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Tunguska 1908
... from the south-east, travelling at a speed of about 27 km/s (60,000 mph). The
explosion, which flattened tens of millions of trees
over an area of more than 2000 sq km (830 sq miles), was equivalent to the detonation
of a 12 megaton nuclear explosion ...
Keywords:
... st, impact, lake, landscape, near-miss, trees,
Tunguska, water ...