The eruption of Krakatoa volcano in 1883 is considered the second loudest sound in recorded history. The explosion was so loud that it was heard over 3,000 miles away and caused eardrums to burst within a 40-mile radius.
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The loudest sound produced on Earth is a volcanic eruption, with the eruption of the Krakatoa volcano in 1883 being one of the loudest recorded sounds in history. In space, the collapse of a massive star into a supernova can produce incredibly loud sound waves.
The loudest sound that humans can hear before experiencing pain is usually around 120 decibels, such as a rock concert or a thunderclap. However, sounds over 140 decibels can cause permanent hearing damage.
The loudest sound ever recorded is believed to be the eruption of the Krakatoa volcano in 1883. The sound was heard up to 3,000 miles away and ruptured eardrums of sailors 40 miles away. It is estimated to have reached 180 to 190 decibels.
The loudest sound that can be perceived by the human ear is typically around 120-130 decibels, such as a jet engine at close range. Sounds louder than this can cause pain and potential hearing damage. The loudest sound ever recorded was the eruption of the Krakatoa volcano in 1883, which registered around 180-190 decibels.
S1, or the first heart sound, is the loudest because it is produced by the closing of the atrioventricular valves (mitral and tricuspid valves) during systole. This closure creates a more forceful and prominent sound compared to the closing of the semilunar valves which produce S2.