Underwater operations 28 jul thru 03 aug by M/V natsushima with submersible within: a. three miles of…
Philippine Sea · HYDROPAC 1505/10
What this record establishes
Archived notice · 2010-08-04 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 544/10 230759Z JUL 10.. Issued 2010-07-23 13:51Z. 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
- Philippine Sea. The parsed report position is 20.524, 143.682. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Current notices and reporting history in the Philippine Sea →
- issued
- 2010-07-23 13:51Z
- status
- Archived notice
- authority
- NAVAREA XI 544/10 230759Z JUL 10.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- Philippine Sea
- position
- 20.524, 143.682
- vessel
- M/V NATSUSHIMA · 39 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH PACIFIC. 1. UNDERWATER OPERATIONS 28 JUL THRU 03 AUG BY M/V NATSUSHIMA WITH SUBMERSIBLE WITHIN: A. THREE MILES OF 26-42.5N 141-04.5E. B. FIVE MILES OF 23-05.0N 142-20.0E. C. FIVE MILES OF 21-29.3N 144-02.5E. D. FIVE MILES OF 21-20.0N 144-12.0E. E. FIVE MILES OF 15-55.7N 145-40.0E. F. FIVE MILES OF 14-36.0N 144-46.5E. 2. CANCEL THIS MSG 04 AUG.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- 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
8 within 180 nm since 2003 · 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 02 thru 09 oct by M/V yokosuka with submersible shinkai 6500 in areas within two miles of:…2024-10-01
- Underwater operations 22 thru 26 nov, alternate 27 nov thru 01 dec by M/V ocean guardian in area bound by…2022-11-21
- Underwater operations in progress until 02 nov by unmanned seven meter vessel in vicinity of trackline…2018-10-26
- Underwater operations 27 may thru 07 jun by M/V yokosuka with submersible in areas: a. between 26-30N 30-00N…2009-05-23
- Survey operations 15 may thru 06 jun by M/V kairei towing 5500 meter long cable in areas: a. between 27-10N…2006-05-10
- Submarine research operations during daylight hours daily 22 oct thru 04 nov by M/V natsushima and…2005-10-17
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
55 survey operations listed in force · see all
Record snapshot 2026-10-02 07:16Z; 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.