Indonesia was hit by a deadly tsunami on this Saturday which was triggered by the volcanic eruption of Anak Krakatau and it is still showing signs of eruption due to which authorities have raised the red alert, thousands of people have been evacuated from the area all the flights are rerouted. Indonesia's National Board for Disaster Management raised the warning level for Anak Krakatau to 3, the second-highest rank. The calamity has caused a high tsunami which swept through the Sunda Strait, killing more than 430 people and displacing tens of thousands. Aulia Ariani, a spokeswoman for the Indonesian Red Cross, told CNN that thousands of people had been removed from islands in the Sunda Strait between Java and Sumatra over fears of further tsunamis. Due to red alert and ash created by the volcano Air traffic control agency AirNav Indonesia has closed off all the air routes for safety reasons. Almost 20-25 flights have been affected including some of the international flights. Indonesia is one of the most disasters hit nations on the earth due to its position in the so-called Pacific ring of fire, where tectonic plates collide. Indonesian authorities have been roundly criticized for the state of the country's tsunami detection and warning system, which has been largely out of action since at least 2012.