Krakatoa Archipelago is a small uninhabited archipelago of volcanic islands formed by the Krakatoa stratovolcano located in the Sunda Strait , nestled between the much larger islands of Java and Sumatra . As of 2018 , the archipelago consists of four main islands : Verlaten ( aka Sertung ) , Lang ( aka Rakata Kecil , or Panjang ) , Rakata , and the currently volcanically active Anak Krakatoa . Together , the islands are a part of the Indonesian island arc system , created by the northeastward subduction of the Indo-Australian Plate . As part of a dynamic volcanic system , the islands have been continuously reshaped throughout recorded history , most notably in the 1883 eruption of Krakatoa
1883 eruption of Krakatoa
1883 eruption of Krakatoa
Krakatoa Archipelago