Surveys

Underwater operations in progress until further notice by M/V HAKURYU-5 in area bound by 14-40.15N…

Andaman or Burma Sea · HYDROPAC 3889/20

What this record establishes

Archived notice · 2021-01-08 14:46Z

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 VIII 797/20 311016Z DEC 20.. Issued 2020-12-31 10:31Z. 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: Andaman or Burma 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 Andaman or Burma Sea →

issued: 2020-12-31 10:31Z
status: Archived notice
authority: NAVAREA VIII 797/20 311016Z DEC 20.
NAVAREA: NAVAREA VIII · named as the source of this relay
sea: Andaman or Burma Sea
position: 14.301, 95.856
vessel: M/V HAKURYU-5
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ANDAMAN SEA.
DNC 03.
UNDERWATER OPERATIONS IN PROGRESS UNTIL
FURTHER NOTICE BY M/V HAKURYU-5
IN AREA BOUND BY
14-40.15N 095-29.73E, 14-40.00N 096-15.00E,
14-00.00N 096-15.00E, 14-00.00N 095-51.00E,
13-52.18N 095-51.00E, 13-52.18N 095-29.84E.
THREE MILE BERTH REQUESTED.

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.
Underwater operations: Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
Until further notice: The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
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.

All warning terms →

Collected reports in this area · survey operations

77 within 180 nm since 2012 · 1 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.

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 06:59Z; 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.