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The likely consequences if a 200m asteroid struck the center of a 3million person city are near complete destruction.
Astronomers bear in mind a close-to-Earth object is a hazard if it'll comes inside 4.6 million miles (7.4 million km) of the planet and is a minimum of 460 ft (140 meters) in diameter. If a celestial body of this size crashed into Earth, it could ruin an entire metropolis and purpose intense nearby devastation.
The asteroid hit at a high pace and efficiently vaporized. It made a massive crater, so in the immediate location, there has been total devastation. A large blast wave and heatwave went out and it threw big amounts of fabric up into the surroundings. 'It sent soot touring everywhere in the international.
An effect via a sufficiently large asteroid or different NEOs could purpose, relying on its impact area, large tsunamis or multiple firestorms, and an impact winter because of the sunlight-blockading effect of large portions of pulverized rock dust and different particles located in the stratosphere.
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