Surveys
Drilling operations in progress until 10 may by drilling vessel nanhai 4 within 2000 meters of 18-36.3N…
South China Sea · HYDROPAC 1233/11
- issued
- 2011-04-22 02:28Z
- status
- cancelled 2011-05-11 00:01Z (archive)
- cancels
- HYDROPAC 1225/11
- authority
- NAVAREA XI 262/11 220202Z APR 11.
- sea
- South China Sea
- position
- 18.605, 107.673 · r 1.1 nm
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
SOUTH CHINA SEA. 1. DRILLING OPERATIONS IN PROGRESS UNTIL 10 MAY BY DRILLING VESSEL NANHAI 4 WITHIN 2000 METERS OF 18-36.3N 107-40.4E. 2. CANCEL HYDROPAC 1225/11. 3. CANCEL THIS MSG 11 MAY.
This area · survey operations
13 within 180 nm since 2011 · 0 in the last 12 months · 0 in force now
11
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
Timeline
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
83 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.