GEOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -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).

Detailed explanation-3: -In 1883, some barographs recorded four waves, some recorded seven. Whatever the case, the explosion-or set of explosions-was huge.

Detailed explanation-4: -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 180 dB, loud enough to be heard 5, 000 kilometres (3, 100 mi) away.

Detailed explanation-5: -At 194 dB, the energy in the sound waves starts distorting and they create a complete vacuum between themselves. The sound is no longer moving through the air, but is in fact pushing the air along with it, forming a pressurized wall of moving air.