Cable ops

Seismic survey in progress until further notice by M/V ostrov anzer, M/V angrapa, M/V mirgorod, M/V arabat…

Laptev Sea · HYDROARC 172/13

What this record establishes

Archived notice · 2013-10-15 14:15Z

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 WEST 95/13 181000Z SEP 13.. Issued 2013-09-18 10:47Z. 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
Laptev 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.

Related notices and cancellation links

Current notices and reporting history in the Laptev Sea →

issued
2013-09-18 10:47Z
status
Archived notice
authority
RUSSIA COASTAL WEST 95/13 181000Z SEP 13.
issued by
RUSSIA COASTAL WEST
sea
Laptev Sea
position
73.994, 118.762
vessels
M/V ANGRAPA · 2 messagesM/V ARABAT · 2 messagesM/V MIRGOROD · 2 messagesM/V NEOTRAZIMYY · 2 messagesM/V OSTROV ANZER · 2 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ARCTIC.
LAPTEV SEA.
1. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY
   M/V OSTROV ANZER, M/V ANGRAPA, M/V MIRGOROD,
   M/V ARABAT AND M/V NEOTRAZIMYY
   IN AREA BOUND BY
   74-03N 111-29E, 74-05N 112-44E,
   74-26N 113-27E, 74-37N 114-14E,
   74-09N 113-59E, 74-17N 123-59E,
   74-22N 125-55E, 73-44N 124-45E,
   73-43N 112-06E, 74-00N 111-34E,
   74-03N 111-29E.
   1.5 MILE BERTH REQUESTED.
2. CANCEL HYDROARC 162/13.

Reading this warning

Seismic survey
A survey that maps the rock beneath the seabed with sound pulses from air guns, recorded on streamers kilometres long.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROARC
The U.S. long-range warning series for the Arctic Ocean.

All warning terms →

Collected reports in this area · cable & pipeline work

5 within 180 nm since 2012 · 0 in the last 12 months · 0 listed in force now

12
14

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

J
F
M
A
M
J
J
A
S
O
N
D

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

24 cable & pipeline work listed in force · see all

Record snapshot 2026-10-01 19:40Z; source collection times vary.

Cable ops

Cable laying, pipeline and seismic operations. All current cable & pipeline work →

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.