Distress signal received on 406 mhz in 25-07.33N 123-34.87W
North Pacific Ocean · HYDROPAC 1089/18
What this record establishes
Archived notice · 2018-04-06 10:15Z
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) · RCC ALAMEDA 191601Z MAR 18.. Issued 2018-03-19 16:10Z. 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 Pacific Ocean. The parsed report position is 25.122, -123.581. 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 HYDROPAC 591/18, 824/18, 1065/18, 1072/18, 1076/18, 1089/18, 1090/18, 1096/18, 1099/18, 1125/18,…later 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 1089/18 · this notice2018-03-19 · Archived notice
- HYDROPAC 1560/182018-04-21 · Archived notice
Current notices and reporting history in the North Pacific Ocean →
- issued
- 2018-03-19 16:10Z
- status
- Archived notice
- authority
- RCC ALAMEDA 191601Z MAR 18.
- issued by
- RCC ALAMEDA
- sea
- North Pacific Ocean
- position
- 25.122, -123.581
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC. DNC 13. DISTRESS SIGNAL RECEIVED ON 406 MHZ IN 25-07.33N 123-34.87W. VESSELS IN VICINITY REQUESTED TO KEEP A SHARP LOOKOUT, ASSIST IF POSSIBLE. REPORTS TO RCC ALAMEDA, TELEX: 230172343, PHONE: 510 437 3701, E-MAIL: RCCALAMEDA1@USCG.MIL.
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.
- Distress signal received
- A rescue centre has received an alert — from a beacon, a radio call or a satellite terminal — and is asking ships to look.
- 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.
- Keep a sharp lookout
- A request to every ship in the area to watch for the vessel, people or object described.
- Assist if possible
- The second half of the standard rescue request: ships able to help are asked to do so.
- RCC / JRCC (Rescue Coordination Centre)
- The centre that organises search and rescue in its region; warnings ask ships to send their reports there.
Collected reports in this area · distress & casualty cases (archived)
52 within 180 nm since 2009 · 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.
- 32 foot S/V tenacious III, unreported mazatlan (23-13.00N 106-25.00W) to hawaii2023-06-14
- Distress signal received on 406 mhz in 25-18.2N 124-23.5W2021-06-11
- Distress signal received on 406 mhz in 23-34.7N 122-49.5W2020-10-01
- Distress signal received on 406 mhz in 27-06.2N 125-35.2W2020-07-19
- Distress signal received on 406 mhz in position 25-53.6N 124-02.6W2019-09-12
- Distress signal received on 406 mhz in 23-50.1N 124-12.0W2018-11-06
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
0 distress & casualty cases (archived) listed in force · see all
Record snapshot 2026-10-01 23:01Z; source collection times vary.
Incidents
Search-and-rescue broadcasts, published only once a case has been closed for 30 days: groundings, sinkings, capsizes, fires, man overboard, overdue vessels. Nothing here is live. All current distress & casualty cases (archived) →
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.