Seismic survey 06 thru 12 jun by M/V cgg alize towing four five mile long cables in area bound by 12-38S…
Indian Ocean · HYDROPAC 1839/15
What this record establishes
Archived notice · 2015-06-08 17:26Z
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 VIII 414/15 051005Z JUN 15.. Issued 2015-06-05 15:29Z. 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
- Indian Ocean. 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
- Pulo milo light 07-24.4N 093-40.9E unlitlater cancellation notice
- issued
- 2015-06-05 15:29Z
- status
- Archived notice
- authority
- NAVAREA VIII 414/15 051005Z JUN 15.
- NAVAREA
- NAVAREA VIII · named as the source of this relay
- sea
- Indian Ocean
- position
- -12.575, 87.858
- vessel
- M/V CGG ALIZE · 241 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
INDIAN OCEAN. DNC 03. 1. SEISMIC SURVEY 06 THRU 12 JUN BY M/V CGG ALIZE TOWING FOUR FIVE MILE LONG CABLES IN AREA BOUND BY 12-38S 087-02E, 11-43S 087-51E, 12-31S 088-41E, 13-26S 087-52E. SEVEN MILE BERTH REQUESTED. 2. CANCEL THIS MSG 13 JUN 15.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- 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
1 within 180 nm since 2015 · 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.
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 2026-10-04 02:37Z; 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.