Surveys

Underwater operations 18 thru 23 aug by M/V yokosuka and submersible shinkai 6500 in areas between: a.…

HYDROPAC 1531/06

issued: 2006-08-13 10:59Z
status: cancelled 2006-08-24 00:00Z (archive)
cancels: HYDROPAC 1525/06
authority: NAVAREA XI 353/06, 352/06 13 AUG 06.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS 18 THRU 23 AUG BY
   M/V YOKOSUKA AND SUBMERSIBLE SHINKAI 6500
   IN AREAS BETWEEN:
   A. 06-00N 07-00N AND 133-30E 134-30E.
   B. 11-05N 11-10N AND 134-43E 134-48E.
2. CANCEL HYDROPAC 1525/06(GEN).
3. CANCEL THIS MSG 24 AUG.

Timeline

Loran-c northwest pacific chain, rate 8930, off aircancels · 2006-08-12
Loran-c northwest pacific chain, rate 8930, off airreplaced · 2006-08-12

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

84 survey operations in force · see all

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.