An earthquake is unrivaled of the most terrifying phenomena that nature thunder mug whip up. We generally think of the ground we stand on as rock-solid and completely stable. An earthquake can shatter that intuition instantly, and often with extreme violence.
Up until relatively recently, scientists only had uncorroborated guesses as to what actually inductd earthquakes. Even today there is hushed a certain amount of mystery surrounding them, and scientists have a much cle atomic number 18r understanding.
Scientists have identified the forces that cause earthquakes, and developed technology that can tell us an earthquakes order and origin. The next hurdle is to find a way of predicting earthquakes, so they dont catch people by surprise.
An earthquake is a quivering that travels through the earths crust. Technically, a large truck that rumbles down the track is causing a mini-earthquake, if you feel your house shaking as it goes by, but we tend to think of earthquakes as events that affect a fairly large atomic number 18a, such as an entire city.
in all kinds of things can cause earthquakes:
* volcanic eruptions
* meteor impacts
* electric resistance explosions (an underground nuclear test, for example)
* collapsing structures (such as a collapsing mine)
But the majority of naturally-occurring earthquakes be caused by movements of the earths plates.
Facts
We only hear about earthquakes in the countersign any once in a while, but they are actually an all(prenominal)day occurrence on our planet. According to the unite States Geological Survey, more than three million earthquakes occur every year. Thats about 8,000 a day or one every 11 seconds!
The vast majority of these 3 million quakes are extremely weak. The law of probability also causes a undecomposed number of stronger quakes to happen in uninhabited places where no one feels them. It is the big quakes that occur in highly populated areas that crap our attention.
Earthquakes have caused a great deal of property suffering over...If you want to get a full essay, order it on our website: Orderessay
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