Survey operations in progress until 22 feb by M/V tcg cubuklu in areas bound by: a. 40-55.4N 028-59.1E,…
Sea of Marmara · HYDROLANT 469/13
What this record establishes
Archived notice · 2013-02-23 00:01Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA III 80/13 201200Z FEB 13.. Issued 2013-02-20 12:37Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Sea of Marmara. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Current notices and reporting history in the Sea of Marmara →
- issued
- 2013-02-20 12:37Z
- status
- Archived notice
- authority
- NAVAREA III 80/13 201200Z FEB 13.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Sea of Marmara
- position
- 40.865, 29.057
- vessel
- M/V TCG CUBUKLU · 8 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SEA OF MARMARA.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 22 FEB
BY M/V TCG CUBUKLU IN AREAS BOUND BY:
A. 40-55.4N 028-59.1E, 40-55.6N 029-00.1E,
40-57.2N 028-59.6E, 40-57.0N 028-58.6E.
B. 40-52.3N 029-02.6E, 40-50.6N 029-02.4E,
40-49.3N 029-05.9E, 40-51.4N 029-06.3E.
WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 23 FEB 13.
Reading this warning
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · survey operations
135 within 180 nm since 1999 · 9 in the last 12 months · 5 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- 1- drilling operations by yildirim rig (imo 9705469, mmsi 271053959), supported by ertugrul bey, aybuke,…2026-09-12
- Drilling operations by fatih platform (imo 95037702026-09-03
- Drilling operations by yavuz rig (imo 9503768, mmsi 271046765) supported by osman bey, aybuke, florya,…2026-08-27
- Drilling operations by the kanuni platform (imo 95412032026-08-17
- 1- drilling operations by abdulhamid han rig (imo 97050932026-08-17
- 1- drilling operations by yildirim rig (imo 9705469, mmsi 271053959), supported by ertugrul bey, aybuke,…2026-08-11
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
- Drilling operations by fatih platform (imo 9503770Surveys · 93.2 nm
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-03 02:05Z; source collection times vary.
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.