What was the Tunguska event? On June 30, 1908, a devastating explosion equal to 1000 Hiroshima bombs destroyed 2000 square km or 770 square miles of forest in the Tunguska area, in Siberia, Russia.
To this day the cause of this event remains a mystery. Many theories about this event claim it was a meteorite impact, or explosion above the ground of a meteorite, a comet, or even a mini-black hole. It was so powerful that it was felt in several countries, and it caused a seismic shock that was recorded by seismographs all over the world. The explosion also caused a bright light that was seen in the sky as far away as London and New York City. Some believe that it was caused by a nuclear explosion, or even by an alien spacecraft. There was no impact crater and no debris. Most of the trees were blown to the ground but some remained intact. Scholars established by studying tree rings in the area that after the blast the growth of plants was accelerated because