Cable ops

Seismic survey in progress until 22 oct by M/V le suroit in area bound by 37-10N 015-32E, 37-36N 017-27E,…

Ionian Sea · HYDROLANT 2565/13

What this record establishes

Archived notice · 2013-10-21 13:40Z

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 491/13 161207Z OCT 13.. Issued 2013-10-16 12:51Z. 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
Ionian Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Ionian Sea →

issued
2013-10-16 12:51Z
status
Archived notice
authority
NAVAREA III 491/13 161207Z OCT 13.
NAVAREA
NAVAREA III · named as the source of this relay
sea
Ionian Sea
position
36.786, 16.829
vessel
M/V LE SUROIT · 66 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN MEDITERRANEAN SEA.
IONIAN SEA.
SICILY.
1. SEISMIC SURVEY IN PROGRESS UNTIL 22 OCT
   BY M/V LE SUROIT IN AREA BOUND BY
   37-10N 015-32E, 37-36N 017-27E,
   35-54N 017-58E, 35-50N 017-58E,
   36-40N 015-32E.
   THREE MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 2506/13.
3. CANCEL THIS MSG 23 OCT 13.

Reading this warning

Seismic survey
A survey that maps the rock beneath the seabed with sound pulses from air guns, recorded on streamers kilometres long.
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.
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 · cable & pipeline work

84 within 180 nm since 1998 · 2 in the last 12 months · 1 listed in force now

98
00
05
10
15
20
25
26

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 cable & pipeline work listed in force · see all

Record snapshot 2026-10-03 08:54Z; source collection times vary.

Cable ops

Cable laying, pipeline and seismic operations. All current cable & pipeline work →

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.