Other
Hydrographic operations 242300Z to 250900Z feb within 50 miles of 40-00N 144-00E
HYDROPAC 292/01
- issued
- 2001-02-21 13:47Z
- status
- cancelled 2001-02-25 10:00Z (archive)
- self-cancels
- 2001-02-25 10:00Z
- authority
- CTG 72.4 202330Z FEB 01
- sea
- North Pacific Ocean
- position
- 40.000, 144.000 · r 50.0 nm
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HYDROGRAPHIC OPERATIONS 242300Z TO 250900Z FEB WITHIN 50 MILES OF 40-00N 144-00E. 2. CANCEL THIS MSG 251000Z FEB.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2001-02-24 23:00Z | 2001-02-25 09:00Z | — | 10 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 · other warnings
13 within 180 nm since 1993 · 0 in the last 12 months · 0 in force now
93
95
00
05
10
15
20
22
- Earthquake with magnitude of 7.3 occurred at 161437Z mar2022-03-16
- Earthquake with magnitude of 7.2 has occurred in vicinity 38-24N 141-42E at 200909Z mar2021-03-20
- Tsunami warning2011-03-11
- Tsunami warning2011-03-11
- Underwater ordnance detonations 191501Z to 201459Z jan within 50 miles of 40-00N 144-00E2002-01-15
- Hydrographic operations 2300Z to 0900Z commencing daily 14 and 16 feb within 50 miles of 40-00N 144-00E2001-02-13
Season · when other warnings 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
34 other warnings in force · see all
Other
Everything the classifier did not place elsewhere. All current other warnings →
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.