Distress signal received on 406 mhz in 22-31.74N 117-42.77E at 190059Z may
South China Sea · HYDROPAC 1484/21
What this record establishes
Archived notice · 2021-06-04 11:17Z
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) · MRCC HONG KONG 190152Z MAY 21.. Issued 2021-05-19 03:04Z. 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
- South China Sea. The parsed report position is 22.529, 117.713. 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
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 1451/212021-05-16 · Archived notice
- HYDROPAC 1484/21 · this notice2021-05-19 · Archived notice
Current notices and reporting history in the South China Sea →
- issued
- 2021-05-19 03:04Z
- status
- Archived notice
- authority
- MRCC HONG KONG 190152Z MAY 21.
- issued by
- MRCC HONG KONG
- sea
- South China Sea
- position
- 22.529, 117.713
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTH CHINA SEA. DNC 23. DISTRESS SIGNAL RECEIVED ON 406 MHZ IN 22-31.74N 117-42.77E AT 190059Z MAY. VESSELS IN VICINITY REQUESTED TO KEEP A SHARP LOOKOUT, ASSIST IF POSSIBLE. REPORTS TO MRCC HONG KONG, PHONE: 852 2233 7999, FAX: 852 2541 7714, E-MAIL: HKMRCC@MARDEP.GOV.HK.
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.
- 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.
- MRCC (Maritime Rescue Coordination Centre)
- A rescue coordination centre for maritime cases only, such as MRCC Fort-de-France or MRCC Vietnam.
Collected reports in this area · distress & casualty cases (archived)
84 within 180 nm since 1996 · 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.
- Man overboard from F/V CT4-3264 in vicinity 21-58.00N 118-33.00E at 210400Z dec2023-12-21
- Distress signal received on 406 mhz from M/V si hang yun 2 in 24-46.50N 119-32.50E at 180115Z nov2023-11-18
- Distress signal received on 406 mhz from M/V new legend pearl in 21-03.51N 116-35.97E2023-08-20
- Distress signal received on 406 mhz in 22-28.80N 118-16.60E at 170306Z jan2023-01-17
- Distress signal received on 406 mhz in 21-00.00N 117-15.00E at 230501Z jun2022-06-23
- M/V huaxiang, 11 persons on board, disabled and adrift due to engine failure in 20-20N 119-35E at 131017Z mar2022-03-13
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 02:20Z; 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.