JACKSON and Ryan1 suggested that a black hole may have caused the Tunguska catastrophe in 1908, in which an explosion occurred in a remote part of Siberia. About 1023 erg (equivalent to 2 Mton of TNT) of energy was released. Several lines of evidence render the black hole hypothesis extremely unlikely.
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BEASLEY, W., TINSLEY, B. Tungus event was not caused by a black hole. Nature 250, 555–556 (1974). https://doi.org/10.1038/250555a0
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