Seismic survey 01 jun thru 30 jul by M/V geo baltic in areas bound by: a. 35-21.9N 129-57.3E, 35-28.9N…
Yellow Sea · HYDROPAC 912/04
What this record establishes
Archived notice · 2004-07-31 00:00Z
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 235/04 270814Z MAY 04. Issued 2004-05-27 13:20Z. 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
- Yellow 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.
- issued
- 2004-05-27 13:20Z
- status
- Archived notice
- authority
- NAVAREA XI 235/04 270814Z MAY 04
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- Yellow Sea
- position
- 35.460, 123.768
- vessel
- M/V GEO BALTIC · 33 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SEISMIC SURVEY 01 JUN THRU 30 JUL BY
M/V GEO BALTIC IN AREAS BOUND BY:
A. 35-21.9N 129-57.3E, 35-28.9N 130-12.6E,
35-22.7N 130-16.8E, 35-18.6N 130-08.0E,
35-20-7N 130-06.6E, 35-17.8N 130-00.3E.
B. 35-28.5N 123-38.1E, 35-34.3N 123-44.9E,
35-26.7N 123-54.1E, 35-20.9N 123-47.4E.
2. CANCEL THIS MSG 31 JUL.
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.
- 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
45 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 06 jun by cableship peter faber in area bound by 33-48.60N 124-37.20E,…2023-05-27
- Cable operations by cableship kddi ocean link 31 mar thru 05 apr, alternate 06 thru 08 apr in area bound by…2022-03-26
- Cable operations 10 thru 15 nov, alternate 16 thru 21 nov by cableship fu hai along trackline joining…2021-11-09
- Cable operations until 29 dec, alternate 30 dec thru 08 jan 21 by cableship kddi ocean link in area bound by…2020-12-26
- Cable operations 07 thru 18 dec, alternate 19 thru 24 dec by cableship kddi ocean link in area bound by…2020-12-06
- Cable operations 04 thru 18 dec, alternate 19 thru 28 dec by cableship bold maverick in area bound by…2020-12-03
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
25 cable & pipeline work listed in force · see all
Record snapshot 2026-09-28 15:09Z; 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.