Other

Geophysical operations in progress until 17 jul in area bound by 37-17.0N 004-32.3E, 37-16.0N 005-06.9E,…

Mediterranean Sea - Western Basin · HYDROLANT 420/13

What this record establishes

Archived notice · 2013-07-18 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) · NAVAREA III 67/13 151158Z FEB 13.. Issued 2013-02-15 16:12Z. 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
Mediterranean Sea - Western Basin. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the Mediterranean Sea - Western Basin →

issued
2013-02-15 16:12Z
status
Archived notice
authority
NAVAREA III 67/13 151158Z FEB 13.
NAVAREA
NAVAREA III · named as the source of this relay
sea
Mediterranean Sea - Western Basin
position
37.193, 5.174
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN MEDITERRANEAN SEA.
ALGERIA.
1. GEOPHYSICAL OPERATIONS IN PROGRESS UNTIL 17 JUL
   IN AREA BOUND BY
   37-17.0N 004-32.3E, 37-16.0N 005-06.9E,
   37-42.0N 005-06.0E, 37-33.7N 005-15.8E,
   37-03.4N 005-38.0E, 36-57.2N 005-30.0E,
   36-53.3N 005-16.9E, 37-03.2N 004-48.8E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 18 JUL 13.

Reading this warning

Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
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.
Wide berth requested
Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
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 · other warnings

13 within 180 nm since 2001 · 0 in the last 12 months · 0 listed in force now

01
05
10
15
20
22

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

23 other warnings listed in force · see all

Record snapshot 2026-10-01 19:48Z; source collection times vary.

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.