Surveys
Underwater operations 12 thru 22 apr by M/V shinkai 6500 and M/V yokosuka in areas bound by: a. 24-00N…
Philippine Sea · Japan · HYDROPAC 1059/21
- issued
- 2021-04-07 12:49Z
- status
- cancelled 2021-04-23 00:01Z (archive)
- authority
- NAVAREA XI 117/21 071138Z APR 21.
- position
- 20.838, 134.773
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
PHILIPPINE SEA.
JAPAN.
DNC 11, DNC 12, DNC 23.
1. UNDERWATER OPERATIONS 12 THRU 22 APR
BY M/V SHINKAI 6500 AND M/V YOKOSUKA
IN AREAS BOUND BY:
A. 24-00N 135-00E, 27-00N 135-00E,
27-00N 137-30E, 24-00N 137-30E.
B. 13-00N 131-30E, 17-00N 131-30E,
17-00N 135-20E, 13-00N 135-20E.
ALTERNATE, IN AREAS BOUND BY:
C. 23-00N 137-30E, 26-00N 137-30E,
26-00N 140-00E, 23-00N 140-00E.
D. 20-50N 131-00E, 23-00N 131-00E,
23-00N 136-00E, 20-50N 136-00E.
E. 26-30N 131-00E, 27-30N 131-00E,
27-30N 133-30E, 26-30N 133-30E.
WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 23 APR 21.
This area · survey operations
11 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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05
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15
20
24
- Survey operations 14 thru 24 apr by submersible shinkai 6500 and M/V yokosuka in areas bound by: a.…2024-04-13
- Survey operations 07 thru 14 apr by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…2023-04-06
- Underwater operations 04 thru 11 oct by M/V yokosuka and M/V shinkai 6500 in areas bound by: a. 23-00.00N…2022-10-03
- Underwater operations 19 thru 27 jun by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…2022-06-18
- Submarine research operations during daylight hours daily 24 thru 29 nov by M/V kairei with submersible…2004-11-19
- Underwater operations 31 may thru 29 jun by M/V hakurei maru no 2 in areas: a. between 31-00N 32-00N and…2004-05-26
Season · when survey operations happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
75 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.