGS-USP000HTT3 · Quakes2011-01-29 → 2011-02-0175 km e of olonkinbyen, svalbard and jan mayen
- HYDROARC 126/10 · Missiles2010-12-03 → 2010-12-31Hazardous operations in progress until 30 dec: a. within two miles of 69-18N 016-01E
- HYDROLANT 2252/10 · Missiles2010-11-25 → 2010-12-13Hazardous operations 0200Z to 1200Z daily 27 nov thru 13 dec: a. within two miles of 69-18N 016-01E
- HYDROLANT 1676/10 · Cable ops2010-09-05 → 2010-10-12Seismic survey in progress until further notice by M/V western regent towing ten 4500 meter long cables in…
- HYDROLANT 1019/10 · Cable ops2010-06-03 → 2010-06-30Seismic survey in progress until futher notice by M/V cgg amadeus towing eight 4000 meter long cables in…
- USGS-USP000H1R2 · Quakes2009-09-21 → 2009-09-2440 km ene of olonkinbyen, svalbard and jan mayen
- HYDROLANT 1805/09 · Cable ops2009-09-20 → 2009-10-10Seismic survey in progress until further notice by M/V geco triton towing eight four mile long cables in…
- HYDROLANT 1731/09 · Cable ops2009-09-11 → 2009-09-21Seismic survey in progress until 010600Z oct by M/V ramform viking towing 12 4800 meter long cables in area…
- USGS-USP000H0NU · Quakes2009-08-20 → 2009-08-23Earthquake magnitude 6.0 (mwc) in 72.200N 000.944E, depth 6 km at 200635Z aug 09
- HYDROLANT 1540/09 · Cable ops2009-08-14 → 2009-11-10Seismic survey in progress until further notice by M/V ocean explorer towing 16 4800 meter long cables in…
- HYDROLANT 1539/09 · Cable ops2009-08-14 → 2009-09-18Seismic survey in progress until further notice by M/V cgg fohn towing six 6000 meter long cables in area…
- HYDROLANT 1497/09 · Cable ops2009-08-08 → 2009-09-07Seismic survey in progress until further notice by M/V ramform viking towing 16 4800 meter long cables in…
- HYDROLANT 1475/09 · Cable ops2009-08-05 → 2009-08-14Seismic survey in progress until further notice by M/V cgg fohn towing six 6000 meter long cables in area…
- HYDROLANT 1172/09 · Cable ops2009-06-24 → 2009-08-08Seismic survey in progress until further notice by M/V ramform viking towing 16 4900 meter long cables in…
- HYDROLANT 1160/09 · Cable ops2009-06-22 → 2009-08-05Seismic survey in progress until further notice by M/V cgg fohn towing six 3000 meter long cables in area…
- HYDROLANT 819/09 · Cable ops2009-05-03 → 2009-06-17Seismic survey in progress until further notice by M/V bos angler towing six 5000 meter long cables in area…
- HYDROLANT 817/09 · Cable ops2009-05-02 → 2009-06-24Seismic survey in progress until further notice by M/V ramform viking towing 16 4800 meter long cables in…
- HYDROLANT 808/09 · Cable ops2009-05-01 → 2009-05-02Seismic survey in progress until further notice by M/V ramform viking towing 16 4800 meter long cables in…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.