Incidents · distress

Distress signals received on 406 mhz at 300950Z aug in: a. 30-55-37N 141-57-46E

Philippine Sea · HYDROPAC 3182/18

What this record establishes

Archived notice · 2018-09-14 13:44Z

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) · JAPAN COAST GUARD 301930Z AUG 18.. Issued 2018-08-31 00:26Z. 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
Philippine Sea. The parsed report position is 29.973, 139.248. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Philippine Sea →

issued
2018-08-31 00:26Z
status
Archived notice
authority
JAPAN COAST GUARD 301930Z AUG 18.
issued by
JAPAN COAST GUARD
sea
Philippine Sea
position
29.973, 139.248
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
PHILIPPINE SEA.
DNC 12.
DISTRESS SIGNALS RECEIVED ON 406 MHZ AT 300950Z AUG IN:
A. 30-55-37N 141-57-46E.
B. 29-01-08N 136-32-02E.
VESSELS IN VICINITY REQUESTED TO KEEP A SHARP
LOOKOUT, ASSIST IF POSSIBLE.
REPORTS TO JAPAN COAST GUARD,
PHONE: 814 5663 4999, 814 5663 4999,
812 2365 6957, 815 2651 4999, 819 9255 4999.

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.
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.
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.

All warning terms →

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

63 within 180 nm since 2000 · 0 in the last 12 months · 0 listed in force now

00
05
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15
20
23

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

J
F
M
A
M
J
J
A
S
O
N
D

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

Worldwide in the collected sources

0 distress & casualty cases (archived) listed in force · see all

Record snapshot 2026-10-02 04:03Z; 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.