Cable ops

Seismic survey in progress until 15 jan 12 by M/V pacific finder, trb elnusa finder and M/V seismic…

South China Sea · HYDROPAC 2851/11

What this record establishes

Archived notice · 2011-11-08 08:05Z

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 XI 799/11 110801Z OCT 2011.. Issued 2011-10-11 08:35Z. 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
South China 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 South China Sea →

issued
2011-10-11 08:35Z
status
Archived notice
authority
NAVAREA XI 799/11 110801Z OCT 2011.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
South China Sea
position
8.187, 116.421
vessels
M/V PACIFIC FINDER · 24 messagesM/V SEISMIC SUPPORTER
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SOUTH CHINA SEA.
1. SEISMIC SURVEY IN PROGRESS UNTIL 15 JAN 12
   BY M/V PACIFIC FINDER, TRB ELNUSA FINDER
   AND M/V SEISMIC SUPPORTER
   IN AREA BOUND BY
   08-02-51N 115-59-55E,
   08-35-35N 116-43-22E,
   08-26-25N 116-50-19E,
   08-18-15N 116-39-27E,
   08-12-36N 116-43-44E,
   07-48-34N 116-11-09E,
   08-02-51N 115-59-55E.
2. CANCEL HYDROPAC 2445/11(71,93).
3. CANCEL THIS MSG 16 JAN 2012.

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.
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

41 within 180 nm since 2000 · 0 in the last 12 months · 0 listed in force now

00
05
10
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

24 cable & pipeline work listed in force · see all

Record snapshot 2026-10-02 00:08Z; 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.