Submerged obstruction in vicinity 51-29.25N 140-54.76E
Japan Sea · HYDROPAC 278/21
What this record establishes
Archived notice · 2022-03-25 12:51Z
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) · VLADIVOSTOK 11/21 210916Z JAN 21.. Issued 2021-01-21 09:21Z. 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
- Japan Sea. The parsed report position is 51.487, 140.913. 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
These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.
- HYDROPAC 3837/202020-12-25 · Archived notice
- HYDROPAC 278/21 · this notice2021-01-21 · Archived notice
- issued
- 2021-01-21 09:21Z
- status
- Archived notice
- authority
- VLADIVOSTOK 11/21 210916Z JAN 21.
- issued by
- VLADIVOSTOK
- sea
- Japan Sea
- position
- 51.487, 140.913
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
TATAR STRAIT. RUSSIA. DNC 24. SUBMERGED OBSTRUCTION IN VICINITY 51-29.25N 140-54.76E.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Submerged obstruction
- Something on or near the seabed that could damage a ship, an anchor or fishing gear — its nature often unknown.
- 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.
Collected reports in this area · wrecks & obstructions
10 within 180 nm since 2014 · 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.
- Submerged obstruction in vicinity 51-26.88N 140-54.76E2020-12-25
- Submerged wellheads established in: a. 51-17-48N 144-16-08E2020-09-03
- Submerged wellheads reported in: a. 51-18-25N 144-18-52E five meters above sea floor2019-10-09
- Submerged wellhead reported in 51-18-28N 144-18-52E five meters above sea floor2019-08-30
- Submerged wellhead reported in 51-21-52N 144-18-33E, 3.96 meters above sea floor2019-08-15
- Submerged wellheads up to five meters less than charted depths established in: a. 51-18.30N 144-21.66E2019-07-11
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
Worldwide in the collected sources
38 wrecks & obstructions listed in force · see all
Record snapshot 2026-10-02 06:25Z; source collection times vary.
Wrecks
Dangerous wrecks, shoals and submerged obstructions. All current wrecks & obstructions →
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.