Seismic survey in progress until 15 nov by M/V orient explorer towing four two mile long cables in area…
Makassar Strait · HYDROPAC 2896/11
What this record establishes
Archived notice · 2011-11-04 08:36Z
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 808/11 150533Z OCT 11 - AUSCOAST 253/11 CX 150212Z OCT 11.. Issued 2011-10-15 06:06Z. 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
- Makassar Strait. 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
- Seismic survey in progress until 26 oct by M/V orient explorer towing four two mile long cables in area…cancelled by this notice
- Nga chart 74200 (8TH ed)cancelled by this notice
- Cancel HYDROPAC 2896/11 and this msg, operations completedlater cancellation notice
Current notices and reporting history in the Makassar Strait →
- issued
- 2011-10-15 06:06Z
- status
- Archived notice
- authority
- NAVAREA XI 808/11 150533Z OCT 11 - AUSCOAST 253/11 CX 150212Z OCT 11.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- Makassar Strait
- position
- -1.344, 117.042
- vessel
- M/V ORIENT EXPLORER · 116 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
MAKASSAR STRAIT. 1. SEISMIC SURVEY IN PROGRESS UNTIL 15 NOV BY M/V ORIENT EXPLORER TOWING FOUR TWO MILE LONG CABLES IN AREA BOUND BY 01-22S 116-53E, 01-30S 117-00E, 01-20S 117-12E, 01-11S 117-05E. 2. CANCEL HYDROPAC 2888/11(74), AID RESTORED. 3. CANCEL HYDROPAC 2689/11. 4. CANCEL THIS MSG 16 NOV.
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.
Collected reports in this area · cable & pipeline work
17 within 180 nm since 2003 · 1 in the last 12 months · 1 listed in force now
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.
- Seismic survey works by S/V ramform sovereign towing twelve cables, each 10050 metre long2026-01-27
- Cable operations 17 aug until further notice by cableship ile de re in vicinity of trackline joining…2017-08-16
- Seismic survey in progress until 17 apr by M/V western monarch towing eight three mile long cables in area…2014-04-07
- Seismic survey in progress until 15 apr by M/V cgg amadeus towing eight 6000 meter long cables in area bound…2014-03-02
- Seismic survey in progress until 31 mar by M/V western monarch towing 12 four mile long cables in area bound…2014-01-23
- Seismic survey 190001Z may to 200001Z jun by M/V akademik fersman towing 9000 meter long cable in area bound…2012-05-14
Month of issue in the collected archive
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
24 cable & pipeline work listed in force · see all
Record snapshot 2026-10-01 09:40Z; 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.