Seismic survey in progress until further notice by M/V zefir I towing 10000 meter long cable along trackline…
East Siberian Sea · HYDROARC 178/13
What this record establishes
Archived notice · 2013-09-23 18:35Z
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 XXI 51/13 201830Z SEP 13.. Issued 2013-09-20 19:02Z. 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 map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Seismic survey in progress until further notice by M/V zefir I towing 10000 meter long cable along trackline…cancelled by this notice
- Cancel HYDROARC 178/13 and this msglater cancellation notice
Current notices and reporting history in the East Siberian Sea →
- issued
- 2013-09-20 19:02Z
- status
- Archived notice
- authority
- NAVAREA XXI 51/13 201830Z SEP 13.
- NAVAREA
- NAVAREA XXI · named as the source of this relay
- sea
- East Siberian Sea
- position
- 73.831, 162.307
- vessel
- M/V ZEFIR I · 13 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
ARCTIC. EAST SIBERIAN SEA. 1. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V ZEFIR I TOWING 10000 METER LONG CABLE ALONG TRACKLINE BETWEEN 70-33.9N 176-05.3E AND 77-05.8N 148-31.5E. SEVEN MILE BERTH REQUESTED. 2. CANCEL HYDROARC 176/13.
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.
- 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.
- 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.
Collected reports in this area · cable & pipeline work
4 within 180 nm since 2010 · 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.
- Seismic survey 010001Z sep to 300001Z oct by M/V akademik fersman towing 8500 meter long cable in area bound…2016-08-28
- Seismic survey in progress 20 sep thru 01 nov by M/V orient explorer towing 8300 meter long cable in area…2014-09-18
- Seismic survey 140001Z sep to 150001Z oct by M/V zefir 1 towing 8000 meter long cable in area bound by…2010-09-09
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 05:48Z; 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.