Wrecks

11 meter depth reported in 07-04.40N 172-46.20E

North Pacific Ocean · HYDROPAC 146/23

What this record establishes

Archived notice · 2023-01-15 17:13Z

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) · SFH 0/23 121706Z JAN 23.. Issued 2023-01-12 17:14Z. 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 7.073, 172.770. 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.

  1. HYDROPAC 76/232023-01-06 · Archived notice
  2. HYDROPAC 146/23 · this notice2023-01-12 · Archived notice
  3. HYDROPAC 161/232023-01-13 · Archived notice
Compare all 3 notices, changes and original texts →

Current notices and reporting history in the North Pacific Ocean →

issued
2023-01-12 17:14Z
status
Archived notice
self-cancels
2023-01-15 17:13Z
authority
SFH 0/23 121706Z JAN 23.
issued by
SFH
sea
North Pacific Ocean
position
7.073, 172.770
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NORTH PACIFIC.
MARSHALL ISLANDS.
DNC 12.
1. 11 METER DEPTH REPORTED IN 07-04.40N 172-46.20E.
2. CANCEL HYDROPAC 76/23.
3. CANCEL THIS MSG 151713Z JAN 23.

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.
Shoal / reported depth
Water shallower than the chart shows — a newly found shoal, a reported depth, or less water than charted.
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.
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.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.
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.

All warning terms →

Collected reports in this area · wrecks & obstructions

5 within 180 nm since 2005 · 0 in the last 12 months · 1 listed in force now

05
10
15
20
25

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

38 wrecks & obstructions listed in force · see all

Record snapshot 2026-10-02 08:07Z; source collection times vary.

Wrecks

Dangerous wrecks, shoals and submerged obstructions. All current wrecks & obstructions →

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.