Underwater operations in progress until 30 jun in area bound by 19-58-00N 115-22-15E, 19-57-30N 115-26-30E,…
South China Sea · HYDROPAC 1591/12
What this record establishes
Archived notice · 2012-07-01 00:01Z
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 351/12 070626Z JUN 12.. Issued 2012-06-07 08:48Z. 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
- South China 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.
Current notices and reporting history in the South China Sea →
- issued
- 2012-06-07 08:48Z
- status
- Archived notice
- authority
- NAVAREA XI 351/12 070626Z JUN 12.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- South China Sea
- position
- 19.924, 115.441
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTH CHINA SEA. 1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 30 JUN IN AREA BOUND BY 19-58-00N 115-22-15E, 19-57-30N 115-26-30E, 19-56-45N 115-28-45E, 19-54-15N 115-30-30E, 19-52-45N 115-26-45E, 19-53-30N 115-25-00E. 2. CANCEL THIS MSG 01 JUL.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- 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 · survey operations
6 within 180 nm since 2012 · 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.
- Salvage operations in progress until further notice in vicinity 17-50N 117-36E by U.S2022-01-29
- Salvage operations in progress until further notice in vicinity 17-50N 117-36E2022-01-29
- Survey operations in progress until further notice by M/V pgs apollo towing ten five mile long cables in…2017-08-20
- Underwater operations in progress until 25 may by M/V hai yang shi you 941 within one mile of 21-48-46N…2013-05-08
- Underwater operations in progress until 15 jul vicinity of trackline joining 22-14.5N 114-39.1E, 21-31.9N…2012-06-18
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
56 survey operations listed in force · see all
Record snapshot 2026-10-03 03:05Z; source collection times vary.
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
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.