Cable ops

Seismic survey in progress until 21 oct by M/V osprey explorer, M/V northern explorer and M/V hawk explorer…

Gulf of Mexico · NAVAREA IV 640/15

What this record establishes

Archived notice · 2015-08-26 20:30Z

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) · MEXICO IV 144/15 042118Z AUG 15.. Issued 2015-08-04 22:23Z. 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
Gulf of Mexico. 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 Gulf of Mexico →

issued
2015-08-04 22:23Z
status
Archived notice
authority
MEXICO IV 144/15 042118Z AUG 15.
NAVAREA
NAVAREA IV
issued by
MEXICO IV
sea
Gulf of Mexico
position
22.632, -92.013
vessels
M/V HAWK EXPLORER · 214 messagesM/V NORTHERN EXPLORER · 69 messagesM/V OSPREY EXPLORER · 72 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NORTHWESTERN CARIBBEAN SEA.
GULF OF MEXICO.
BAY OF CAMPECHE.
1. SEISMIC SURVEY IN PROGRESS UNTIL 21 OCT
   BY M/V OSPREY EXPLORER, M/V NORTHERN EXPLORER
   AND M/V HAWK EXPLORER TOWING 12000 METER LONG
   CABLE IN AREA BOUND BY
   22-19.80N 086-00.60W, 21-57.00N 085-55.80W, 
   21-36.00N 085-51.00W, 20-04.92N 085-34.80W, 
   20-14.40N 085-05.40W, 20-00.00N 084-55.20W,
   19-32.40N 084-38.40W, 19-05.40N 085-10.80W,
   18-12.00N 085-33.60W, 17-51.60N 086-07.80W,
   18-04.80N 087-09.60W, 18-07.20N 087-21.00W,
   20-46.80N 086-33.60W, 21-36.60N 086-28.20W,
   22-04.20N 086-58.20W, 21-40.20N 089-06.60W,
   21-07.80N 090-33.60W, 19-51.00N 090-48.00W,
   19-20.40N 091-04.20W, 18-34.80N 092-52.20W,
   18-20.40N 094-20.40W, 18-36.06N 094-55.20W,
   18-44.40N 095-11.40W, 18-49.80N 095-41.40W,
   18-49.80N 095-41.40W, 19-12.00N 095-57.60W,
   19-24.00N 096-12.60W, 19-51.00N 096-25.60W,
   21-00.00N 097-12.00W, 21-31.20N 097-13.80W,
   22-14.40N 097-43.80W, 24-46.20N 097-30.00W,
   26-07.20N 096-56.40W, 26-07.20N 096-26.40W,
   26-07.80N 095-04.08W, 26-44.40N 094-37.80W,
   26-16.20N 093-50.40W, 26-01.08N 094-01.80W,
   25-55.80N 086-43.20W, 25-12.60N 086-33.00W,
   24-56.40N 086-56.40W, 24-09.60N 086-39.00W,
   23-30.60N 086-24.00W, 23-52.20N 086-20.40W,
   22-45.60N 086-06.60W, 22-19.80N 086-01.02W.
   EIGHT MILE BERTH REQUESTED.
2. CANCEL NAVAREA IV 515/15, 527/15, 632/15.
3. CANCEL THIS MSG 22 OCT 15.

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.
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.
NAVAREA
One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.
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

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

12
15
16

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

23 cable & pipeline work listed in force · see all

Record snapshot 2026-10-02 15:41Z; 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.