Surveys

Survey operations 1600Z to 2200Z daily 28 may thru 04 jun by M/V northern endeavour towing two mile long…

East China Sea · Japan · HYDROPAC 1576/16

issued: 2016-05-28 05:05Z
status: cancelled 2016-05-28 09:50Z (archive)
self-cancels: 2016-06-04 23:00Z
authority: NORTHERN ENDEAVOUR 280152Z MAY 16.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EAST CHINA SEA.
JAPAN.
DNC 23.
1. SURVEY OPERATIONS 1600Z TO 2200Z DAILY
   28 MAY THRU 04 JUN BY M/V NORTHERN ENDEAVOUR
   TOWING TWO MILE LONG CABLE IN AREA BETWEEN
   29-48N 29-50N AND 128-40E 129-00E.
   THREE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 042300Z JUN 16.

Activity windows · 8 in this warning

opens (UTC)	closes (UTC)	local	length
2016-05-28 16:00Z	2016-05-28 22:00Z	—	6 h
2016-05-29 16:00Z	2016-05-29 22:00Z	—	6 h
2016-05-30 16:00Z	2016-05-30 22:00Z	—	6 h
2016-05-31 16:00Z	2016-05-31 22:00Z	—	6 h
2016-06-01 16:00Z	2016-06-01 22:00Z	—	6 h
2016-06-02 16:00Z	2016-06-02 22:00Z	—	6 h
2016-06-03 16:00Z	2016-06-03 22:00Z	—	6 h
2016-06-04 16:00Z	2016-06-04 22:00Z	—	6 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

Timeline

Cancel HYDROPAC 1547/16(82), vessel locatedcancelled by · 2016-05-28

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.