GD0023 SOUTH CHINA SEA SEISMIC SURVEY CARRY OUT BY M/V “FA XIAN 6” IN AREA BOUNDED BY 22-06-42N 116-19-53E，22-06-42N 116-36-36E，22-02-06N 116-45-48E，21-30-54N 116-45-54E，21-30-54N 116-39-48E AND 21-42-18N 116-19-53E FROM 4 FEB. TO 18 MAY THE VESSEL TOWING 10 CABLES LENGTH 6KM WITH ORANGE-YELLOW VISUAL BUOY AT EACH CABLE END QUICK FLASHING WHITE LIGHT AT NIGHT SPEED 4KN TO 5KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED CROSSING THE CABLES AREA PROHIBITED GUANGDONG MSA CHINA