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NAPIER,ASHER:TUNGUSKA 1.18 A&G February 2009 Vol. 50

1.18 A&G February 2009 Vol. 50
he Tunguska impact of 30 June 1908,
which destroyed 2000 square kilometres
of conifer forest in a sparsely populated
region, the Central Siberian Plateau, had the
energy of a large hydrogen bomb (figure 1). No
meteorite crater associated with it has been
securely identified. A number of conferences
in Moscow, held around the centenary of the
event, brought home that even this fairly recent,
much explored impact holds many mysteries.
It is occasionally pointed out that if the 1908
impact had taken place over a metropolitan
area, huge damage would have been inflicted.
In the case of an impact on London, a bolide
brighter than the Sun, and leaving a thick trail of
smoke, would have been seen approaching from
half way across France. The gunfire-like bangs


Source: Armagh Observatory


Collections: Physics