Surveys

Survey operations in progress until 10 nov by M/V valerian uryvayev in areas bound by: a. 51-29-29N…

Japan Sea · HYDROPAC 1662/04

What this record establishes

Archived notice · 2004-11-11 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) · VLADIVOSTOK 196/04 21 OCT 04.. Issued 2004-10-21 14:15Z. 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 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 Japan Sea →

issued: 2004-10-21 14:15Z
status: Archived notice
authority: VLADIVOSTOK 196/04 21 OCT 04.
issued by: VLADIVOSTOK
sea: Japan Sea
position: 51.471, 140.880
vessel: M/V VALERIAN URYVAYEV
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. SURVEY OPERATIONS IN PROGRESS UNTIL 10 NOV BY
   M/V VALERIAN URYVAYEV IN AREAS BOUND BY:
   A. 51-29-29N 140-50-18E, 51-28-27N 140-53-31E,
      51-28-08N 140-55-10E, 51-27-06N 140-54-39E,
      51-27-25N 140-53-00E, 51-28-50N 140-49-31E.
   B. 51-29-00N 140-54-18E, 51-29-49N 140-54-18E,
      51-29-49N 140-54-59E, 51-29-00N 140-54-59E.
   C. 51-26-32N 140-54-00E, 51-26-56N 140-54-00E,
      51-26-56N 140-55-00E, 51-26-32N 140-55-00E.
2. CANCEL THIS MSG 11 NOV.

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.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · survey operations

132 within 180 nm since 2000 · 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.

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

Underwater operations 01 may thru 31 oct in areas bound by: a. 51-27.95N 143-26.72E, 51-29.25N 143-45.52E,…Surveys · 107 nm

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-04 02:39Z; 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.