Tunguska event: Quick Facts

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Date	June 30, 1908
Location	Podkamennaya Tunguska River • Russia • Siberia

Hundreds of reindeer were killed in the blast, along with eighty million trees.
Various scientists have suggested that a comet, a nuclear explosion, or a black hole caused the event.
At the time of the explosion, seismographs in western Europe recorded seismic waves from the blast.
Eyewitnesses were sometimes hesitant to share their stories because they believed the explosion was caused by the god Ogdy cursing the area.
The energy of the explosion is estimated to have been equivalent to that of about 15 megatons of TNT, a thousand times more powerful than the atomic bomb.
Eyewitnesses who observed the event from a distance spoke of a fireball lighting the horizon, followed by trembling ground and hot winds strong enough to throw people down and shake buildings as in an earthquake.