The loudest sound in recorded history was heard in Australia
When Krakatoa exploded in 1883, barometers went haywire in Bogotá. Bodies washed ashore in Zanzibar. The sound crossed four thousand miles of ocean.
On August 27, 1883, Krakatoa detonated. The explosion vaporized the island between Java and Sumatra—six cubic miles of rock hurled twenty miles into the atmosphere. The resulting tsunamis, some reaching 115 feet, killed more than 36,000 people. In the Sumatran village of Merak, two of 2,700 residents survived.
The sound reached Australia, nearly three thousand miles away, where observers reported hearing what seemed like distant cannon fire. Barometers in Bogotá and Washington D.C. spiked as the pressure wave circled the globe multiple times. Volcanic dust remained suspended in the upper atmosphere for years, turning sunsets vivid red and orange across Europe and inspiring a wave of paintings artists struggled to explain.
What made Krakatoa historically distinctive was not just its scale but its timing. By 1883 the world was newly connected by undersea telegraph cables, and Paul Julius Reuter's news service carried the story to four continents within days—making it arguably the first global news event. Simon Winchester argues in Krakatoa that the eruption also triggered something cultural: the destruction of colonial authority in that corner of Java contributed to a wave of religious revivalism whose long-term consequences are still being felt.