Surveys

Underwater operations in progress until 31 dec in area bound by 52-10-30N 141-31-54E, 52-12-14N 141-32-12E,…

Tatar Strait · Sakhalin · Russia · HYDROPAC 1109/20

issued
2020-04-06 09:36Z
status
cancelled 2021-01-01 00:01Z (archive)
authority
VLADIVOSTOK 69/20 060912Z APR 20.
sea
Sea of Okhotsk
position
52.197, 141.591
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

TATAR STRAIT.
SAKHALIN.
RUSSIA.
DNC 24.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 31 DEC
   IN AREA BOUND BY
   52-10-30N 141-31-54E, 52-12-14N 141-32-12E,
   52-12-48N 141-39-00E, 52-11-57N 141-40-05E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 01 JAN 21.

This area · survey operations

128 within 180 nm since 2000 · 2 in the last 12 months · 2 in force now

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05
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20
25
26

Season · when survey operations happen here

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F
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A
M
J
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month of issue, all years in the archive

Nearby now · within 120 nm

Worldwide now

86 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.