Cable ops

Seismic survey in progress until 262359Z jul by M/V akademik fersman towing 8500 meter long cable along…

Sea of Okhotsk · HYDROPAC 1390/08

What this record establishes

Archived notice · 2008-07-27 00:59Z

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 31/08 22 JUL 08.. Issued 2008-07-22 11:07Z. 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 the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Current notices and reporting history in the Sea of Okhotsk →

issued: 2008-07-22 11:07Z
status: Archived notice
self-cancels: 2008-07-27 00:59Z
authority: NAVAREA XIII 31/08 22 JUL 08.
NAVAREA: NAVAREA XIII · named as the source of this relay
sea: Sea of Okhotsk
position: 57.898, 146.705
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

1. SEISMIC SURVEY IN PROGRESS UNTIL 262359Z JUL
   BY M/V AKADEMIK FERSMAN TOWING 8500 METER LONG
   CABLE ALONG TRACKLINE JOINING
   54-49N 141-26E, 56-55N 140-49E,
   58-29N 143-06E, 58-53N 146-42E,
   57-59N 150-04E, 57-56N 154-40E.
   FIVE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 270059Z JUL.

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.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
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.
Track line joining: Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
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

8 within 180 nm since 2004 · 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.

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

23 cable & pipeline work listed in force · see all

Record snapshot 2026-10-03 18:52Z; 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.