Surveys
Russia conducts survey operations in the Sea of Japan from 21 to 26 September within five miles of 42-31.00N 131-53.00E, requesting vessels keep clear.
Sea of Japan · Russia · HYDROPAC 2691/26
- issued
- 2026-09-17 09:26Z
- status
- cancelled 2026-09-17 14:30Z (dropped from inforce)
- self-cancels
- 2026-09-26 11:00Z
- sea
- Japan Sea
- position
- 42.517, 131.883 · r 5.0 nm
- source
- nga_inforce · first seen 2026-09-18 06:17Z
Original warning text
SEA OF JAPAN. RUSSIA. 1. SURVEY OPERATIONS 210001Z TO 211200Z AND 251400Z TO 261000Z SEP IN AREA WITHIN FIVE MILES OF 42-31.00N 131-53.00E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 261100Z SEP 26.
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2026-09-21 00:01Z | 2026-09-21 12:00Z | — | 11 h 59 |
| 2026-09-25 14:00Z | 2026-09-26 10:00Z | — | 20 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
This area · survey operations
17 within 180 nm since 2003 · 3 in the last 12 months · 0 in force now
03
05
10
15
20
25
26
- Survey operations in progress until 291400Z sep in area bound by 42-14.00N 131-42.00E, 42-14.00N 132-10.00E,…2026-09-10
- Survey operations 100400Z to 291400Z sep by vessel in area bound by 42-14.00N 131-42.00E, 42-14.00N…2026-09-09
- Survey operations 27 jul thru 20 aug in area bound by 45-26.30N 139-13.20E, 47-26.10N 141-53.40E, 42-32.00N…2022-07-25
- Underwater operations 251400Z to 301400Z jun in area bound by 43-04.0N 134-27.6E, 43-04.0N 134-42.2E,…2021-06-25
- Underwater operations 162100Z to 232100Z apr in area bound by 43-04.0N 134-27.6E, 43-04.0N 134-42.2E,…2021-04-14
- Underwater operations 282100Z mar to 052100Z apr in area bound by 43-04.0N 134-27.6E, 43-04.0N 134-42.2E,…2021-03-23
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
52 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.