A cataclysmic event happened on June 30, 1908 07:17 in Tunguska, Siberia, USSR felled more than 200 million trees over 850 square miles.
The Tunguska River Valley is a site of enormous geological and historical importance. No one knows exactly what happened deep in the Siberian wilderness of Tunguska, Russia. On that morning, seismic instruments in London registered earth tremors originating in the Tunguska region.
As reports slowly began to arrive in Europe, scientists heard that a burst of light was witnessed more than 100 miles from the epicenter. The blast was calculated to have the power of 10 to 15 megatons … but without the contamination or crater an explosion would create.
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