Surveys
Underwater operations by M/V thalassa: a. 05 aug in 37-36N 038-22W
North Atlantic · Azores · HYDROLANT 1789/12
- issued
- 2012-08-04 18:53Z
- status
- cancelled 2012-08-08 00:01Z (archive)
- self-cancels
- 2012-08-08 00:01Z
- cancels
- HYDROLANT 1779/12
- authority
- NAVAREA II 246/12 041627Z AUG 12.
- position
- 38.028, -34.794
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
NORTH ATLANTIC. AZORES. 1. UNDERWATER OPERATIONS BY M/V THALASSA: A. 05 AUG IN 37-36N 038-22W. B. 06 AUG IN 39-25N 034-06W. C. 07 AUG IN 37-04N 031-55W. 2. CANCEL HYDROLANT 1779/12. 3. CANCEL THIS MSG 080001Z AUG 12.
This area · survey operations
21 within 180 nm since 2002 · 0 in the last 12 months · 0 in force now
02
05
10
15
16
- Underwater operations 10 thru 23 jun by M/V thalassa within four miles of: a. 37-04.85N 031-55.18W2016-06-06
- Underwater operations 10 thru 23 jun by M/V thalassa within four miles of: a. 37-04.85N 031-55.18W2016-06-06
- Underwater operations in progress until 192359Z jun by M/V le suroit in: a. 37-04.9N 031-55.2W2014-06-10
- Underwater operations 03 thru 21 aug by M/V pourquoi pas with submersible along trackline joining 37-51N…2013-08-02
- Underwater operations by M/V thalassa: a. 05 aug in 37-36N 038-22W2012-08-04
- Underwater operations by M/V thalassa: a. 04 and 05 aug in 33-27N 032-24W2012-08-03
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
Timeline
- Underwater operations by M/V thalassa: a. 04 and 05 aug in 33-27N 032-24Wcancels · 2012-08-03
- Underwater operations by M/V thalassa: a. 04 and 05 aug in 33-27N 032-24Wreplaced · 2012-08-03
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.