Surveys
Underwater operations 03 thru 12 nov by M/V koyo maru in area bound by 19-00N 152-30E, 24-30N 152-30E,…
Western North Pacific · HYDROPAC 3201/20
- issued
- 2020-10-31 00:27Z
- status
- cancelled 2020-11-13 00:01Z (archive)
- authority
- NAVAREA XI 410/20 302330Z OCT 20.
- position
- 21.750, 156.750
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH PACIFIC. DNC 12. 1. UNDERWATER OPERATIONS 03 THRU 12 NOV BY M/V KOYO MARU IN AREA BOUND BY 19-00N 152-30E, 24-30N 152-30E, 24-30N 161-00E, 19-00N 161-00E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 13 NOV 20.
This area · survey operations
4 within 180 nm since 2007 · 0 in the last 12 months · 0 in force now
07
10
15
20
22
- Underwater operations 24 thru 30 jul by M/V kaimei with submersible in areas bound by: a. 22-40.00N…2022-07-23
- Underwater operations 24 apr thru 05 may by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…2022-04-19
- Survey operations 12 thru 30 aug by M/V shoyo towing 3000 meter long cable in area bound by 25-00N 153-00E,…2007-08-07
Season · when survey operations happen here
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
73 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.