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 ops | 44 | 36% |
| Surveys | 44 | 36% |
| Other | 13 | 11% |
| Exercises | 10 | 8% |
| Quakes | 5 | 4% |
| Restricted | 3 | 2% |
| Towing | 1 | 1% |
| Spills | 1 | 1% |
Archive · 121 cancelled
- HYDROLANT 2020/19 · Surveys2019-07-04 → 2019-08-16Survey operations in progress thru 15 aug by M/V oruc reis, M/V ataman and M/V cengiz han in area bound by…
- HYDROLANT 1306/19 · Surveys2019-04-28 → 2019-07-26Underwater operations in progress until 25 jul by M/V ay yildiz ihi and M/V derinsu in area bound by…
- HYDROLANT 1294/19 · Surveys2019-04-26 → 2019-04-28Underwater operations in progress until 25 jul by M/V ayyildiz ihi and M/V derinsu in area bound by…
- HYDROLANT 1139/19 · Surveys2019-04-11 → 2019-07-04Survey operations in progress thru 15 jul by M/V oruc reis, M/V ataman and M/V cengiz han in area bound by…
- HYDROLANT 1086/19 · Surveys2019-04-05 → 2019-04-11Survey operations 07 apr thru 15 jul by M/V oruc reis, M/V ataman and M/V cengiz han in area bound by…
- HYDROLANT 864/19 · Surveys2019-03-18 → 2019-04-02Underwater operations 19 mar thru 01 apr by M/V derinsu in area bound by 40-25.78N 027-04.65E, 40-31.42N…
- HYDROLANT 780/18 · Cable ops2018-03-05 → 2018-07-04Pipeline operations 07 mar until further notice by M/V topaz commander in area bound by 40-25.73N…
- HYDROLANT 4063/17 · Cable ops2017-12-15 → 2017-12-24Underwater operations in progress until further notice by cableship antonio meucci in area bound by…
- HYDROLANT 4045/17 · Cable ops2017-12-14 → 2017-12-15Underwater operations in progress until further notice by cableship antonio meucci in area bound by…
- HYDROLANT 3876/17 · Surveys2017-11-30 → 2017-12-14Underwater operations in progress until further notice by barge sk 1200 and M/V sapura koncana conquest in…
- HYDROLANT 3452/17 · Cable ops2017-10-25 → 2017-11-08Underwater operations 01 nov 17 thru 15 jan 18 by cableship antonio meucci in area bound by 40-19.18N…
- HYDROLANT 2742/17 · Surveys2017-09-07 → 2017-12-01Underwater operations in progress until 30 nov by barge sk 1200, M/V sk conquest, and M/V detek salvor in…
- HYDROLANT 2075/17 · Surveys2017-07-05 → 2017-09-07Underwater operations 10 jul thru 30 nov by barge sk 1200, M/V sapura koncana conquest and M/V francis…
- HYDROLANT 3107/16 · Cable ops2016-11-21 → 2016-11-23Cable operations 23 thru 27 nov by cableship antonio meucci in area bound by 40-51.76N 028-41.29E, 40-49.96N…
- HYDROLANT 1643/16 · Cable ops2016-06-30 → 2016-07-14Seismic survey 09 thru 16 jul by M/V barbaros hayreddin pasa, M/V bravo supporter and M/V kofso in area…
- HYDROLANT 1642/16 · Cable ops2016-06-30 → 2016-07-10Seismic survey 01 thru 09 jul by M/V barbaros hayreddin pasa, M/V bravo supporter and M/V kofso in area…
- HYDROLANT 1493/16 · Cable ops2016-06-15 → 2016-07-03Seismic survey 16 jun thru 02 jul by M/V barbaros hayreddin pasa, M/V bravo supporter and M/V kofso in area…
- HYDROLANT 1338/16 · Cable ops2016-06-02 → 2016-06-15Seismic survey 02 thru 20 jun by M/V barbaros hayreddin pasa, M/V bravo supporter and M/V kofso in area…
- HYDROLANT 1218/16 · Cable ops2016-05-23 → 2016-06-02Seismic survey in progress until 05 jun by M/V barbaros hayreddin pasa, M/V bravo supporter and M/V kofso in…
- HYDROLANT 1182/16 · Cable ops2016-05-19 → 2016-07-12Cable operations in progress until 11 jul by cableship astrea in area bound by 40-20.23N 026-36.25E,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.