Suppose it is possible that an asteroid were to hit Earth.
Any asteroid tumbling from the sky would have a devastating effect on life here on earth.
In 2028, the asteroid 1997XF11 will converge on a path with Earth, yet it will miss the planet. If something somehow managed to change- and it did hit Earth, what you would have is an asteroid striking the planet’s surface at around 30,000 mph. An asteroid that enormous going at that speed has the energy equivalent to a 1 million megaton bomb. It’s thought that an asteroid like this would wipe out the vast majority of the life on the planet earth.
It’s hard to envision 1 million megatons, so how about we illustrate some smaller size explosions. Let’s say that an asteroid the width of a house smashed on Earth at over 30,000 mph. It would have an explosive force equivalent to the bomb that fell on Hiroshima – roughly 20 kilo-tons. An asteroid like this would flatten steel reinforced concrete structures up to a mile from ground zero, and level wooden structures maybe a mile and a half from ground zero. It would, at the end of the day, do major damage to any city.
On the off chance that the asteroid is as large as a 20-story building (200 feet on a side), it has power equivalent to the biggest atomic bombs made today – on the scale of 25 to 50 megatons. An asteroid like this would level fortified solid structures five miles from ground zero. It would totally crush most significant urban communities in the United States.
When dealing with a “earth killer” asteroid, you’re talking in the 1 million megaton range. This asteroid’s power is 10 million times stronger than the bomb that fell on Hiroshima. It’s would flatten everything for 100 to 200 miles out from ground zero. At the end of the day, if a massive asteroid of this size were to hit New York City, the impact would totally level each and every thing from Washington D.C. to Boston, and cause wide-scale damage up to 1,000 miles out – that is as far away as Chicago. So much dust and ash would be hurled into the air that it would block out the sun for so long that it would kill most living things on the planet earth. If an asteroid that large were to land in the sea, it would bring about enormous tsunamis hundreds of feet high, that would wash away the coastlines in the region.
Suffice to say, if an asteroid strikes Earth, it will be a terrible day regardless of how enormous it is. In the event that the asteroid is a mile across, its liable to wipe out life on the entire planet.
It has happened before and it will happen again. It is only a matter o f time.
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