Krakatoa is a volcanic island located in the Sunda Strait between the islands of Java and Sumatra in Indonesia. It is famous for its catastrophic eruption in 1883, which was one of the most violent volcanic events in recorded history. The eruption caused massive tsunamis and resulted in significant loss of life, as well as global climate effects due to the ash released into the atmosphere. The eruption of Krakatoa led to the formation of a new volcanic island called Krakatoa or Anak Krakatau ("Child of Krakatoa") in the early 20th century. This island continues to be an active volcano, with eruptions occurring periodically. The event has had a lasting impact on volcanic research and disaster preparedness in the region.