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.

In force now · 1

  1. HYDROARC 191/26 · Surveys2026-08-28
    Survey operations in Norwegian Sea by Amazon Conqueror towing twelve 10,000-meter cables, seven mile berth requested.

Longest in force

  1. HYDROARC 191/26 · Surveys2026-08-28
    Survey operations in Norwegian Sea by Amazon Conqueror towing twelve 10,000-meter cables, seven mile berth requested.

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 ops13427%
Surveys10922%
Missiles8517%
Exercises6212%
Nav aids316%
Quakes173%
Ordnance133%
Debris122%
Other122%
Containers92%
Incidents61%
Restricted41%
Mines10%
Derelicts10%
Icebergs10%

Archive · 496 cancelled

  1. HYDROLANT 277/07 · Exercises2007-02-20 → 2007-03-03
    Hazardous operations 260001Z feb to 022359Z mar in area bound by 69-53N 013-07E, 69-10N 014-49E, 69-36N…
  2. HYDROLANT 1722/06 · Exercises2006-09-21 → 2006-09-25
    Hazardous operations in progress thru 24 sep within 40 miles of 69-53N 015-00E
  3. HYDROLANT 1681/06 · Exercises2006-09-13 → 2006-09-25
    Hazardous operations 13 thru 24 sep
  4. HYDROLANT 1441/06 · Exercises2006-08-03 → 2006-08-13
    Hazardous operations in progress thru 12 aug within five miles of 69-17.7N 016-01.2E
  5. HYDROLANT 1400/06 · Cable ops2006-07-28 → 2006-08-24
    Seismic survey in progress until further notice by M/V geolog dmitriy nalivkin towing 9000 meter long cable…
  6. HYDROLANT 1365/06 · Cable ops2006-07-21 → 2006-09-06
    Seismic survey in progress until further notice by M/V western monarch towing ten three mile long cables in…
  7. HYDROLANT 1030/06 · Exercises2006-05-28 → 2006-06-04
    Hazardous operations 29 may thru 03 jun in area bound by 69-01.0N 015-27.5E, 69-01.0N 014-32.0E, 69-29.0N…
  8. HYDROLANT 580/06 · Other2006-03-23 → 2006-06-07
    Pipelaying operations in progress until further notice by M/V laybarge 200 along trackline joining 58-22N…
  9. HYDROLANT 402/06 · Exercises2006-02-26 → 2006-03-04
    Hazardous operations 0800Z to 2000Z daily 27 feb thru 04 mar in area bound by 69-17.1N 016-10.5E, 69-25.0N…
  10. HYDROLANT 1934/05 · Other2005-10-23 → 2005-11-13
    Hazardous operatoins 24 oct thru 12 nov in area bound by 69-44N 012-51E, 71-41N 009-20E, 72-38N 016-02E,…
  11. HYDROLANT 1897/05 · Exercises2005-10-17 → 2005-10-23
    Hazardous operations 18 thru 22 oct in area bound by 69-01N 015-28E, 69-01N 014-32E, 69-29N 014-32E, 69-29N…
  12. HYDROLANT 1372/05 · Cable ops2005-07-28 → 2005-08-31
    Seismic survey in progress until further notice by M/V northern explorer towing 4.6 mile long cable in area…
  13. HYDROLANT 1365/05 · Restricted2005-07-27 → 2005-08-01
    Navigation prohibited until further notice within 1000 meters of 61-02.77N 001-45.43E
  14. USGS-USP000DVWR · Quakes2005-07-25 → 2005-07-28
    51 km ene of olonkinbyen, svalbard and jan mayen
  15. HYDROLANT 539/05 · Debris2005-03-24 → 2005-03-26
    Fishing nets marked by buoy floats adrift in 61-07.0N 001-49.4E
  16. HYDROLANT 1924/04 · Exercises2004-12-01 → 2004-12-23
    Hazardous operations 04 thru 22 dec within 76 miles of 70-23N 015-13E
  17. HYDROLANT 1241/04 · Incidents2004-07-24 → 2004-09-08
    Vessel, two persons on board, in need of assistance in 63-16.2N 000-30.1W
  18. HYDROLANT 1068/04 · Cable ops2004-06-24 → 2004-07-27
    Seismic survey in progress until further notice by M/V ramform valiant towing ten 3000 meter long cables in…
  19. USGS-USP000CSGU · Quakes2004-04-14 → 2004-04-17
    38 km ene of olonkinbyen, svalbard and jan mayen
  20. HYDROLANT 1407/03 · Ordnance2003-07-22 → 2003-07-28
    Underwater ordnance detonation in progress until further notice in 61-04.1N 001-25.4E

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.

Norwegian Sea — navigational warnings — archive page 23 · seahazards