Underwater operations in progress until 27 jul by M/V eko and M/V seys 1 in area bound by 47-00.05N…
Sea of Azov · HYDROLANT 890/11
What this record establishes
Archived notice · 2011-07-28 00:00Z
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 247/11 271149Z MAY 11.. Issued 2011-05-27 12:48Z. 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 Azov. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
- issued
- 2011-05-27 12:48Z
- status
- Archived notice
- authority
- NAVAREA III 247/11 271149Z MAY 11.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Sea of Azov
- position
- 46.831, 38.120
- vessels
- M/V EKO · 6 messagesM/V SEYS 1
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
AZOV SEA. 1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 27 JUL BY M/V EKO AND M/V SEYS 1 IN AREA BOUND BY 47-00.05N 038-21.00E, 47-03.80N 038-21.30E, 47-01.65N 038-30.40E, 46-43.85N 038-16.15E, 46-41.25N 037-44.90E, 46-42.15N 037-35.30E. 2. CANCEL THIS MSG 28 JUL.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- 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.
- 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
45 within 180 nm since 2002 · 0 in the last 12 months · 0 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.
- Underwater operations in progress until 15 jun in area bound by 45-11.93N 036-27.58E, 45-12.05N 036-28.05E,…2017-04-04
- Underwater operations in progress until 31 dec by M/V svyatoy pavel taganrogskiy and M/V typhoon within 1100…2015-12-02
- Survey operations in progress until 30 nov by M/V eko and M/V anna 1 towing 300 meter long cable along…2015-09-25
- Underwater operations 25 and 26 aug during daylight hours in area bound by 45-25.4N 036-40.7E, 45-25.4N…2015-08-24
- Survey operations in progress until 30 sep by M/V irben derzkiy along trackline joining 45-11.1N 036-25.0E,…2015-08-04
- Survey operations in progress until 14 aug by M/V aquamarine in area bound by 43-23.9N 039-56.9E, 43-22.8N…2015-07-14
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-02 19:43Z; 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.