The Tunguska event A large explosion over Central Siberia on the morning of 30 June 1908, at about 7:14 local time. It shattered windows up to nearly 200 kilometres away.
1 Sources 7 Connections Podkamennaya Tunguska River The event is named after this river, in what is now Evenkiysky District, Krasnoyarsk Krai.
1 Sources 1 Connections The flattened forest About 2,150 square kilometres of forest lay flattened outward from the centre, a radial pattern that implies the blast came from the air. The popular figure of 80 million trees has been traced to a 1982 paper that was never peer reviewed.
1 Sources 3 Connections Semyon Semyonov A farmer at Vanavara, about 60 kilometres south of the epicentre. In a 1930 account he said "the sky was split in two".
1 Sources 1 Connections The Evenk people The people of the region. The shock wave killed at least three of them.
1 Sources 1 Connections Leonid Kulik A Russian mineralogist. His 1921 survey never reached the centre; in 1927 he led an expedition there and found no crater. In 1938 he arranged an aerial photographic survey of the area.
1 Sources 2 Connections Air burst An object from space exploding in the air before it reaches the ground. The consensus is that Tunguska was a meteor air burst 5 to 10 kilometres up. No fragment has been formally identified.
1 Sources 2 Connections Lake Cheko A lake that a team from Bologna proposed in 2007 as a possible impact crater. A 2017 Russian study found it at least 280 years old, older than the event.
1 Sources 1 Connections Comet or asteroid Whipple argued for a comet in 1930 and Sekanina for a rocky body in 1983. In 2001 Farinella and colleagues put the odds of an asteroidal path at 83 percent. It is still unsettled.
1 Sources 1 Connections Asteroid Day Proclaimed by the UN in 2016 and held every 30 June, the anniversary, to raise awareness of asteroids and planetary defence.
1 Sources 1 Connections gave its name to flattened witnessed killed investigated found no crater from is evidence for was proposed, and ruled out, as the crater of asks what caused the marks the anniversary of Control map, One finger scrolls the page. Two fingers move or zoom the map.
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Item The Tunguska event A large explosion over Central Siberia on the morning of 30 June 1908, at about 7:14 local time. It shattered windows up to nearly 200 kilometres away. User contribution ↑ gave its name to The event is named after it. Sources 1 Place Podkamennaya Tunguska River The event is named after this river, in what is now Evenkiysky District, Krasnoyarsk Krai. User contribution ↓ flattened About 2,150 square kilometres fell in a radial pattern. Sources 1 Place The flattened forest About 2,150 square kilometres of forest lay flattened outward from the centre, a radial pattern that implies the blast came from the air. The popular figure of 80 million trees has been traced to a 1982 paper that was never peer reviewed. User contribution Place The flattened forest About 2,150 square kilometres of forest lay flattened outward from the centre, a radial pattern that implies the blast came from the air. The popular figure of 80 million trees has been traced to a 1982 paper that was never peer reviewed. User contribution ↑ flattened About 2,150 square kilometres fell in a radial pattern. Sources 1 Item The Tunguska event A large explosion over Central Siberia on the morning of 30 June 1908, at about 7:14 local time. It shattered windows up to nearly 200 kilometres away. User contribution ↑ investigated He reached it in 1927 and arranged aerial photography in 1938. Sources 1 Person Leonid Kulik A Russian mineralogist. His 1921 survey never reached the centre; in 1927 he led an expedition there and found no crater. In 1938 he arranged an aerial photographic survey of the area. User contribution Person Leonid Kulik A Russian mineralogist. His 1921 survey never reached the centre; in 1927 he led an expedition there and found no crater. In 1938 he arranged an aerial photographic survey of the area. User contribution ↓ investigated He reached it in 1927 and arranged aerial photography in 1938. Sources 1 Place The flattened forest About 2,150 square kilometres of forest lay flattened outward from the centre, a radial pattern that implies the blast came from the air. The popular figure of 80 million trees has been traced to a 1982 paper that was never peer reviewed. User contribution ↓ found no crater from His 1927 expedition found no crater at ground zero. Sources 1 Item The Tunguska event A large explosion over Central Siberia on the morning of 30 June 1908, at about 7:14 local time. It shattered windows up to nearly 200 kilometres away. User contribution Concept Air burst An object from space exploding in the air before it reaches the ground. The consensus is that Tunguska was a meteor air burst 5 to 10 kilometres up. No fragment has been formally identified. User contribution ↑ is evidence for The radial pattern implies the blast came from the air. Sources 1 Place The flattened forest About 2,150 square kilometres of forest lay flattened outward from the centre, a radial pattern that implies the blast came from the air. The popular figure of 80 million trees has been traced to a 1982 paper that was never peer reviewed. User contribution ↑ asks what caused the Opinion is split over whether the body was a comet or an asteroid. Sources 1 Concept Comet or asteroid Whipple argued for a comet in 1930 and Sekanina for a rocky body in 1983. In 2001 Farinella and colleagues put the odds of an asteroidal path at 83 percent. It is still unsettled. User contribution More shared clues (8) AI research is a draft. Read the sources and check the context.
