Surveys
Underwater operations 0001Z to 1200Z daily until 31 dec in area bound by 18-51.0N 108-14.0E, 18-50.2N…
South China Sea · Gulf of Tonkin · HYDROPAC 3828/14
- issued
- 2014-12-22 15:55Z
- status
- cancelled 2014-12-31 13:00Z (archive)
- self-cancels
- 2014-12-31 13:00Z
- authority
- NAVAREA XI 972/14 221129Z DEC 14.
- sea
- South China Sea
- position
- 18.818, 108.183
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
SOUTH CHINA SEA. GULF OF TONKIN. DNC 23. 1. UNDERWATER OPERATIONS 0001Z TO 1200Z DAILY UNTIL 31 DEC IN AREA BOUND BY 18-51.0N 108-14.0E, 18-50.2N 108-14.0E, 18-47.2N 108-08.0E, 18-48.0N 108-08.0E. 2. CANCEL THIS MSG 311300Z DEC 14.
This area · survey operations
14 within 180 nm since 2010 · 0 in the last 12 months · 0 in force now
10
15
19
- Survey operations 05 thru 24 apr by M/V fugro equinox in areas bound by: a. 16-26.11N 108-43.18E, 16-29.85N…2019-03-31
- Survey operations in progress until 29 oct by M/V equinox in 16-49.42N 108-24.84E2018-10-24
- Survey operations in progress until 20 oct by M/V cgg amadeus towing eight 8000 meter long cables in area…2017-09-30
- Survey operations in progress until 30 sep by M/V cgg amadeus towing eight 8000 meter long cables in area…2017-08-15
- Underwater operations 10 thru 28 aug by M/V discovery 01 in areas bound by: a. 16-09.17N 108-10.82E,…2017-08-08
- Survey operations in progress until 310900Z aug by M/V discovery 01 in areas bound by: a. 16-13.46N…2017-08-08
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
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.