Tunguska
The Great Siberian Explosion

Tunguska, Siberia was the site of a massive mid-air explosion that occurred in June, 1908.  The blast, which was estimated to be between 10 and 15 megatons, flattened an estimated 60 million trees in the blast zone and registered on seismic stations throughout Europe and Asia.  The cause of the Tunguska event is most often attributed to the break up of a comet or meteorite after it entered the Earth's atmosphere, but there are others who contend that the source of the Tunguska explosion lies elsewhere.  For more about Tunguska, the great Siberian explosion of 1908, check out these online resources.

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