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,…
Sea of Marmara · HYDROLANT 2969/19
What this record establishes
Archived notice · 2019-11-01 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 1084/19 271206Z SEP 19.. Issued 2019-09-28 00:09Z. 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
- 2019-09-28 00:09Z
- status
- Archived notice
- authority
- NAVAREA III 1084/19 271206Z SEP 19.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Sea of Marmara
- position
- 40.808, 28.285
- vessels
- M/V ANADOLUM/V MARMARA · 2 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SEA OF MARMARA. TURKEY. DNC 10. 1. 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, 40-49.32N 028-15.68E, 40-49.29N 028-18.52E, 40-47.67N 028-18.49E. ONE MILE BERTH REQUESTED. 2. CANCEL THIS MSG 01 NOV 19.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- 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
122 within 180 nm since 1999 · 5 in the last 12 months · 2 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.
- 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 abdulhamid han (imo 97050932026-07-28
- Drilling operations by yavuz platform (imo 9503768, mmsi 271046765) supported by osman bey, aybuke, florya,…2026-06-26
- Drilling operations by the kanuni platform (imo 95412032026-06-15
- Underwater operations 28 oct 23 thru 16 jan 24 by M/V faith, M/V altan ilhan and M/V muruvvet ilhan in area…2023-10-25
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 · 118.4 nm
Worldwide in the collected sources
55 survey operations listed in force · see all
Record snapshot 2026-10-02 04:12Z; 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.