Seismic survey 211200Z jan to 150001Z feb by S/V zephyr 1 in area bound by 10-25N 103-19E, 09-10N 102-38E,…
Gulf of Thailand · HYDROPAC 138/07
What this record establishes
Archived notice · 2007-02-15 01:01Z
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 29/07 21 JAN 07.. Issued 2007-01-21 01:28Z. 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 Thailand. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Current notices and reporting history in the Gulf of Thailand →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2007-01-21 12:00Z | 2007-02-15 00:01Z | — | 588 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
- 2007-01-21 01:28Z
- status
- Archived notice
- self-cancels
- 2007-02-15 01:01Z
- authority
- NAVAREA XI 29/07 21 JAN 07.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- Gulf of Thailand
- position
- 10.383, 102.675
- vessel
- S/V ZEPHYR 1 · 39 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SEISMIC SURVEY 211200Z JAN TO 150001Z FEB BY S/V ZEPHYR 1 IN AREA BOUND BY 10-25N 103-19E, 09-10N 102-38E, 09-10N 102-27E, 10-25N 102-01E, 11-29N 102-40E, 11-29N 103-00E. 2. CANCEL THIS MSG 150101Z FEB.
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.
- 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.
- 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
23 within 180 nm since 2005 · 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 lodbrog in area within one mile of 10-03.60N…2022-08-21
- Cable operations 301700Z until further notice by cableship lodbrog in area bound by 12-22.00N 100-44.30E,…2022-07-29
- Cable operations in progress until further notice along tracklines joining: a. 10-00.63N 104-00.77E,…2018-05-24
- Cable operations 31 jul until further notice by cableship rene descartes in vicinity of trackline joining…2017-07-29
- Cable operations 270800Z apr until further notice by cableship rene descartes in vicinity of trackline…2017-04-26
- Cable repair operations in progress until 18 mar by cableship asean explorer along trackline joining…2016-03-16
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 08:50Z; 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.