Qualla: Krakatoa: The Eruption Heard Around the World

Krakatoa: The Eruption Heard Around the World: Introduction

Thu, 15 Jan 2026 00:00:00 GMT

Photo credit Sémhur, Public domain. On August 27, 1883, the volcanic island of Krakatoa in the Sunda Strait between Java and Sumatra exploded with a force equivalent to 200 megatons of TNT - four times the largest nuclear bomb ever tested. The eruption was heard 3,000 miles away in Australia. The pressure wave circled the Earth seven times. Tsunamis reaching 120 feet high killed over 36,000 people on nearby coasts. Volcanic ash darkened skies for days. And for years afterward, the particles lofted into the stratosphere colored sunsets blood red across the world - effects so vivid that they may have inspired Edvard Munch's 'The Scream.'

Read more: Krakatoa on Qualla

Image: Sémhur | Public domain

Krakatoa: The Eruption Heard Around the World: The Explosion

Thu, 15 Jan 2026 00:00:00 GMT

Photo credit Woodbury & Page (Fotograaf/photographer)., CC BY-SA 3.0. Krakatoa had been rumbling since May 1883, but nothing prepared the region for what happened that August morning. At 10:02 AM local time, the volcano produced the loudest sound in recorded history - a detonation audible across 10 percent of the Earth's surface. People in Australi...

Read more: Krakatoa on Qualla

Image: Woodbury & Page (Fotograaf/photographer). | CC BY-SA 3.0

Krakatoa: The Eruption Heard Around the World: The Global Effects

Thu, 15 Jan 2026 00:00:00 GMT

Photo credit Woodbury & Page (Fotograaf/photographer)., CC BY-SA 3.0. Krakatoa's eruption pumped 25 cubic kilometers of rock and ash into the atmosphere, reaching heights of 50 miles. Fine particles spread around the world, creating spectacular optical effects that lasted for years. Sunsets turned brilliant red and orange. The sun and moon appeared...

Read more: Krakatoa on Qualla

Image: Woodbury & Page (Fotograaf/photographer). | CC BY-SA 3.0

Krakatoa: The Eruption Heard Around the World: The Science

Thu, 15 Jan 2026 00:00:00 GMT

Photo credit Krakatoa Committee of the Royal Society, G. J. Symons (editor), Public domain. Krakatoa's eruption became a founding event for modern volcanology. The Royal Society of London compiled a massive report analyzing data from around the world - the first comprehensive study of a volcanic event's global effects. Scientists learned how ash clouds behave in the str...

Read more: Krakatoa on Qualla

Image: Krakatoa Committee of the Royal Society, G. J. Symons (editor) | Public domain

Krakatoa: The Eruption Heard Around the World: Anak Krakatau

Thu, 15 Jan 2026 00:00:00 GMT

Photo credit Uprising, CC BY-SA 3.0. Krakatoa itself was largely destroyed in 1883, but the volcano didn't die. In 1927, a new volcanic cone emerged from the caldera - Anak Krakatau, 'Child of Krakatoa.' The new island has been growing ever since, currently reaching about 400 meters above sea level, its frequent eru...

Read more: Krakatoa on Qualla

Image: Uprising | CC BY-SA 3.0

Krakatoa: The Eruption Heard Around the World: Krakatoa in Culture

Thu, 15 Jan 2026 00:00:00 GMT

Photo credit Lithograph: Parker & Coward, Britain;, Public domain. Krakatoa became a byword for catastrophic destruction, entering popular culture in ways few geological events have. The phrase 'east of Krakatoa' (or west - Hollywood got the geography wrong in its 1969 film title) became shorthand for the exotic and dangerous. The 1883 eruption ...

Read more: Krakatoa on Qualla

Image: Lithograph: Parker & Coward, Britain; | Public domain