Seismic survey in progress until 07 dec by M/V ramform viking towing ten 6000 meter long cables in area…
Mediterranean Sea - Eastern Basin · HYDROLANT 1798/04
What this record establishes
Archived notice · 2004-12-08 00:00Z
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 III 616/04 081254Z NOV 04; NAVAREA III 617/04 081315Z NOV 04.. Issued 2004-11-08 13:48Z. 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
- Mediterranean Sea - Eastern Basin. 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
- Platform established in 44-21.5N 013-29.3Ecancelled by this notice
- Seismic survey 23 oct thru 31 jan 05 by M/V ramform viking towing ten 600 meter long cables in area bound by…cancelled by this notice
Current notices and reporting history in the Mediterranean Sea - Eastern Basin →
- issued
- 2004-11-08 13:48Z
- status
- Archived notice
- authority
- NAVAREA III 616/04 081254Z NOV 04; NAVAREA III 617/04 081315Z NOV 04.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Mediterranean Sea - Eastern Basin
- position
- 31.628, 29.846
- vessel
- M/V RAMFORM VIKING · 198 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 07 DEC BY M/V RAMFORM VIKING TOWING TEN 6000 METER LONG CABLES IN AREA BOUND BY 31-45N 029-42E, 31-45N 030-00E, 31-30N 030-00E, 31-30N 029-57E, 31-32N 029-57E, 31-32N 029-52E, 31-31N 029-52E, 31-31N 029-51E, 31-31N 029-48E, 31-29N 029-48E, 31-29N 029-42E. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 1591/04(54). 3. CANCEL HYDROLANT 1708/04. 4. CANCEL THIS MSG 08 DEC.
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
204 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 24 thru 27, 30 and 31 aug by M/V bold maverick in areas bound by: a. 34-47.00N 032-19.00E,…2021-08-21
- Cable operations 151600Z to 202359Z mar by cableship raymond croze in area within three miles of 31-13.2N…2021-03-14
- Cable operations in progress until 22 oct by cableship ile d'ouessant in area bound by 33-49.11N 030-52.08E,…2020-10-12
- Cable operations in progress until 15 oct by cableship ile d'ouessant in area bound by 33-49.11N 030-52.08E,…2020-09-28
- Cable operations 072200Z to 212359Z may by M/V rebecca in area bound by 33-18N 029-36E, 33-02N 030-59E,…2020-05-07
- Cable operations 16 thru 23 aug by cableship raymond croze in 29-48.2N 032-29.8E2019-08-15
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 2026-10-03 08:54Z; 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.