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Krakatoa, The Eruption Felt Round The World

The eruption of Krakatoa is thought to be one of the loudest sounds ever recorded on Earth. It was so loud that people reported hearing it in Australia—a distance of about 2,000 miles away from the volcano's location in Indonesia. It created a tsunami with waves more than 30 m (100 ft) high, and killed around 36,000 people. This death toll is disputed, however, and some say that the eruption could have been responsible for more than 100,000 fatalities.

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The History of Active Volcanoes

Krakatoa was the loudest in history, but there plenty of other volcanoes have had a big impact.

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Key Facts In This Video

  1. In 2010, a volcanic eruption in Iceland caused a suspension in European air traffic for six days. 00:52

  2. After the Krakatoa eruption, global temperatures didn't return to normal for five years. 01:59

  3. Floods in China in the early 1900s killed as many as 4 million people. 02:32

What's The Loudest Possible Sound?

Planets like Venus and Saturn can handle more intense sound waves.

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Key Facts In This Video

  1. Louder sounds create more intense pressure waves. 00:49

  2. The pain threshold for human hearing is at about 130 decibels. 01:38

  3. When traveling through air, sound can reach a maximum of 194 decibels. 02:44

Volcanoes Are The Mother Of Disaster

Everything you need to know about the natural disaster the emits big noise.

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