Да нет, там вообще прелесть: "On June 16, 1908, an incoming asteroid thought to have measured from 5 to 10 km (3 to 6 mi.) burst in the air while still in descent above the Tunguska River in Moscow. The blast is thought to have been 1,000 times more powerful than the bomb dropped over Hiroshima. Mercifully, the area was only sparsely populated, but up to 80 million trees across 830 sq. mi. (2,150 sq. km) met their end that day. "