Surveys
Underwater operations 13 thru 23 jun by M/V yokosuka with submersible in area bound by 28-30N 138-20E,…
Philippine Sea · Japan · HYDROPAC 1741/21
- issued
- 2021-06-12 12:00Z
- status
- cancelled 2021-06-24 00:01Z (archive)
- authority
- NAVAREA XI 193/21 121134Z JUN 21.
- position
- 30.583, 139.667
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
PHILIPPINE SEA. JAPAN. DNC 12. 1. UNDERWATER OPERATIONS 13 THRU 23 JUN BY M/V YOKOSUKA WITH SUBMERSIBLE IN AREA BOUND BY 28-30N 138-20E, 32-40N 138-20E, 32-40N 141-00E, 28-30N 141-00E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 24 JUN 21.
This area · survey operations
46 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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- Underwater operations 04 thru 21 may by submersible shinkai 6500 and M/V yokosuka in area bound by 28-22.00N…2024-05-03
- Underwater operations 01 thru 07 mar by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…2024-02-29
- Underwater operations 24 thru 28 aug by M/V yokosuka with submersible shinkai 6500 in area bound by…2023-08-23
- Underwater operations 20 thru 27 sep by M/V shinkai 6500, mother ship, and yokosuka with subersible in area…2022-09-19
- Underwater operations 05 thru 11 mar by M/V shinkai 6500 and M/V yokosuka in areas bound by: a. 34-54N…2020-03-04
- 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
Season · when survey operations happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
- 180500Z issued at 190200Z sepVolcanic · 55 nm
- Discoloured water observed in vicinity of 31-26.4N 140-03.0E at 180545Z sepVolcanic · 55.1 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.