There have been 10 confirmed eruptions of Krakatau in the past two decades, according to the Smithsonian Institution's volcano database. A complete history of eruptions is impossible to produce from before the implementation of modern record-keeping efforts.
Krakatau is a volcano located in Indonesia that has been responsible for some of the most violent eruptions in recorded history. The 1883 eruption of Krakatau was one of the largest volcanic events ever recorded and had a serious impact on the global climate. Data supplied by the Smithsonian's Global Volcanism Program shows only relatively minor activity for the past century, with the most recent confirmed eruption taking place in September 2012.