Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 20 nov along trackline between…
South Atlantic Ocean · HYDROLANT 2943/13
What this record establishes
Archived notice · 2013-11-23 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 VI 521/13 201400Z NOV 13 - UKMRCC 201409Z NOV 13.. Issued 2013-11-20 14:52Z. 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 the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 19 nov along trackline between…cancelled by this notice
- Vessel dadimar dos on fire and adrift in 21-44.0N 022-23.2Wcancelled by this notice
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2013-11-20 14:52Z
- status
- Archived notice
- authority
- NAVAREA VI 521/13 201400Z NOV 13 - UKMRCC 201409Z NOV 13.
- NAVAREA
- NAVAREA VI · named as the source of this relay
- sea
- South Atlantic Ocean
- position
- -36.221, -51.827
- vessel
- M/V WESTERN REGENT · 199 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC.
URUGUAY.
1. SEISMIC SURVEY BY M/V WESTERN REGENT
TOWING TEN 8800 METER LONG CABLES:
A. 20 NOV ALONG TRACKLINE BETWEEN
37-16.50S 052-12.35W AND 36-32.98S 051-23.67W.
B. 20 AND 21 NOV ALONG TRACKLINE BETWEEN
36-21.40S 051-31.28W AND 35-37.92S 052-13.80W.
C. 21 AND 22 NOV ALONG TRACKLINE BETWEEN
35-34.48S 052-07.00W AND 36-17.92S 051-24.45W.
D. 22 NOV ALONG TRACKLINE BETWEEN
36-21.18S 051-31.05W AND 35-37.72S 052-13.58W.
EIGHT MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 2938/13(51), ASSISTANCE NO LONGER NEEDED.
3. CANCEL HYDROLANT 2927/13.
4. CANCEL THIS MSG 23 NOV 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.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- 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
497 within 180 nm since 1999 · 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 operations in progress until further notice by cableship ile de sein along trackline joining 36-35.59S…2020-09-23
- Cable operations in progress until further notice by cableship ile de sein along trackline joining 36-35.59S…2020-09-18
- Cable operations in progress until further notice by cableship ile de sein along trackline joining 35-54.40S…2020-09-02
- Cable operations in progress until further notice by cableship ile de sein along trackline joining 36-19.61S…2020-08-23
- Cable operations in progress until 302300Z sep by cableship ile de brehat in area bound by 34-58.0S…2017-08-28
- Cable operations in progress until 302300Z sep by cableship ile de brehat in area bound by 34-58.0S…2017-08-16
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.