Underwater operations in progress until further notice by M/V poseidon with submersible vicinity of 31-00N…
North Atlantic Ocean · HYDROLANT 1689/10
What this record establishes
Archived notice · 2010-09-15 04:52Z
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 II 337/10 081450Z SEP 10.. Issued 2010-09-08 16:31Z. 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
- North Atlantic Ocean. The parsed report position is 31.000, -22.000. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Cancel HYDROLANT 1689/10 and this msg, operations completedlater cancellation notice
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2010-09-08 16:31Z
- status
- Archived notice
- authority
- NAVAREA II 337/10 081450Z SEP 10.
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- North Atlantic Ocean
- position
- 31.000, -22.000
- vessel
- M/V POSEIDON · 64 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH ATLANTIC. CANARY ISLANDS. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V POSEIDON WITH SUBMERSIBLE VICINITY OF 31-00N 022-00W. WIDE BERTH REQUESTED.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- 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.
Collected reports in this area · survey operations
8 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.
- Survey operations in progress until further notice by M/V sarmiento de gamboa towing 300 meter long cable…2022-06-21
- Survey operations from 26 may thru 23 jun by sarmiento de gamboa in area bound by 20-02N 021-02W, 25-00N…2018-05-25
- Hydrographic survey 03 thru 10 dec by M/V d. carlos I in area bound by 32-09.78N 021-54.43W, 32-11.59N…2012-12-02
- Oceanographic operations 021500Z to 050900Z may by M/V poseidon along trackline between 29-10N 015-30W and…2005-04-29
- Oceanographic operations 11 thru 26 feb by M/V poseidon: a. in area between 37-00N 31-00N and 035-00W 022-00W2002-02-09
- Oceanographic operations 10 thru 20 apr by M/V poseidon along trackline joining 30-00N 024-00W, 33-00N…2000-04-08
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
55 survey operations listed in force · see all
Record snapshot 2026-10-02 03:26Z; source collection times vary.
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
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.