Other

Geophysical operations 21 may thru 20 aug by M/V medma along trackline joining 41-43N 012-18E, 41-42N…

Tyrrhenian Sea · HYDROLANT 1460/01

What this record establishes

Archived notice · 2001-05-25 14:45Z

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) · MARIDIPART TARANTO 389/01 200900Z MAY 01; MARIDIPART TARANTO 391/01 200207B MAY 01. Issued 2001-05-20 09:10Z. 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
Tyrrhenian Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Tyrrhenian Sea →

issued
2001-05-20 09:10Z
status
Archived notice
authority
MARIDIPART TARANTO 389/01 200900Z MAY 01; MARIDIPART TARANTO 391/01 200207B MAY 01
issued by
MARIDIPART TARANTO
sea
Tyrrhenian Sea
position
40.734, 13.821
vessel
M/V MEDMA · 5 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. GEOPHYSICAL OPERATIONS 21 MAY THRU 20 AUG BY M/V MEDMA
   ALONG TRACKLINE JOINING 41-43N 012-18E, 41-42N 012-17E,
   41-39N 012-15E, 41-38N 012-15E, 41-37N 012-15E, 41-36N 012-15E,
   41-34N 012-15E, 41-33N 012-15E, 41-32N 012-16E, 41-26N 012-20E,
   41-25N 012-22E, 41-16N 012-36E, 41-09N 012-53E, 41-08N 013-00E,
   41-07N 013-06E, 41-08N 013-09E, 41-09N 013-10E, 41-12N 013-12E,
   41-15N 013-12E, 41-16N 013-12E, 41-15N 013-14E, 41-14N 013-16E,
   41-11N 013-19E, 41-09N 013-21E, 41-03N 013-25E, 40-41N 013-40E,
   40-36N 013-51E, 40-36N 013-53E, 40-37N 013-58E, 40-39N 014-03E,
   40-41N 014-04E, 40-43N 014-05E, 40-47N 014-08E, 40-48N 014-10E,
   40-47N 014-09E, 40-47N 014-08E, 40-14N 014-06E, 40-35N 014-05E,
   40-33N 014-05E, 40-30N 014-09E, 40-28N 014-10E, 40-28N 014-18E,
   40-31N 014-41E, 40-32N 014-45E, 40-33N 014-46E, 40-35N 014-47E,
   40-36N 014-48E, 40-37N 014-50E, 40-36N 014-49E, 40-32N 014-46E,
   40-31N 014-46E, 40-29N 014-43E, 40-26N 014-41E, 40-20N 014-40E,
   40-11N 014-41E, 40-08N 014-45E, 39-55N 015-01E, 39-53N 015-05E.
2. CANCEL HYDROLANT 1455/01(54).
3. CANCEL THIS MSG 21 AUG.

Reading this warning

Track line joining
Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
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.
HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
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

26 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
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

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

21 other warnings listed in force · see all

Record snapshot 2026-10-03 11:47Z; 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.