Krakatoa’s eruption was bit more louder than 183db.
About Krakatoa from wiki:
The eruption is estimated to have reached 310 dB, loud enough to be heard 5,000 kilometres (3,100 mi) away.[[7]](https://en.wikipedia.org/wiki/1883_eruption_of_Krakatoa#cite_note-winchester-7):248 It was so powerful that it ruptured the eardrums of sailors 64 km (40 miles) away on ships in the Sunda Strait,[[7]](https://en.wikipedia.org/wiki/1883_eruption_of_Krakatoa#cite_note-winchester-7):235 and caused a spike of more than 8.5 [kilopascals](https://en.wikipedia.org/wiki/Pascal_(unit)) (2.5 inHg) in pressure gauges 160 km (100 miles) away, attached to [gasometers](https://en.wikipedia.org/wiki/Gasometer) in the [Batavia](https://en.wikipedia.org/wiki/Batavia,_Dutch_East_Indies) gasworks, sending them off the scale .
Guess it was 183db in 160km away from krakatoa
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