Seismic survey in progress until further notice by M/V pacific explorer towing six four mile long cables…
Great Australian Bight · HYDROPAC 645/08
What this record establishes
Archived notice · 2008-04-22 08:23Z
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) · AUSCOAST 107/08 060336Z APR 08, PVWA.. Issued 2008-04-06 07:20Z. 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
- Great Australian Bight. The parsed report position is -42.333, 145.000 with a 20.0 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Hazardous operations 070030Z to 070400Z apr in area between 10-42N 10-24N and 168-30E 167-24Ecancelled by this notice
- Cancel HYDROPAC 645/08 and this msg, operations completedlater cancellation notice
Current notices and reporting history in the Great Australian Bight →
- issued
- 2008-04-06 07:20Z
- status
- Archived notice
- authority
- AUSCOAST 107/08 060336Z APR 08, PVWA.
- issued by
- AUSCOAST
- sea
- Great Australian Bight
- position
- -42.333, 145.000 · r 20.0 nm
- vessel
- M/V PACIFIC EXPLORER · 44 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 FURTHER NOTICE BY M/V PACIFIC EXPLORER TOWING SIX FOUR MILE LONG CABLES WITHIN 20 MILES OF 42-20S 145-00E. FIVE MILE BERTH REQUESTED. 2. CANCEL HYDROPAC 643/08(81), 640/08 REFERS.
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.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- 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.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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.
- 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.
Collected reports in this area · cable & pipeline work
20 within 180 nm since 2002 · 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.
- Pipeline operations in progress until further notice by M/V mma coral with submersible in area bound by…2024-02-19
- Cable laying operations in progress until further notice by cableship ile de re in 40-13.1S 146-52.3E2016-06-08
- Underwater operations in progress until further notice by cableship ile de re in 40-13.1S 146-52.3E2016-05-19
- Underwater operations in progress until further notice by cableship ile de re in 40-13.96S 146-52.27E2016-04-14
- Underwater operations in progress until further notice by cableship ile de re in 40-13.09S 146-52.20E2016-04-12
- Underwater operations in progress until further notice by cableship ile de re in 40-13.92S 146-52.28E2016-03-19
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 10:40Z; 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.