Surveys

Underwater operations 16 thru 22 jun by M/V natsushima with submersible in areas between: a. 32-02N 32-10N…

Western North Pacific · Japan · Nampo Shoto · HYDROPAC 1710/11

issued: 2011-06-11 11:21Z
status: cancelled 2011-06-23 00:01Z (archive)
authority: NAVAREA XI 391/11 110733Z JUN 11.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
JAPAN.
NAMPO SHOTO.
1. UNDERWATER OPERATIONS 16 THRU 22 JUN BY
   M/V NATSUSHIMA WITH SUBMERSIBLE IN
   AREAS BETWEEN:
   A. 32-02N 32-10N AND 139-46E 139-56E.
   B. 28-33N 28-35N AND 140-37E 140-40E.
2. CANCEL THIS MSG 23 JUN.

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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.