Seismic survey in progress until 09 aug by M/V western spirit towing ten 7000 meter long cables in area…
South China Sea · HYDROPAC 995/13
What this record establishes
Archived notice · 2013-08-10 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) · NAVAREA XI 250/13 101117Z APR 13 - AUSSAR 2394/13 CX APR 13.. Issued 2013-04-10 13:12Z. 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
- 2013-04-10 13:12Z
- status
- Archived notice
- authority
- NAVAREA XI 250/13 101117Z APR 13 - AUSSAR 2394/13 CX APR 13.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- South China Sea
- position
- 6.814, 103.370
- vessel
- M/V WESTERN SPIRIT · 51 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTH CHINA SEA. GULF OF THAILAND. 1. SEISMIC SURVEY IN PROGRESS UNTIL 09 AUG BY M/V WESTERN SPIRIT TOWING TEN 7000 METER LONG CABLES IN AREA BOUND BY 06-38.0N 102-39.1E, 06-54.8N 102-39.0E, 06-55.0N 103-21.3E, 07-01.7N 103-21.2E, 07-01.8N 104-05.8E, 06-38.3N 103-51.1E. 2. CANCEL HYDROPAC 976/13(71), VESSEL ASSISTED. 3. CANCEL THIS MSG 10 AUG 13.
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.
- 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
62 within 180 nm since 2002 · 1 in the last 12 months · 1 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 works by M/V pxgeo 2 towing eight cables, each 5 mile long2026-08-06
- Cable operations 29 jul until further notice by cableship teneo in vicinity 05-51.00N 100-42.49E2023-07-27
- Malaysia DNC 03, DNC 112022-03-02
- Cable operations 01 aug until further notice by cableship lodbrog in area bound by 07-16.3N 100-47.3E,…2020-07-31
- Cable operations 31 jul until further notice by cableship rene descartes in vicinity of trackline joining…2017-07-29
- Cable operations 270800Z apr until further notice by cableship rene descartes in vicinity of trackline…2017-04-26
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
Worldwide in the collected sources
23 cable & pipeline work listed in force · see all
Record snapshot 2026-09-25 00:18Z; 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.