Seismic survey in progress until 02 apr by M/V orient explorer towing 6000 meter long cable in area bound by…
Arabian Sea · HYDROPAC 425/01
What this record establishes
Archived notice · 2001-03-27 14:18Z
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 VIII 171/01 IOR EGC #31 201003Z MAR 01. Issued 2001-03-20 14:05Z. 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
- Arabian 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
- issued
- 2001-03-20 14:05Z
- status
- Archived notice
- authority
- NAVAREA VIII 171/01 IOR EGC #31 201003Z MAR 01
- NAVAREA
- NAVAREA VIII · named as the source of this relay
- sea
- Arabian Sea
- position
- 23.094, 68.545
- 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
1. SEISMIC SURVEY IN PROGRESS UNTIL 02 APR BY M/V ORIENT EXPLORER TOWING 6000 METER LONG CABLE IN AREA BOUND BY 23-25.2N 068-24.0E, 22-54.5N 068-23.7E, 22-54.5N 068-45.0E, 23-05.0N 068-45.0E. WIDE BERTH REQUESTED. 2. CANCEL HYDROPAC 399/01. 3. CANCEL THIS MSG 03 APR.
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.
- 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
120 within 180 nm since 2000 · 0 in the last 12 months · 0 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.
- Pipeline operations in progess until 15 feb by tug susanna along trackline joining 22-31.60N 069-42.48E,…2024-01-16
- Pipeline operations 15 sep thru 15 jan 24 by barge leighton eclipse along trackline joining 22-31.60N…2023-09-14
- Pipeline operations 26 may thru 15 jun by barge leighton stealth, barge af 281, tug britoil 67, tug ak ship…2023-05-25
- Pipeline operations 19 may thru 15 jun by barge leighton eclipse, barge aqua float, tug susanna and tug…2023-05-18
- Pipeline operations in progress until 25 may by barge leighton stealth, M/V aht britoil 67, M/V aht ak ship…2023-02-15
- Cable operations in progress until further notice by M/V athba along trackline joining 24-41.74N 065-35.90E,…2022-04-21
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
23 cable & pipeline work listed in force · see all
Record snapshot 2026-10-03 21:10Z; 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.