Submerged wellheads reported in: a. 51-18-25N 144-18-52E five meters above sea floor
Sea of Okhotsk · HYDROPAC 3330/19
What this record establishes
Archived notice · 2019-10-17 10:47Z
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 137/19 090922Z OCT 19.. Issued 2019-10-09 10:45Z. 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 51.336, 144.313. 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
- Wellheads established: a. 51-18-19N 144-21-45Elater cancellation notice
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 2245/192019-07-11 · Archived notice
- HYDROPAC 2634/192019-08-15 · Archived notice
- HYDROPAC 2838/192019-08-30 · Archived notice
- HYDROPAC 3330/19 · this notice2019-10-09 · Archived notice
Current notices and reporting history in the Sea of Okhotsk →
- issued
- 2019-10-09 10:45Z
- status
- Archived notice
- authority
- NAVAREA XIII 137/19 090922Z OCT 19.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Sea of Okhotsk
- position
- 51.336, 144.313
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SEA OF OKHOTSK. SAKHALIN. DNC 24. SUBMERGED WELLHEADS REPORTED IN: A. 51-18-25N 144-18-52E FIVE METERS ABOVE SEA FLOOR. B. 51-21-51N 144-18-39E FOUR METERS ABOVE SEA FLOOR.
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 established in: a. 51-17-48N 144-16-08E2020-09-03
- 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 · 3.7 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 · 10.6 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 · 22.5 nm
Worldwide in the collected sources
38 wrecks & obstructions listed in force · see all
Record snapshot 2026-10-01 22:17Z; 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.