The eruption of Krakatoa, a volcano between two Indonesian islands, produced the loudest sound ever recorded. On August 26th, extremely violent explosions occurred on Krakatoa and a tower of black ash was propelled high into the air. The volcanic activity peaked the next day, and eruptions could be heard from as far as Australia. Tens of thousands were killed by the following pyroclastic flow and tsunamis triggered by the collapse of Krakatoa.