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What do you hear before a volcano erupts?

What do you hear before a volcano erupts?

Some volcanoes actually do “scream,” emitting a tea-kettle-like screech prior to eruption. In 2009, scientists recorded Alaskan volcano Redoubt making this sound, which they call a harmonic tremor. They then sped up the recording, so that each earthquake sounds like a drumbeat.

What does Krakatoa sound like?

The atmosphere was ringing like a bell, imperceptible to us but detectable by our instruments. The Krakatoa explosion registered 172 decibels at 100 miles from the source. This is so astonishingly loud, that it’s inching up against the limits of what we mean by “sound.”

What sound do you think volcanoes make when they erupt?

The roar created by an erupting volcano is the result of turbulence and friction created by hot gases accelerating upward through conduits and finally escaping through the volcanic vent at the surface.

Does volcano make sound?

Volcanoes make noise. Lava and gas moving around can tell scientists what a volcano is doing. Listen.

What is the world’s loudest sound?

The loudest sound in recorded history came from the volcanic eruption on the Indonesian island Krakatoa at 10.02 a.m. on August 27, 1883. The explosion caused two thirds of the island to collapse and formed tsunami waves as high as 46 m (151 ft) rocking ships as far away as South Africa.

What happens after a eruption?

After an eruption, roofs on buildings may collapse and kill people if enough volcanic ash particles land on them. People can develop breathing problems, throat irritation and other respiratory issues when ash falls after a volcanic eruption.

Which is the loudest volcano in the world?

A lithograph of the massive 1883 eruption of Krakatoa. (Credit: The eruption of Krakatoa, and subsequent phenomena, 1888; Parker & Coward; via Wikipedia) On 27 August 1883, the Earth let out a noise louder than any it has made since.

Why was the Krakatoa volcano eruption so loud?

I n general, sounds are caused not by the end of the world but by fluctuations in air pressure. A barometer at the Batavia gasworks (100 miles away from Krakatoa) registered the ensuing spike in pressure at over 2.5 inches of mercury. That converts to over 172 decibels of sound pressure, an unimaginably loud noise.

What to do before, during, and after a volcanic eruption?

To help everyone stay safe, here’s a quick guide on what to do before, during, and after a volcanic eruption: Evacuate immediately if you live or are staying within the radius of affected areas. Long before the explosion, affected areas would have been given a warning to evacuate the premises by local government units.

When did the Earth make the loudest sound?

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