Seismic survey in progress until 03 aug by M/V discoverer towing 10000 meter long cables in area bound by…
South Atlantic Ocean · HYDROLANT 1424/09
What this record establishes
Archived notice · 2009-07-30 20:35Z
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 V E 1586/09 300046Z JUL 09.. Issued 2009-07-30 02:45Z. 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 Atlantic 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
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2009-07-30 02:45Z
- status
- Archived notice
- authority
- NAVAREA V E 1586/09 300046Z JUL 09.
- NAVAREA
- NAVAREA V · named as the source of this relay
- issued by
- NAVAREA V E
- sea
- South Atlantic Ocean
- position
- -7.935, -32.923
- vessel
- M/V DISCOVERER · 228 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 03 AUG BY M/V DISCOVERER TOWING 10000 METER LONG CABLES IN AREA BOUND BY 08-50S 034-25W, 08-50S 034-16W, 09-00S 030-38W, 08-55S 030-38W, 06-45S 032-15W, 06-41S 032-15W, 06-50S 034-10W, 06-50S 034-30W, 07-12S 034-32W, 07-16S 034-31W, 08-16S 034-40W, 08-22S 034-40W. SEVEN MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 1410/09. 3. CANCEL THIS MSG 04 AUG.
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.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean 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
81 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.
- Underwater operations in progress until 062222Z jun by cableship ile de brehat along trackline joining…2017-05-20
- Seismic survey 21 thru 28 jan by M/V bgp challenger towing 12000 meter long cable in area bound by 13-49S…2017-01-19
- Seismic survey 14 thru 21 jan by bgp challenger towing 12000 meter long cable in area bound by 13-49S…2017-01-10
- Cable laying operations in progress until 22 apr by M/V ile de batz along trackline joining 03-44.95S…2013-04-11
- Cable laying operations 09 thru 22 apr by M/V ile de batz along trackline between 03-44.95S 038-26.81W and…2013-04-08
- Seismic survey in progress until 28 feb by M/V veritas vantage towing 5.4 mile long cable in area bound by…2010-02-23
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 04:39Z; 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.