GD0187 SOUTH CHINA SEA SEISMIC SURVEY BY M/V “HAI YANG SHI YOU 721” IN AREA BOUNDED BY 20-15-50.1N 113-18-20.5E，20-16-08.3N 113-33-15.1E，19-59-54.1N 113-33-36.4E，20-00-13.3N 113-50-47.2E，19-31-15.5N 113-51-21.3E AND 19-31-11.7N 113-19-22.6E FROM 14 SEP. TO 30 DEC. THE VESSEL TOWING 10 CABLES LENGTH 6000M WITH YELLOW VISUAL BUOY AT EACH CABLE END FLASHING WHITE LIGHT AT NIGHT SPEED 4.6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED CROSSING THE CABLES AREA PROHIBITED GUANGDONG MSA CHINA