Seismic survey in progress until 31 oct by M/V ramform victory and M/V seagood cassandra 2 towing 12 6000…
Sea of Okhotsk · HYDROPAC 1370/07
What this record establishes
Archived notice · 2007-09-13 14:04Z
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 56/07 06 NOV 07.. Issued 2007-08-07 07:40Z. 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
- 2007-08-07 07:40Z
- status
- Archived notice
- authority
- NAVAREA XIII 56/07 06 NOV 07.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Sea of Okhotsk
- position
- 58.047, 155.713
- vessels
- M/V RAMFORM VICTORY · 241 messagesM/V SEAGOOD CASSANDRA 2 · 2 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 31 OCT BY M/V RAMFORM VICTORY AND M/V SEAGOOD CASSANDRA 2 TOWING 12 6000 METER LONG CABLES IN AREA BOUND BY 57-45N 155-13E, 58-02N 154-58E, 58-21N 156-12E, 58-03N 156-27E. FIVE MILE BERTH REQUESTED. 2. CANCEL HYDROPAC 1308/07. 3. CANCEL THIS MSG 01 NOV.
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.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROPAC
- The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · cable & pipeline work
13 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.
- Seismic survey in progress until 10 oct by M/V fa xian 6 towing twelve 6000 meter long cables in area bound…2015-09-21
- Seismic survey 25 jun thru 10 aug by M/V fa XIAN6 towing twelve 6000 meter long cables in area bound by…2015-06-21
- Cable operations 25 may thru 20 sep along tracklines joining: a. 53-29.11N 143-06.41E, 53-45.00N 144-40.00E,…2014-05-21
- Seismic survey 27 jul thru 31 oct by M/V orient explorer towing 8500 meter long cable in area bound by…2013-07-26
- Seismic survey in progress until 30 nov by M/V professor polshkov towing 6000 meter long cable in area bound…2010-10-22
- Seismic survey in progress until 31 oct by M/V professor polshkov towing 6000 meter long cable in area bound…2010-09-05
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 04:20Z; 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.