Incidents · distress

Distress signal received on 406 mhz in 04-43.4N 139-53.4E at 151737Z oct

North Pacific Ocean · HYDROPAC 2908/11

What this record establishes

Archived notice · 2011-10-22 09:36Z

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 GUAM 152239Z OCT 11 - JRCC HONOLULU 152222Z OCT 11.. Issued 2011-10-15 22:53Z. 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 4.723, 139.890. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Original warning text

WESTERN NORTH PACIFIC.
1. DISTRESS SIGNAL RECEIVED ON 406 MHZ IN
   04-43.4N 139-53.4E AT 151737Z OCT. VESSELS
   IN VICINITY REQUESTED TO KEEP A SHARP
   LOOKOUT, ASSIST IF POSSIBLE. REPORTS
   TO U.S. COAST GUARD SECTOR GUAM,
   PHONE: 671 355 4824, FAX: 671 355 4831,
   E-MAIL: RCCGUAM@USCG.MIL.
2. CANCEL HYDROPAC 2905/11(83), FALSE ALERT.

Reading this warning

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.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
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.
Cancellation reference: A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC: The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.

All warning terms →

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

54 within 180 nm since 1999 · 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.

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 2026-09-24 16:05Z; 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.