Surveys
Underwater operations 05 thru 11 mar by M/V shinkai 6500 and M/V yokosuka in areas bound by: a. 34-54N…
Western North Pacific · Philippine Sea · Japan · HYDROPAC 742/20
- issued
- 2020-03-04 12:54Z
- status
- cancelled 2020-03-12 00:01Z (archive)
- authority
- NAVAREA XI 81/20 041133Z MAR 20.
- position
- 31.861, 141.020
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH PACIFIC.
PHILIPPINE SEA.
JAPAN.
DNC 12.
1. UNDERWATER OPERATIONS 05 THRU 11 MAR
BY M/V SHINKAI 6500 AND M/V YOKOSUKA
IN AREAS BOUND BY:
A. 34-54N 139-13E, 35-07N 139-13E,
35-07N 139-25E, 34-54N 139-25E.
B. 33-00N 140-50E, 34-00N 140-50E,
34-00N 141-50E, 33-00N 141-50E.
C. 32-00N 139-30E, 32-35N 139-30E,
32-35N 140-00E, 32-00N 140-00E.
D. 34-00N 138-00E, 34-00N 138-43E,
35-05N 138-43E, 35-05N 138-36E.
E. 27-00N 142-30E, 28-00N 142-30E,
28-00N 143-12E, 27-00N 143-12E.
WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 12 MAR 20.
This area · survey operations
38 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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00
05
10
15
20
24
- Underwater operations 01 thru 07 mar by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…2024-02-29
- Survey operations in progress until 27 nov by M/V kaimei, towing 12000 meter long cable in area bound by…2022-11-20
- Underwater operations 13 thru 23 jun by M/V yokosuka with submersible in area bound by 28-30N 138-20E,…2021-06-12
- Survey operations 11 thru 14 jun by M/V kaimei towing 5550 meter long cable in area bound by 30-00N 141-00E,…2020-06-10
- Survey operations 28 oct thru 01 nov by M/V kaimei towing 7000 meter long cable in area bound by 33-00N…2019-10-27
- Survey operations 31 oct thru 09 nov by M/V kaimei in area bound by 33-00N 139-00E, 28-00N 139-00E, 28-00N…2018-10-29
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
- Discoloured water observed in vicinity of 31-26.4N 140-03.0E at 180545Z sepVolcanic · 55.6 nm
- 180500Z issued at 190200Z sepVolcanic · 55.7 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.