Seismic survey 03 jul thru 01 nov in area bound by 53-16-37.5N 141-47-12.5E, 53-15-42.5N 141-43-39.5E,…
Sea of Okhotsk · HYDROPAC 1818/12
What this record establishes
Archived notice · 2012-11-02 00:01Z
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) · VLAD 160/12 270917Z JUN 12.. Issued 2012-06-27 10:08Z. 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.
Current notices and reporting history in the Sea of Okhotsk →
- issued
- 2012-06-27 10:08Z
- status
- Archived notice
- authority
- VLAD 160/12 270917Z JUN 12.
- issued by
- VLAD
- sea
- Sea of Okhotsk
- position
- 53.641, 141.801
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SAKHALIN-NORTHWEST COAST. 1. SEISMIC SURVEY 03 JUL THRU 01 NOV IN AREA BOUND BY 53-16-37.5N 141-47-12.5E, 53-15-42.5N 141-43-39.5E, 53-33-55.7N 141-11-05.8E, 53-51-30.3N 141-10-44.1E, 53-51-21.9N 142-42-16.1E. 2. CANCEL THIS MSG 02 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.
- 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.
- 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
39 within 180 nm since 2001 · 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 09 oct thru 09 dec by M/V geophysic towing 1500 meter long cable in area bound by 51-12-28N…2016-10-06
- Cable repair operations 02 aug thru 20 sep vicinity of trackline joining 52-12-41N 141-31-24E, 52-12-44N…2016-07-29
- Seismic survey in progress until 01 aug by M/V hai yang shi you 718 towing 3.3 mile long cable in area bound…2016-07-11
- Seismic survey in progress until 01 aug by M/V hai yang shi you 718 towing 3.3 mile long cable in area bound…2016-07-08
- Seismic survey 01 thru 31 jul by M/V hai yang shi you 718 in area bound by 51-28-09N 143-29-07E, 51-34-55N…2016-06-30
- Seismic survey 15 aug thru 15 sep by M/V diabaz towing 1200 meter long cable in area bound by 51-20-35N…2015-08-13
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 19:01Z; 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.