Asteroid 2024 YR4 has a 2.2% chance of colliding with Earth on December 22, 2032, potentially causing catastrophic destruction. If it strikes a populated area, the impact might unleash energy equivalent to 8-15 megatons of TNT, and produce a shockwave that could flatten buildings within an 8.5-mile radius. The explosion could also shatter windows and injure people miles away. The scale of destruction would be reminiscent of the 1908 Tunguska event, emphasizing the need for awareness and preparedness for such celestial threats.
If it were to detonate above central London, the blast would be powerful enough to shatter windows and cause injuries in Slough, 24.6 miles away.
There are a large number of variables that could affect the outcome. In theory, an impact from an object of this size travelling at speed can devastate the area surrounding the impact point out to several tens of kilometres.
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