Underwater operations 31 may thru 29 jun by M/V hakurei maru no 2 in areas: a. between 31-00N 32-00N and…
Philippine Sea · HYDROPAC 903/04
What this record establishes
Archived notice · 2004-06-30 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 XI 231/04 26 MAY 04. Issued 2004-05-26 09:50Z. 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
- Philippine Sea. 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 Philippine Sea →
- issued
- 2004-05-26 09:50Z
- status
- Archived notice
- authority
- NAVAREA XI 231/04 26 MAY 04
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- Philippine Sea
- position
- 22.462, 134.336
- vessel
- M/V HAKUREI MARU NO 2 · 9 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS 31 MAY THRU 29 JUN
BY M/V HAKUREI MARU NO 2 IN AREAS:
A. BETWEEN 31-00N 32-00N AND 134-30E 136-30E.
B. BOUND BY 26-30N 136-00E,
23-00N 137-30E, 15-00N 135-00E,
15-00N 133-30E, 18-00N 134-30E,
21-00N 136-00E, 22-30N 134-00E,
22-30N 130-00E, 25-00N 130-00E,
25-00N 133-00E, 26-30N 133-00E.
2. CANCEL THIS MSG 30 JUN.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- 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
11 within 180 nm since 1999 · 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.
- Survey operations 14 thru 24 apr by submersible shinkai 6500 and M/V yokosuka in areas bound by: a.…2024-04-13
- Underwater operations 19 thru 27 jun by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…2022-06-18
- Underwater operations 12 thru 22 apr by M/V shinkai 6500 and M/V yokosuka in areas bound by: a. 24-00N…2021-04-07
- Survey operations in progress until 20 oct by M/V tairikudana towing 6000 meter long cable in areas bound…2005-05-07
- Survey operations in progress until 20 oct by M/V tairikudana towing 6000 meter long cable in areas bound…2005-05-06
- Underwater operations 15 sep thru 30 oct by M/V hakurei maru no2003-09-11
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
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 2026-10-02 07:15Z; 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.