Surveys

Underwater operations 14 thru 21 jun by M/V natsushima with submersible in areas between: a. 18-30N 19-00N…

Western North Pacific · Mariana Islands · HYDROPAC 1664/13

issued: 2013-06-09 19:05Z
status: cancelled 2013-06-22 00:01Z (archive)
cancels: HYDROPAC 1662/13
authority: NAVAREA XI 427/13 091133Z JUN 13.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
MARIANA ISLANDS.
1. UNDERWATER OPERATIONS 14 THRU 21 JUN
   BY M/V NATSUSHIMA WITH SUBMERSIBLE
   IN AREAS BETWEEN:
   A. 18-30N 19-00N AND 145-20E 145-55E.
   B. 16-10N 16-40N AND 145-20E 146-00E.
2. CANCEL HYDROPAC 1662/13.
3. CANCEL THIS MSG 22 JUN 13.

Timeline

Underwater operations 14 thru 21 jun by M/V natsushima with submersible in area bound by 19-00N 145-55E,…cancels · 2013-06-09
Underwater operations 14 thru 21 jun by M/V natsushima with submersible in area bound by 19-00N 145-55E,…replaced · 2013-06-09

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

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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.