Seismic survey in progress until 30 apr by M/V ramform vanguard in area bound by 40-23.1N 018-48.0E,…
Adriatic Sea · HYDROLANT 501/11
What this record establishes
Archived notice · 2011-04-16 09:14Z
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 144/11 251209Z MAR 11.. Issued 2011-03-25 15:32Z. 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.
- issued
- 2011-03-25 15:32Z
- status
- Archived notice
- authority
- NAVAREA III 144/11 251209Z MAR 11.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Adriatic Sea
- position
- 40.728, 18.972
- vessel
- M/V RAMFORM VANGUARD · 519 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTHERN ADRIATIC SEA. STRAIT OF OTRANTO. 1. SEISMIC SURVEY IN PROGRESS UNTIL 30 APR BY M/V RAMFORM VANGUARD IN AREA BOUND BY 40-23.1N 018-48.0E, 40-24.0N 019-10.1E, 41-04.0N 019-09.1E, 41-03.1N 018-46.1E. FIVE MILE BERTH REQUESTED. 2. CANCEL THIS MSG 01 MAY.
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.
- 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.
- 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
26 within 180 nm since 1998 · 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 04 aug until further notice by cableship raymond croze with submersible along trackline…2016-08-03
- Cable operations in progress until further notice by cableship ievoly ivory in area bound by 39-40.4N…2015-12-01
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 2026-10-01 14:18Z; 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.