🔄FROM THE ARCHIVE: Hint: It happened on August 27, 1883.
stuff spewed out of the volcano at over 1,600 miles per hour — or nearly half a mile per second. That’s more than twice the speed of sound.
The British ship Norham Castle was 40 miles from Krakatoa at the time of the explosion. The ship’s captain wrote in his log, “So violent are the explosions that the ear-drums of over half my crew have been shattered. My last thoughts are with my dear wife. I am convinced that the Day of Judgement has come.”In general, sounds are caused not by the end of the world but by fluctuations in air pressure. A barometer at the Batavia gasworks registered the ensuing spike in pressure at over 2.
By 1883, weather stations in scores of cities across the world were using barometers to track changes in atmospheric pressure. Six hours and 47 minutes after the Krakatoa explosion, a spike of air pressure was detected in Calcutta. By 8 hours, the pulse reached Mauritius in the west and Melbourne and Sydney in the east. By 12 hours, St. Petersburg noticed the pulse, followed by Vienna, Rome, Paris, Berlin, and Munich. By 18 hours the pulse had reached New York, Washington DC, and Toronto.
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