Airlines are closely monitoring the activity of Indonesia’s Anak Krakatoa volcano after the country’s authorities issued a code red for its ash cloud. Indonesian officials say that at least 62 people were killed and 584 injured after a tsunami hit the coast on Indonesia's Sunda Strait related to the eruption. Anak Krakatoa (Child of Krakatoa) emerged in 1927 from the remnants of Krakatoa which, in 1883, underwent the most violent volcanic eruption in recorded history. That eruption, which was heard thousands of miles away killed more than 30,000. According to the Darwin Ash Advisory Centre (VAAC) The ash cloud is moving south-west and is reaching a height of 18,000 mtrs. On that trajectory it is not expected to impact flights from Perth, however, a wind change pushing it south-east or east would cut across the Perth to Singapore route and also impact flights to Jakarta. Read: Aussies to get Global Entry status for US trips If the eruption was to intensify the impacts could be significantly greater. VAAC Darwin is one of nine global centers that monitor volcanic activity and is responsible for the entire Indonesian archipelago as well as Australia.