We are currently aware of less than 1% of objects comparable to the one that impacted at Tunguska
, and nobody knows when the next big one will hit.
In the outcrops along the Podkamennaya Tunguska
River valley and its tributaries it is represented by greenish-gray siltstones alternating with bioclastic limestone beds.
Because of the remoteness of the area and the turmoil of the First World War and the Russian Revolution, not until 1921 did a team of scientists reach the site of the Tunguska
event, braving hundreds of miles of trackless taiga and mosquitoes.
And the asteroid that exploded over Russia last month was the largest object to hit Earth's atmosphere since the 1908 Tunguska
event when an huge rock or comet exploded over Siberia.
The asteroid that exploded over Russia last month was the largest object to hit Earth's atmosphere since the 1908 Tunguska
event when an asteroid or comet exploded over Siberia, leveling 80 million trees over more than 830 sq miles (2,150 sq km).
8221; However it is the largest reported meteor since 1908, when an estimated 100-meter (330-foot) meteor - the largest in recorded history - exploded near the Tunguska
River in what is now Krasnoyarsk Krai, Russia.
And in 1908, the fabled " Tunguska
event" occurred in Siberia in which an asteroid or meteor exploded several miles above the Earth, flattening trees and killing livestock over 800 square miles.
blast, attributed to a comet or asteroid fragment, is generally estimated to have been about 10 megatons.
This morning's event is reminiscent of the enormous airburst that occurred over the Tunguska
River in Central Siberia in 1908, releasing 1,000 times more energy than was released by the nuclear bomb dropped on Hiroshima.
Computer simulations reveal that if asteroid 2012 DA 14, were to crash onto our planet, the impact will be as hard as the Tunguska
blast, which in 1908 knocked down trees over an area of 2,150sq km (830sq miles) in Siberia.
As the story goes, a massive explosion was triggered, of magnitude not seen east of the Urals since the Tunguska
event of 1908.
Just over 100 years ago a 2000 kilometre square area of vegetation was destroyed when an object exploded in the skies above Tunguska
June - The Tunguska
event, also known as the Russian explosion, occurs in Siberia.
The biggest in recent history at Tunguska
in Russia in 1908 caused an explosion 1,000 times more powerful than the atomic bomb dropped at Hiroshima.
There there's the Tunguska
Event, when what is thought to have been the explosion of a meteorite above Siberia laid waste to 800 square miles of countryside, flattening 80 million trees.