Why was Krakatoa so loud?
In 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.
How loud was the Krakatoa eruption?
On the morning of 27 August 1883, on the Indonesian island of Krakatoa, a volcanic eruption produced what scientists believe to be the loudest sound produced on the surface of the planet, estimated at 310 decibels (dB).
What was the loudest sound in human history?
The loudest sound ever created by humans, not by natural causes, was said to be the atomic bomb blasts over Nagasaki and Hiroshima. Those clocked in at around 250 decibels. NASA’s highest recorded decibel reading was 204 and that was the first stage of the Saturn V rocket.
What was the worst volcano explosion ever?
The world’s largest volcanic eruption to happen in the past 100 years was the June 15, 1991, eruption of Mount Pinatubo in the Philippines.
What was loudest sound on earth ever?
On the morning of 27 August 1883, on the Indonesian island of Krakatoa, a volcanic eruption produced what scientists believe to be the loudest sound produced on the surface of the planet, estimated at 310 decibels (dB).
Why is 194 dB the loudest sound possible?
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.
How far could Krakatoa be heard from?
Once you get to a certain level (194 decibels, to be precise), there comes a point where the low-pressure regions are completely empty there are no molecules in there at all. The sound can’t get ‘louder’ than that, technically.
Was Krakatoa the loudest sound?
But what about the loudest sound ever heard? On the morning of 27 August 1883, on the Indonesian island of Krakatoa, a volcanic eruption produced what scientists believe to be the loudest sound produced on the surface of the planet, estimated at 310 decibels (dB).
How loud is Krakatoa explosion?
The pressure wave generated by the colossal third explosion radiated out from Krakatoa at 1,086 km/h (675 mph). The eruption is estimated to have reached 310 dB, loud enough to be heard 5,000 kilometres (3,100 mi) away.
What was the loudest sound ever in the universe?
Once you get to a certain level (194 decibels, to be precise), there comes a point where the low-pressure regions are completely empty there are no molecules in there at all. The sound can’t get ‘louder’ than that, technically.
What is the loudest sound made by a human body?
What is a decibel?
- The sound of your own breathing 10 dB.
- A whisper 20 dB.
- A normal conversation 60 dB.
- A noisy restaurant 70 dB.
- An electric drill 95 dB.
- Jill Drake, a teaching assistant who in 2000 won the Guinness World Record for the loudest individual’s shout 129 dB.
29 Dec 2020
