Surveys

Underwater operations in progress until 16 nov: a. in area between 30-54.0S 31-05.0S and 114-54.0E 115-08.0E

Indian Ocean · HYDROPAC 3006/13

What this record establishes

Archived notice · 2013-11-17 00:01Z

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) · AUSCOAST 238/13 010213Z OCT 13.. Issued 2013-10-01 04:27Z. 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
Indian Ocean. The parsed report position is -28.783, 113.792. 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

Current notices and reporting history in the Indian Ocean →

issued
2013-10-01 04:27Z
status
Archived notice
authority
AUSCOAST 238/13 010213Z OCT 13.
issued by
AUSCOAST
sea
Indian Ocean
position
-28.783, 113.792
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

AUSTRALIA-WEST COAST.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 16 NOV:
   A. IN AREA BETWEEN 30-54.0S 31-05.0S AND 114-54.0E 115-08.0E.
   B. IN AREA BETWEEN 29-09.0S 29-48.0S AND 114-21.0E 114-43.0E.
   C. VICINITY 28-47.0S 113-47.5E.
2. CANCEL THIS MSG 17 NOV 13.

Reading this warning

Underwater operations
Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
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.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · survey operations

9 within 180 nm since 2012 · 0 in the last 12 months · 0 listed in force now

12
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

55 survey operations listed in force · see all

Record snapshot 2026-10-02 01:58Z; source collection times vary.

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

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.