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Till now there is no solid scientific proof for any of the numeroushypotheses proposed for the Tunguska 1908 event. Regarding the most popular"spacebody infall" interpretation it is reasonable to compare the Tunguskaevent with the 2013 Chelyabinsk meteoritic event which energy deposition wasabout a half megaton TNT. In this paper seismic manifestations are compared.The comparison demonstrates that while a "seismic image" of the 2013Chelyabinsk meteoritic event is an agreement with the "spacebody infall"theory, the 1908 Tunguska event one strongly differs. There are evidences of aswarm of earthquakes on June 30, 1908 in the region of the Tunguska eventmanifestation.

The 1908 Tunguska Event And The 2013 Chelyabinsk Meteoritic Event: Comparison Of Reported Seismic Phenomena