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
| Surveys | 44 | 36% |
| Cable ops | 44 | 36% |
| Other | 13 | 11% |
| Exercises | 10 | 8% |
| Quakes | 5 | 4% |
| Restricted | 3 | 2% |
| Towing | 1 | 1% |
| Spills | 1 | 1% |
Archive · 121 cancelled
- HYDROLANT 2050/07 · Cable ops2007-12-10 → 2007-12-21Cable laying operations in progress until 20 dec by M/V ozgur balikcilik and MEHMETCIK-2 in area bound by…
- HYDROLANT 1982/07 · Cable ops2007-11-29 → 2007-12-04Pipeline operations 032200Z to 040400Z dec southern entrance of strait of istanbul vicinity 41-00N 029-00E
- HYDROLANT 1899/07 · Cable ops2007-11-15 → 2007-12-10Cable laying operations 15 nov to 15 dec by M/V ozgur balikcilik and MEHMETCIK-2 in area bound by 40-33.45N…
- HYDROLANT 1778/07 · Cable ops2007-10-24 → 2007-10-31Seismic survey by in progress until 30 oct M/V piri reis in area bound by 41-00.4N 028-59.2E, 40-56.5N…
- HYDROLANT 1665/07 · Restricted2007-10-01 → 2007-12-17Nga chart 55047 (8TH ed)
- HYDROLANT 1540/07 · Cable ops2007-09-06 → 2007-09-24Seismic survey in progress until 23 sep by M/V EFTALYA-1 towing 50 meter long cable in area bound by…
- HYDROLANT 1197/07 · Exercises2007-07-08 → 2007-07-20Hazardous operations 0500Z to 2000Z daily 09 thru 20 jul in area bound by 41-12.88N 029-07.83E, 41-10.88N…
- HYDROLANT 1183/07 · Cable ops2007-07-06 → 2008-02-09Pipeline operations until further notice in areas bound by: 1. 41-01.61N 029-00.60E, 41-01.58N 029-00.34E,…
- HYDROLANT 1163/07 · Cable ops2007-07-05 → 2007-07-11Cable operations in progress until 10 jul by M/V mehmetcik II in area bound by 40-33.45N 026-58.95E,…
- HYDROLANT 1162/07 · Cable ops2007-07-05 → 2007-08-01Pipeline operations in progress until 31 jul by barge galata in area bound by 40-33.45N 026-58.95E,…
- HYDROLANT 862/07 · Surveys2007-05-22 → 2007-05-30Scientific operations in progress until 29 may by M/V l'atalante in area bound by 40-51.6N 027-27.8E,…
- HYDROLANT 844/07 · Surveys2007-05-20 → 2007-05-22Scientific operations in progress until 29 may by M/V l'atalante in area bound by 40-50.50N 027-01.00E,…
- HYDROLANT 776/07 · Cable ops2007-05-09 → 2007-05-31Pipeline operations in progress until 30 may by M/V galata in area bound by 40-33.45N 026-58.95E, 40-32.38N…
- HYDROLANT 745/07 · Surveys2007-05-03 → 2007-05-20Scientific operations 05 may thru 17 jun by M/V l'atalante in area bound by 40-44.0N 027-20.5E, 40-56.5N…
- HYDROLANT 653/07 · Cable ops2007-04-20 → 2007-05-09Pipeline operations in progress until 08 may by M/V galata in area bound by 40-33.4N 026-58.9E, 40-32.4N…
- HYDROLANT 648/07 · Surveys2007-04-19 → 2007-04-21Scientific operations in progress until 20 apr by M/V arar in: a. 41-13.5N 029-08.0E
- HYDROLANT 536/07 · Surveys2007-04-04 → 2007-04-25Underwater operations in progress until 24 apr by M/V DUZGIT-3 in area bound by 40-58.5N 028-54.7E, 40-58.6N…
- HYDROLANT 525/07 · Cable ops2007-04-02 → 2007-04-07Seismic survey in progress until 06 apr by M/V balikli 1 between kumkapi (40-59.8N 028-58.0E) and harem…
- HYDROLANT 467/07 · Surveys2007-03-22 → 2007-03-29Survey operations 26 thru 28 mar by M/V arar in area bound by 41-13.5N 029-08.0E, 41-09.3N 029-08.3E,…
- HYDROLANT 465/07 · Restricted2007-03-22 → 2007-03-25Navigation prohibited 232159Z to 240400Z and 242100Z to 242300Z mar between 40-57.6N 028-58.3E and 41-14.0N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.