Seismic survey 220600Z feb to 062359Z mar by M/V oceanic challenger towing 8100 meter long cable in area…
Adriatic Sea · HYDROLANT 405/12
What this record establishes
Archived notice · 2012-03-07 00:59Z
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 69/12 211208Z FEB 12.. Issued 2012-02-21 16:20Z. 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
- Adriatic Sea. 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
- Seismic survey 31 dec thru 28 feb 12 by M/V oceanic challenger towing ten 7500 meter long cables in area…cancelled by this notice
- Cancel HYDROLANT 405/12 and this msglater cancellation notice
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2012-02-22 06:00Z | 2012-03-06 23:59Z | — | 329 h 59 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2012-02-21 16:20Z
- status
- Archived notice
- self-cancels
- 2012-03-07 00:59Z
- authority
- NAVAREA III 69/12 211208Z FEB 12.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Adriatic Sea
- position
- 42.384, 17.116
- vessel
- M/V OCEANIC CHALLENGER · 21 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
ADRIATIC SEA. 1. SEISMIC SURVEY 220600Z FEB TO 062359Z MAR BY M/V OCEANIC CHALLENGER TOWING 8100 METER LONG CABLE IN AREA BOUND BY 42-56.06N 016-00.06E, 42-59.42N 016-21.09E, 42-53.97N 017-12.31E, 42-40.01N 017-46.00E, 42-17.09N 018-27.14E, 41-41.10N 017-54.86E, 42-14.74N 015-57.13E. 4.5 MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 2295/11. 3. CANCEL THIS MSG 070059Z MAR.
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.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
- 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
28 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 10 jun thru 19 july by cableship kddi cable infinity in area bound by 38-57.1N 158-11.6E,…2020-06-05
- Cable operations 10 jun thru 19 july by cableship kddi cable infinity in area bound by 38-57.1N 158-11.6E,…2020-06-05
- Cable operations 01 thru 30 sep by cableship blue ship and cableship ocean link in area bound by 40-47.57N…2019-09-06
- Cable operations 04 mar to 31 may by M/V castor 10, M/V ocean link, M/V mimar sinan, and M/V francesco di…2019-02-27
- Cable operations in progress until 30 jan by cableship raymond croze with submersible in vicinity of…2017-01-27
- Cable operations 04 aug until further notice by cableship raymond croze with submersible along trackline…2016-08-03
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 00:57Z; 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.