Seismic survey 020001Z to 110001Z aug by M/V ramform victory towing twelve 5400 meter long cables in area…
Sea of Okhotsk · HYDROPAC 1308/07
What this record establishes
Archived notice · 2007-08-07 07:40Z
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 52/07 28 JUL 07.. Issued 2007-07-28 20:35Z. 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 →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2007-08-02 00:01Z | 2007-08-11 00:01Z | — | 216 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2007-07-28 20:35Z
- status
- Archived notice
- self-cancels
- 2007-08-11 01:01Z
- authority
- NAVAREA XIII 52/07 28 JUL 07.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Sea of Okhotsk
- position
- 55.173, 143.134
- vessel
- M/V RAMFORM VICTORY · 241 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SEISMIC SURVEY 020001Z TO 110001Z AUG BY M/V RAMFORM VICTORY TOWING TWELVE 5400 METER LONG CABLES IN AREA BOUND BY 54-40-25N 143-15-01E, 55-31-56N 142-26-16E, 55-40-09N 143-00-00E, 54-50-00N 143-50-00E. FIVE MILE BERTH REQUESTED. 2. CANCEL THIS MSG 110101Z AUG.
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.
- 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.
Collected reports in this area · cable & pipeline work
23 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.
- Cable laying in progress until further notice along trackline joining 59-33-53.78N 151-15-16.53E,…2015-11-13
- Seismic survey 02 jun thru 31 aug by M/V polarcus amani, M/V polarcus asima and M/V orient explorer towing…2015-06-01
- Seismic survey 02 jun thru 31 aug by M/V polarcus amani, M/V polarcus asima and M/V orient explorer towing…2015-05-31
- Seismic survey 29 may thru 30 jun by M/V geo caspian towing six 4900 meter long cables in areas bound by: a.…2015-05-28
- Seismic survey 10 aug thru 12 sep by M/V viking vision towing ten 6500 meter long cables in area bound by…2014-08-07
- Seismic survey 05 aug thru 07 sep by M/V viking vision towing 10000 meter long cable in area bound by…2014-07-31
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 11:11Z; 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.