Cable ops

Seismic survey in progress until 13 jul by M/V western legend towing eight 5000 meter long cables in area…

Persian Gulf · HYDROPAC 937/00

What this record establishes

Archived notice · 2000-06-27 05:23Z

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) · MENAS 097/00 26 JUN 00; MENAS 098/00 26 JUN 00. Issued 2000-06-26 13:40Z. 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
Persian Gulf. 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 Persian Gulf →

issued
2000-06-26 13:40Z
status
Archived notice
authority
MENAS 097/00 26 JUN 00; MENAS 098/00 26 JUN 00
issued by
MENAS
sea
Persian Gulf
position
25.751, 55.439
vessel
M/V WESTERN LEGEND · 9 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. SEISMIC SURVEY IN PROGRESS UNTIL 13 JUL BY M/V WESTERN LEGEND
   TOWING EIGHT 5000 METER LONG CABLES IN AREA BOUND BY
   25-41.45N 055-17.41E, 25-55.20N 055-27.77E,
   25-48.32N 055-35.12E, 25-35.12N 055-25.19E.
2. CANCEL HYDROPAC 598/00.
3. CANCEL THIS MSG 14 JUL.

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.
Towed array / streamer
Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
Tow / towing
A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
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.
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.

All warning terms →

Collected reports in this area · cable & pipeline work

102 within 180 nm since 1998 · 3 in the last 12 months · 0 listed in force now

98
00
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

23 cable & pipeline work listed in force · see all

Record snapshot 2026-10-03 05:44Z; 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.

Seismic survey in progress until 13 jul by M/V western legend towing eight 5000 meter long cables in area… — HYDROPAC 937/00 · seahazards