Sea of Marmara

IHO sea area 29 · 26° to 30° E, 40° to 41° N

in force
0
last 12 months
1
archive messages
121
categories
8

What the archive shows

121 messages are recorded since 1979-11-15 for the Sea of Marmara. 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, Surveys tie for the largest recorded count, with 44 messages each.

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 · 0

Nothing in force in this sea right now.

By year

79
99
00
02
03
05
06
07
08
09
10
11
12
13
14
16
17
18
19
20
21
22
25
26

By month (all years)

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

By category · available archive

Cable ops4436%
Surveys4436%
Other1311%
Exercises108%
Quakes54%
Restricted32%
Towing11%
Spills11%

Ports on this sea · 18

Busiest first by annual vessel calls (IMF PortWatch); each port page shows the warnings within 60 nm, its World Port Index profile and monthly port calls.

All 18 ports on the Sea of Marmara →

Archive · 121 cancelled

  1. HYDROLANT 1720/26 · Cable ops2026-08-31 → 2026-08-31
    Cable operations until further notice by cableship sophie germain in area bound by 40-40.27N 027-15.72E,…
  2. USGS-US7000PUFS · Quakes2025-04-23 → 2025-04-26
    24 km se of marmara ereğlisi, turkey
  3. HYDROLANT 6/22 · Cable ops2022-01-01 → 2022-01-19
    Cable operations 030001Z to 190001Z jan by cableship raymond croze with submersible in areas bound by: a.…
  4. HYDROLANT 3127/21 · Cable ops2021-12-22 → 2022-01-04
    Cable operations 26 dec thru 03 jan 22 by cableship raymond croze with submersible in 41-11.75N 029-06.10E
  5. HYDROLANT 703/21 · Cable ops2021-03-12 → 2021-03-17
    Cable operations in progress until 22 mar by cableship antonio meucci in area bound by 40-44.50N 027-51.92E,…
  6. HYDROLANT 593/21 · Cable ops2021-02-28 → 2021-03-10
    Cable operations 02 thru 09 mar by cableship antonio meucci in area bound by 40-44.50N 027-51.92E, 40-46.36N…
  7. HYDROLANT 3404/20 · Surveys2020-11-05 → 2020-12-01
    Underwater operations in progress until 30 nov by M/V detek salvor in position 41-01.3N 029-00.0E
  8. HYDROLANT 2749/20 · Surveys2020-09-07 → 2020-11-05
    Underwater operations 09 sep thru 09 nov by M/V detek salvor in 41-01.03N 029-00.00E
  9. HYDROLANT 2511/20 · Surveys2020-08-14 → 2020-09-11
    Underwater operations 16 aug thru 10 sep by M/V derinsu in area bound by 40-32.24N 026-54.78E, 40-33.25N…
  10. HYDROLANT 2158/20 · Surveys2020-07-07 → 2020-07-20
    Underwater operations 10 thru 25 jul by M/V derinsu in area bound by 40-32.24N 026-54.78E, 40-25.55N…
  11. HYDROLANT 1482/20 · Surveys2020-04-30 → 2020-05-08
    Underwater operations 01 may thru 17 jun by c/s antonio meucci in area bound by 40-29.84N 026-56.39E,…
  12. HYDROLANT 1470/20 · Surveys2020-04-30 → 2020-04-30
    Underwater operations 01 thru 20 may, and 17 jun by c/s antonio meucci in area bound by 40-29.84N…
  13. HYDROLANT 116/20 · Surveys2020-01-13 → 2020-06-19
    Underwater operations in progress until 31 jul by M/V derinsu in area bound by 40-25.78N 027-04.67E,…
  14. HYDROLANT 3419/19 · Surveys2019-11-06 → 2019-12-23
    Underwater operations in progress until 31 jul 20 by M/V derinsu in area bound by 40-25.78N 027-04.67E,…
  15. HYDROLANT 3341/19 · Surveys2019-10-31 → 2019-11-05
    Underwater operations in progress until 31 jul 20 by M/V derinsu in area bound by 40-25.78N 027-04.67E,…
  16. HYDROLANT 2969/19 · Surveys2019-09-28 → 2019-11-01
    Survey operations 30 sep thru 31 oct by M/V marmara and M/V anadolu in area bound by 40-47.70N 028-15.65E,…
  17. USGS-US70005LKL · Quakes2019-09-26 → 2019-09-29
    17 km ese of marmara ere?lisi, turkey
  18. HYDROLANT 2922/19 · Surveys2019-09-25 → 2019-11-01
    Survey operations 30 sep thru 31 oct by M/V tubitak marmara and M/V tubitak anadolu in area bound by…
  19. HYDROLANT 2255/19 · Exercises2019-07-24 → 2019-08-05
    Hazardous operations 291000Z to 291400Z, 0600Z to 2030Z daily 30, 31 jul, 010600Z to 012030Z aug and 0600Z…
  20. HYDROLANT 2074/19 · Surveys2019-07-10 → 2019-07-22
    Survey operations in progress until 25 jul by M/V denar in area bound by 40-19.2N 026 35.1E, 40-20.2N…

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