Here’s an anniversary to make your ears ache. On Aug. 27, 1883, just after 10 a.m., the eruption of the Krakatoa volcano in Indonesia made the loudest sound known to history — a terrifying roar that ...

On August 27, 1883, the Earth let out a noise louder than any it has made since. It was 10:02 a.m. when the sound emerged from the island of Krakatoa, which sits between Java and Sumatra in Indonesia.

Within 20 years around the turn of the 20th century occurred two of the most devastating and, to the local populations as well as experts of the fledgling science of volcanology, most surprising ...