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 出典 7 関係 Podkamennaya Tunguska River The event is named after this river, in what is now Evenkiysky District, Krasnoyarsk Krai.
1 出典 1 関係 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 出典 3 関係 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 出典 1 関係 The Evenk people The people of the region. The shock wave killed at least three of them.
1 出典 1 関係 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 出典 2 関係 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 出典 2 関係 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 出典 1 関係 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 出典 1 関係 Asteroid Day Proclaimed by the UN in 2016 and held every 30 June, the anniversary, to raise awareness of asteroids and planetary defence.
1 出典 1 関係 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 地図を操作, 1本指でページをスクロール、2本指で地図を移動・拡大。
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項目 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. ユーザーの記述 ↑ gave its name to The event is named after it. 出典 1 場所 Podkamennaya Tunguska River The event is named after this river, in what is now Evenkiysky District, Krasnoyarsk Krai. ユーザーの記述 ↓ flattened About 2,150 square kilometres fell in a radial pattern. 出典 1 場所 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. ユーザーの記述 場所 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. ユーザーの記述 ↑ flattened About 2,150 square kilometres fell in a radial pattern. 出典 1 項目 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. ユーザーの記述 ↑ investigated He reached it in 1927 and arranged aerial photography in 1938. 出典 1 人物 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. ユーザーの記述 人物 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. ユーザーの記述 ↓ investigated He reached it in 1927 and arranged aerial photography in 1938. 出典 1 場所 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. ユーザーの記述 ↓ found no crater from His 1927 expedition found no crater at ground zero. 出典 1 項目 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. ユーザーの記述 概念 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. ユーザーの記述 ↑ is evidence for The radial pattern implies the blast came from the air. 出典 1 場所 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. ユーザーの記述 ↑ asks what caused the Opinion is split over whether the body was a comet or an asteroid. 出典 1 概念 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. ユーザーの記述 共通の手がかりをあと8件見る AIの調査は下書きです。出典と文脈を確かめながらお読みください。
