Seismic survey 01 aug thru 30 nov by M/V geowave voyager towing ten 8000 meter long cables in area bound by…
South China Sea · HYDROPAC 1525/10
What this record establishes
Archived notice · 2010-09-06 16:19Z
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 552/10 271148Z JUL 10.. Issued 2010-07-27 12:02Z. 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
- South China 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.
Related notices and cancellation links
Current notices and reporting history in the South China Sea →
- issued
- 2010-07-27 12:02Z
- status
- Archived notice
- authority
- NAVAREA XI 552/10 271148Z JUL 10.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- South China Sea
- position
- 8.184, 116.420
- vessel
- M/V GEOWAVE VOYAGER · 25 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTH CHINA SEA. 1. SEISMIC SURVEY 01 AUG THRU 30 NOV BY M/V GEOWAVE VOYAGER TOWING TEN 8000 METER LONG CABLES IN AREA BOUND BY 08-02-52N 115-59-55E, 08-35-36N 116-43-23E, 08-26-26N 116-50-20E, 08-18-15N 116-39-27E, 08-12-36N 116-43-44E, 07-48-04N 116-11-09E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 01 DEC.
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.
- 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
41 within 180 nm since 2000 · 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 operations in progress until further notice by cableship rene descartes in vicinity of…2016-12-26
- Seismic survey in progress until 30 dec by M/V ramform sovereign towing 12 5.1 mile long cables in area…2016-12-12
- Seismic survey 082200Z aug to 102359Z nov by M/V western spirit towing eight 5000 meter long cables in area…2013-08-08
- Seismic survey 08 jun until further notice by M/V voyager explorer towing four 5000 meter long cables in…2013-06-07
- Seismic survey 21 sep thru 15 dec by M/V ramform explorer towing ten five mile long cables in area bound by…2012-09-20
- Seismic survey in progress until further notice by M/V voyager explorer towing four 5000 meter long cables…2012-09-14
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 2026-10-02 00:49Z; 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.