Submerged wellheads established in: a. 51-17-48N 144-16-08E
Sea of Okhotsk · HYDROPAC 2574/20
What this record establishes
Archived notice · 2020-12-11 13:45Z
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 XIII 97/20 030918Z SEP 20.. Issued 2020-09-03 09:29Z. 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
- Sea of Okhotsk. The parsed report position is 51.309, 144.298. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Current notices and reporting history in the Sea of Okhotsk →
- issued
- 2020-09-03 09:29Z
- status
- Archived notice
- authority
- NAVAREA XIII 97/20 030918Z SEP 20.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Sea of Okhotsk
- position
- 51.309, 144.298
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SEA OF OKHOTSK. DNC 24. SUBMERGED WELLHEADS ESTABLISHED IN: A. 51-17-48N 144-16-08E. B. 51-19-37N 144-14-59E. C. 51-18-15N 144-21-36E. D. 51-18-24N 144-18-47E.
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.
- 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 51-29.25N 140-54.76E2021-01-21
- Submerged obstruction in vicinity 51-26.88N 140-54.76E2020-12-25
- 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
- Wave rider buoy established in 51-22.54N 144-14.17ENav aids · 4.6 nm
- Underwater operations 25 may thru 31 dec in area bound by 51-34.92N 143-24.27E, 51-34.90N 144-06.22E,…Surveys · 8.9 nm
- Underwater operations 01 may thru 31 oct in areas bound by: a. 51-27.95N 143-26.72E, 51-29.25N 143-45.52E,…Surveys · 22.6 nm
Worldwide in the collected sources
38 wrecks & obstructions listed in force · see all
Record snapshot 2026-10-02 06:24Z; 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.