Surveys

0.2 mile berth requested

East Siberian Sea · HYDROARC 170/12

What this record establishes

Archived notice · 2012-09-24 00:01Z

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) · RUSSIA COASTAL WARNING EAST 72/12 1201600Z SEP 12.. Issued 2012-09-13 04:27Z. 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: East Siberian Sea. The parsed report position is 75.590, 153.822. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the East Siberian Sea →

issued: 2012-09-13 04:27Z
status: Archived notice
authority: RUSSIA COASTAL WARNING EAST 72/12 1201600Z SEP 12.
issued by: RUSSIA COASTAL WARNING EAST
sea: East Siberian Sea
position: 75.590, 153.822
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ARCTIC.
EAST SIBERIAN SEA.
CHART 41000
1. SCIENTIFIC MOORING ESTABLISHED UNTIL 23 SEP
   IN 75-35.40N 153-49.33E.
   0.2 MILE BERTH REQUESTED.
2. CANCEL THIS MSG 24 SEP 12.

Reading this warning

Chart reference: The number of the nautical chart on which the reported position lies.
Scientific mooring: Instruments anchored to the seabed and held up by floats, sometimes just below the surface, left for months to measure the ocean.
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.
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

4 within 180 nm since 2012 · 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.

Sub-surface scientific moorings, marked by red floats, established in: a. 72-50.38N 158-14.52E2016-09-28
0.2 mile berth requested2012-09-11
0.2 mile berth requested2012-08-27

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 05:40Z; 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.