well the answer is a rhino and you can hear it from 10 miles away audaciously but i do now because i watch it on telly and i ask the smartest guy in the world BTW i 9
The loudest noise or sound is The Bloop because in 1997, U.S. NOAA heard a sound that is never been heard of that is also the loudest sound ever. The sound can cause from more than 5,000 km away from it's source. If it is an animal, it is louder and bigger than the loudest animal and the biggest animal in Earth.
S1 makes a "lub" sound. It is the first heart sound in a normal rhythm. The sound is produced when the AV valves close.
Mount Krakatoa in Indonesia in 1883 was the loudest ever heard and recorded volcanic eruption, the sound of its eruption was heard up to the northernmost tip of Japan
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194 dB (decibels) is the loudest sound on Earth ever. Some people say that the eruption of Krakatoa in 1883 was the loudest sound ever, being heard at 5,000 kilometers away! That eruption was around 180 dB!
The clicking sound of a sperm whale, is the loudest sound known of any animal on earth. At approximately 230 decibels, it can be heard for many miles underwater.
If you want the largest sound made by an animal that animal is the Blue Whale.
The blue whale is the loudest living animal on Earth at present. It can create sound waves through mating calls that go up to 188 decibels.
The loudest sound that we can hear is about 130 decibels.
An ex-wife ... lol Sorry, just couldn't resist ... ! _____________ Of the various natural things that can occur on earth without extra-terrestrial involvement, the loudest thing perhaps is the eruption of the caldera of a mega-volcano, or the eruption of a very large cone-producing volcano. Maybe louder still would be a collision with a very large comet or other body. I wouldn't like to be around in either case. Considering non-cataclysmic events, my guess would be: either the world's winds combined, or the world's surface water. If we could collect and concentrate the sound produced by either of these things, the loudness would be unexpected and phenomenal.
The 1st heart sound, S1 (lub), marks the beginning of systole (end of systole). Related to the closure of the mitral and tricuspid valves. Loudest at the apex.