Underwater operations in progress until 222300Z apr in area bound by 13-17.2S 076-21.2W, 13-17.9S 076-20.5W,…
South Pacific Ocean · HYDROPAC 1324/18
What this record establishes
Archived notice · 2018-04-23 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 XVI 60/18 062330Z APR 18.. Issued 2018-04-07 00:17Z. 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 Pacific 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.
Current notices and reporting history in the South Pacific Ocean →
- issued
- 2018-04-07 00:17Z
- status
- Archived notice
- self-cancels
- 2018-04-23 00:01Z
- authority
- NAVAREA XVI 60/18 062330Z APR 18.
- NAVAREA
- NAVAREA XVI · named as the source of this relay
- sea
- South Pacific Ocean
- position
- -13.299, -76.354
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN SOUTH PACIFIC. PERU. DNC 07. 1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 222300Z APR IN AREA BOUND BY 13-17.2S 076-21.2W, 13-17.9S 076-20.5W, 13-18.7S 076-21.2W, 13-17.9S 076-22.0W. 2. CANCEL THIS MSG 230001Z APR 18.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- 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 · survey operations
12 within 180 nm since 2002 · 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.
- Survey operations in progress until 070500Z apr in area bound by 12-03.17S 077-14.34W, 12-03.17S 077-13.83W,…2020-02-20
- Underwater operations in progress until 26 may by M/V al idrisi in area bound by 11-59.70S 077-10.14W,…2013-04-29
- Underwater operations in progress until 30 jun by M/V filippo brunelleschi in area bound by 12-02-34.5S…2010-12-18
- Survey operations in progress until 22 aug by M/V gulf supplier in area bound by 11-17S 077-39W, 10-57S…2010-06-17
- Oceanographic works in progress until 03 jan 07 by M/V gulf supplier towing three 3000 meter long cables in…2006-10-16
- Oceanographic works in progress until 15 oct by M/V gulf supplier towing three 3000 meter long cables in…2006-07-29
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
55 survey operations listed in force · see all
Record snapshot 2026-10-02 05:32Z; 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.