Surveys
Underwater operations in progress until 19 apr by M/V yokosuka with submersible: a. in area bound by 34-00N…
Western North Pacific · Japan · HYDROPAC 1220/17
- issued
- 2017-04-05 12:17Z
- status
- cancelled 2017-04-20 00:01Z (archive)
- authority
- NAVAREA XI 234/17 041202Z APR 17.
- position
- 34.412, 138.472
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH PACIFIC.
JAPAN.
DNC 12.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 19 APR
BY M/V YOKOSUKA WITH SUBMERSIBLE:
A. IN AREA BOUND BY
34-00N 138-00E, 35-05N 138-36E,
35-05N 138-43E, 34-00N 138-43E.
B. IN AREA BETWEEN
34-50N 35-10N AND 139-11E 139-30E.
C. IN AREA BETWEEN
32-00N 32-35N AND 139-30E 140-00E.
D. IN AREA BETWEEN
27-00N 28-00N AND 142-30E 143-12E.
2. CANCEL THIS MSG 20 APR 17.
This area · survey operations
12 within 180 nm since 2006 · 0 in the last 12 months · 0 in force now
06
10
15
19
- Underwater operations in progress until 03 mar by M/V shinkai 6500 in area bounded by: a. 34-00N 138-00E…2019-02-27
- Underwater operations 23 thru 28 mar by M/V yokosuka with submersible in areas: a. bound by 34-00.0N…2018-03-18
- Underwater operations 20 thru 24 jul by M/V yokosuka with submersible: a. in area bound by 34-55.0N…2016-07-19
- Survey operations 07 and 08 jun by M/V geo resolution in area bound by 33-50N 140-51E, 31-50N 140-52E,…2016-06-07
- Survey operations 06 and 07 jun by M/V geo resolution in area bound by 34-39N 140-09E, 34-11N 140-40E,…2016-06-05
- Survey operations in progress until 06 jun by M/V geo resolution towing equipment in area bound by 35-01N…2016-06-05
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.