North Sea

IHO sea area 4 · -4° to 12° E, 51° to 61° N

in force
1
last 12 months
6
since 1997
4,730
categories
11

In force now · 1

  1. HYDROLANT 1496/26 · Surveys2026-08-03
    Survey operations are underway in the North Sea near Norway by the vessel Ramform Hyperion towing ten 2740-meter cables, requesting a three-mile berth.

Longest in force

  1. HYDROLANT 1496/26 · Surveys2026-08-03
    Survey operations are underway in the North Sea near Norway by the vessel Ramform Hyperion towing ten 2740-meter cables, requesting a three-mile berth.

By year

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
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

By category · since 1997

Nav aids2,50253%
Other66814%
Cable ops65814%
Surveys58312%
Wrecks1704%
Containers441%
Derelicts341%
Exercises321%
Debris291%
Mines90%
Missiles10%

Archive · 4,729 cancelled

  1. HYDROLANT 2898/15 · Nav aids2015-11-24 → 2015-11-25
    Out skerries light 60-25.5N 000-43.7W unreliable
  2. HYDROLANT 2868/15 · Nav aids2015-11-21 → 2015-11-23
    Duncansby head light 58-38.6N 003-01.5W unlit
  3. HYDROLANT 2867/15 · Nav aids2015-11-21 → 2015-11-24
    Out skerries light 60-25.5N 000-43.7W unlit
  4. HYDROLANT 2864/15 · Cable ops2015-11-21 → 2015-11-27
    Underwater operations in progress until further notice by cableship pierre de fermat with submersible…
  5. HYDROLANT 2863/15 · Nav aids2015-11-21 → 2017-04-07
    Longstone light, fl w 20 sec 23 meters 18 miles, established in 55-38.6N 001-36.7W
  6. HYDROLANT 2855/15 · Nav aids2015-11-20 → 2015-11-23
    RACON at newarp buoy 52-48.4N 001-55.7E inoperative
  7. HYDROLANT 2832/15 · Nav aids2015-11-17 → 2015-11-18
    Out skerries light 60-25.5N 000-43.7W unreliable
  8. HYDROLANT 2820/15 · Derelicts2015-11-16 → 2015-11-19
    Derelict 13 meter S/V adrift vicinity 58-18.4N 001-44.0W
  9. HYDROLANT 2814/15 · Nav aids2015-11-15 → 2015-11-17
    Out skerries light 60-25.5N 000-43.7W unlit
  10. HYDROLANT 2804/15 · Nav aids2015-11-14 → 2015-11-21
    Longstone light, fl w 20 sec 23 meters 18 miles, established in 55-38.6N 001-36.7W
  11. HYDROLANT 2786/15 · Nav aids2015-11-13 → 2015-11-15
    Meteorological mast 56-26.4N 002-14.5W unlit
  12. HYDROLANT 2778/15 · Nav aids2015-11-12 → 2015-11-13
    Longstone lightship 55-38.6N 001-36.5W light unreliable
  13. HYDROLANT 2754/15 · Other2015-11-09 → 2015-11-26
    All navigational aids at platforms inoperative: a. 49/17-CD, 53-25.4N 002-22.6E
  14. HYDROLANT 2752/15 · Nav aids2015-11-09 → 2015-11-09
    All navigational aids at platform 49/17-GD, 53-26.9N 002-15.3E inoperative
  15. HYDROLANT 2710/15 · Nav aids2015-11-03 → 2015-11-03
    All navigational aids at platform 49/26-CP, 53-05.9N 002-09.7E inoperative
  16. HYDROLANT 2699/15 · Nav aids2015-11-02 → 2015-11-13
    Fog signal at platform 44/26A-A, 54-03.6N 002-04.7E inoperative
  17. HYDROLANT 2698/15 · Nav aids2015-11-02 → 2015-11-09
    All navigational aids at platform 49/17-HD, 53-29.9N 002-19.5E inoperative
  18. HYDROLANT 2697/15 · Nav aids2015-11-02 → 2015-11-03
    All navigational aids at platform 49/26-CP, 53-05.9N 002-09.7E unreliable
  19. HYDROLANT 2601/15 · Nav aids2015-10-19 → 2015-11-08
    RACON at rattray head light 57-36.6N 001-49.0W inoperative
  20. HYDROLANT 2592/15 · Surveys2015-10-17 → 2015-10-20
    Underwater operations in progress until further notice by barge taklift 4 in 53-00.5N 002-40.0E

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