Seismic survey 041200Z to 100001Z apr by M/V mezen towing 8300 meter long cable in area bound by 07-22.5S…
Indian Ocean · HYDROPAC 680/10
What this record establishes
Archived notice · 2010-04-08 14:12Z
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 213/10 04 APR 10. Issued 2010-04-04 04:55Z. 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
- Indian Ocean. 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
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2010-04-04 12:00Z | 2010-04-10 00:01Z | — | 132 h 01 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2010-04-04 04:55Z
- status
- Archived notice
- self-cancels
- 2010-04-10 01:01Z
- authority
- NAVAREA XI 213/10 04 APR 10
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- Indian Ocean
- position
- -7.968, 107.107
- vessel
- M/V MEZEN · 125 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN INDIAN OCEAN. INDONESIA. JAVA. 1. SEISMIC SURVEY 041200Z TO 100001Z APR BY M/V MEZEN TOWING 8300 METER LONG CABLE IN AREA BOUND BY 07-22.5S 105-40.0E, 07-52.5S 109-00.0E, 08-10.0S 109-00.0E, 08-30.0S 106-00.0E. 2. CANCEL HYDROPAC 423/10. 3. CANCEL THIS MSG 100101Z 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.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
- 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
21 within 180 nm since 1999 · 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.
- Cable operations in progress until further notice by cableship teneo in 05-51.20S 106-03.80E2024-02-16
- Cable operations in progress until 231000Z jul by M/V teneo in area bound by 06-50S 104-30E, 06-50S 104-40E,…2020-07-12
- Cable operations in progress until 201000Z jul by M/V teneo in area bound by 06-49.8S 104-31.5E, 06-51.2S…2020-07-08
- Cable operations 071000Z thru 171000Z jul by M/V teneo in area bound by 06-49.8S 104-31.5E, 06-51.2S…2020-07-06
- Cable operations in progress until further notice by cableship ile de brehat in vicinity of 10-25S 105-40E2019-01-19
- Cable operations in progress until further notice by cableship ile de re in vicinity of trackline between…2018-12-13
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
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 2026-10-01 22:21Z; 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.