What would happen if a meteor the size of a football field?

The asteroid, named 1994 WR12, is about 390 feet long, just 30 feet longer than a football field, according to NASA’s Jet Propulsion Laboratory. An impact from 1994 WR12 would be catastrophic. NASA says it would strike with an explosion equal to 77 megatons of TNT.

How big would an asteroid have to be to cause significant damage?

If a rocky meteoroid larger than 25 meters but smaller than one kilometer ( a little more than 1/2 mile) were to hit Earth, it would likely cause local damage to the impact area. We believe anything larger than one to two kilometers (one kilometer is a little more than one-half mile) could have worldwide effects.

What would happen if a 20-story asteroid hit the Earth?

An asteroid the size of a 20-story building is bad news. With the right composition, speed, and angle of attack, a rock this size might leave a wake of destruction the size of central Paris. One roughly the size of a football field could obliterate New York, causing a 7.7-magnitude earthquake that might be felt than 1,000 miles away.

How big is the largest asteroid in size?

The largest known asteroid, Ceres, is about the size of Texas. Lucky for us, Ceres has no chance of striking Earth. Watch our full video about how much damage asteroids can do.

What would happen if a house-sized meteorite hit Earth?

A house-sized meteorite can explode in Earth’s atmosphere with a force greater than the nuclear weapon the US dropped on Hiroshima in 1945. Such a space rock could flatten most buildings within 1.5 miles of ground zero. An asteroid the size of a 20-story building is bad news.

How many Tsar bombas would it take to destroy a 1km asteroid?

This question asks about a 1km asteroid. Roughly once every 440,000 years this happens and when it does you can expect 90,000Mt of energy roughly half in the atmosphere and another half when it hits the ground. That’s just shy of 1000 Tsar Bombas in the air and another 1000 Tsar Bombas on the ground!