Explanation:

• Recently, Indonesia's Anak Krakatau volcano erupted on 11 April. It spewed a column of ash 500 meters into the sky. It last erupted in 2018. 
• Anak Krakatau means the child of Kratakau, is the offspring of the famous Krakatau volcano.
• The volcano first erupted in 1883 triggered a period of global cooling. 
• The island is located in a caldera in the Sunda Strait between the islands of Java and Sumatra in the Indonesian province of Lampung.