Cable ops

Seismic survey 07 jun thru 31 oct by M/V akademik fersman towing 8500 meter long cable in area bound by…

Sea of Okhotsk · HYDROPAC 1620/13

What this record establishes

Archived notice · 2013-10-06 09:16Z

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 XIII 30/13 050906Z JUN 13.. Issued 2013-06-05 10:53Z. 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
Sea of Okhotsk. 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 Sea of Okhotsk →

issued
2013-06-05 10:53Z
status
Archived notice
authority
NAVAREA XIII 30/13 050906Z JUN 13.
NAVAREA
NAVAREA XIII · named as the source of this relay
sea
Sea of Okhotsk
position
58.088, 145.498
vessel
M/V AKADEMIK FERSMAN · 41 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SEA OF OKHOTSK.
1. SEISMIC SURVEY 07 JUN THRU 31 OCT BY
   M/V AKADEMIK FERSMAN TOWING 8500 METER
   LONG CABLE IN AREA BOUND BY
   56-14.8N 142-13.5E, 59-18.7N 142-03.4E,
   59-19.2N 150-07.7E, 57-39.1N 149-57.8E,
   57-40.4N 145-36.1E, 56-18.7N 145-39.5E.
   FIVE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 01 NOV 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.
Towed array / streamer
Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
Tow / towing
A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
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.
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 · cable & pipeline work

7 within 180 nm since 2004 · 0 in the last 12 months · 0 listed in force now

04
05
10
15

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 2026-10-02 12:20Z; 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.