Surveys

Underwater operations in progress until 15 jul vicinity of trackline joining 22-14.5N 114-39.1E, 21-31.9N…

South China Sea · HYDROPAC 1717/12

issued
2012-06-18 15:08Z
status
cancelled 2012-07-16 00:01Z (archive)
authority
NAVAREA XI 382/12 181108Z JUN 12.
position
20.309, 116.915
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

SOUTH CHINA SEA.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 15 JUL
   VICINITY OF TRACKLINE JOINING
   22-14.5N 114-39.1E, 21-31.9N 115-56.0E,
   21-12.6N 116-11.5E, 20-14.2N 116-23.3E,
   19-48.0N 117-17.0E, 18-44.9N 118-58.0E,
   18-22.5N 119-14.9E.
2. CANCEL THIS MSG 16 JUL.

This area · survey operations

16 within 180 nm since 2012 · 0 in the last 12 months · 0 in force now

12
15
20
22

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

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.