Underwater operations by M/V wave mercury in progress until 01 nov vicinity of trackline joining 45-00.0N…
Japan Sea · HYDROPAC 1873/07
What this record establishes
Archived notice · 2007-11-02 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 XIII 71/07 29 OCT 07.. Issued 2007-10-29 09:38Z. 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
- Japan Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.
- issued
- 2007-10-29 09:38Z
- status
- Archived notice
- authority
- NAVAREA XIII 71/07 29 OCT 07.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Japan Sea
- position
- 45.557, 139.754
- vessel
- M/V WAVE MERCURY · 2 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS BY M/V WAVE MERCURY IN PROGRESS UNTIL 01 NOV VICINITY OF TRACKLINE JOINING 45-00.0N 139-42.0E, 45-30.2N 139-33.6E, 46-01.6N 140-07.0E. 2. CANCEL THIS MSG 02 NOV.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- 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
14 within 180 nm since 2005 · 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 261400Z to 281400Z sep in area bound by 46-17.50N 142-33.80E, 46-23.00N 142-51.00E,…2023-09-22
- Underwater operations 261400Z to 281400Z sep in area bound by 46-17.50N 142-33.80E, 46-23.00N 142-51.00E,…2023-09-21
- Underwater operations 171400Z T0 191400Z aug in area bound by 46-17.50N 142-33.80E, 46-23.00N 142-51.00E,…2023-08-12
- Survey operations 251400Z to 261400Z may in area bound by 46-17.50N 142-33.80E, 46-23.00N 142-51.00E,…2023-05-23
- Survey operations 01 aug thru 31 dec by M/V svetlana and M/V orlan in a. 42-07.40N 130-50.30E2022-07-31
- Survey operations 27 jul thru 20 aug along trackline joining 42-32.00N 131-10.40E, 42-11.70N 131-15.50E,…2022-07-25
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
55 survey operations listed in force · see all
Record snapshot 2026-10-01 09:18Z; 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.