Posted by: Robert Janssen | September 24, 2010

The Mysterious Tunguska Event

The Tunguska event, or Tunguska explosion, was a powerful explosion that occurred not far from the Podkamennaya (Lower Stony) Tunguska (Подкаменная Тунгуска) River in what is now Krasnoyarsk Krai (Красноярский Край) in Russia, at 00:13:35 Greenwich Mean Time (around 07:14 local time) on June 30, 1908.

The explosion is believed to have been caused by the air burst of a large meteoroid or comet fragment at an altitude of 5–10 kilometres (3.1–6.2 mi) above the Earth’s surface. Different studies have yielded varying estimates of the object’s size, with general agreement that it was a few tens of metres across.

 

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