Seismic survey in progress until 31 aug by M/V nordic explorer towing 3000 meter long cables in area bound…
Japan Sea · HYDROPAC 999/00
What this record establishes
Archived notice · 2000-09-01 00:00Z
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 XI 364/00 071206Z JUL 00. Issued 2000-07-07 18:23Z. 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
- Japan Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
- issued
- 2000-07-07 18:23Z
- status
- Archived notice
- authority
- NAVAREA XI 364/00 071206Z JUL 00
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- Japan Sea
- position
- 35.504, 130.387
- vessel
- M/V NORDIC EXPLORER · 92 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 AUG BY M/V NORDIC EXPLORER TOWING 3000 METER LONG CABLES IN AREA BOUND BY 35-36-04.3N 130-28-05.6E, 35-30-35.5N 130-31-54.4E, 35-24-28.1N 130-18-11.2E 35-29-49.1N 130-14-30.1E. 2. CANCEL THIS MSG 01 SEP.
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.
- 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
6 within 180 nm since 1993 · 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 04 apr by M/V tamhae 2 towing 1500 meter long cable in area bound by…2007-03-30
- Cable operations in progress until 30 sep by M/V segyero-ho along trackline joining 35-47-26N 129-57-28E,…2002-08-15
- Underwater cable operations 032000Z to 131100Z aug by M/V kdd pacific link in area bound by 35-57.5N…2000-07-31
- Cable laying operations 300001Z jul to 031300Z aug by cableship kdd pacific link in area bound by 36-35N…2000-07-28
- Underwater cable operations in progress thru 10 jul along trackline joining 35-33.0N 133-02.0E, 35-33.3N…1993-06-02
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
24 cable & pipeline work listed in force · see all
Record snapshot 2026-10-01 14:53Z; 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.