Incidents · distress

Distress signals received on 406 mhz in: a. 28-11.4N 121-22.9W

North Pacific Ocean · HYDROPAC 931/18

What this record establishes

Archived notice · 2018-03-23 11:14Z

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 092312Z MAR 18.. Issued 2018-03-09 23:32Z. 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 27.319, -121.633. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Original warning text

EASTERN NORTH PACIFIC.
DNC 13.
DISTRESS SIGNALS RECEIVED ON 406 MHZ IN:
A. 28-11.4N 121-22.9W.
B. 26-26.9N 121-53.1W.
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.

All warning terms →

Collected reports in this area · distress & casualty cases (archived)

42 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.

Distress signal received on 406 mhz in 27-37.2N 120-59.5W2020-11-24
Distress signal received on 406 mhz in 28-48.3N 123-26.6W2020-08-06
Distress signal received on 406 mhz in position 25-53.6N 124-02.6W2019-09-12
S/V patriot taking on water in 30-04.6N 122-21.2W2019-07-12
Distress signal received in 29-57N 122-10W2018-04-18
Distress signal received on 406 mhz in 25-07.33N 123-34.87W2018-03-19

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 2026-10-02 01:23Z; 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.