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Tunguska event
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Tunguska event
Russia-CIA WFB Map--Tunguska.png
Location of the event in Siberia (modern map)
Event Explosion in forest area (10–15 megatons of TNT)
Time 30 June 1908
Place Podkamennaya Tunguska River in Siberia, Russian Empire
Effects Flattening 2,000 km2 (770 sq mi) of forest
Damage Devastation to local plants and animals
A few damaged buildings
Deaths 0 confirmed, 2 possible
Cause Probable air burst of small asteroid or comet
Coordinates 60°55′N 101°57′E
The Tunguska event was a large explosion that occurred near the Stony Tunguska River in Yeniseysk Governorate (now Krasnoyarsk Krai), Russia, on the morning of 30 June 1908 (NS).[1][2] The explosion over the sparsely populated Eastern Siberian Taiga flattened 2,000 square kilometres (770 square miles) of forest, yet caused no known human casualties. The explosion is generally attributed to the air burst of a meteoroid. It is classified as an impact event, even though no impact crater has been found; the object is thought to have disintegrated at an altitude of 5 to 10 kilometres (3 to 6 miles) rather than to have hit the surface of the earth.[3]
The Tunguska event is the largest impact event on earth in recorded history. Studies have yielded different estimates of the meteoroid's size, on the order of 60 to 190 metres (200 to 620 feet), depending on whether the body was a comet or a denser asteroid.[4]