Piano Guidance
Piano Guidance
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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).
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Read More »According to The Independent, the force of the blast was around 10,000 times that of the atomic bomb dropped on Hiroshima in August 1945. Over the following five days, shock waves from the explosion travelled all the way around the globe seven times. In England, Canada and Russia, scientists recorded spikes in atmospheric pressure. And in North Jakarta, 160km (99 miles) away from the volcano, a sound pressure level spike of more than two-and-a-half inches of mercury (8.5kPa) was logged, which is the equivalent to 172 decibels – about twice the decibels of a live rock concert. For some extra context here, thunder can reach 120dB, a shotgun can reach 140 dB, and 150 to 160dB is usually considered painfully loud enough to rupture your ear drums. Sound is made of pressure waves, produced when an object vibrates. When sound waves travel to our eardrum, they are transformed into vibrations, and if the pressure becomes too great, the eardrum can vibrate so violently that it ruptures. Ultimately if the sound is loud enough, like the Krakatoa volcano at highs of 310dB, the pressure can impact your organs and cause death. See the above diagram, for extra frightening context. More than 100 years later, on 14 January 2022, the island of Hunga Tonga-Hunga Ha’apai was destroyed by a volcanic explosion, producing a sonic boom that was heard 6,000 miles away in Alaska. The eruption is thought to have produced the world’s most intense sounds in 139 years, second only to the Krakatoa eruption, with three deaths recorded in connection to it. In other words, the loudest sounds in the world could do a lot more than just make you cover your ears...
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