what is an earthquake what is an earthquake
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Answer:
An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in size from those that are so weak that they cannot be felt to those violent enough to propel objects and people into the air, and wreak destruction across entire cities. The seismicity, or seismic activity, of an area is the frequency, type, and size of earthquakes experienced over a period of time. The word tremor is also used for non-earthquake seismic rumbling.
At the Earth's surface, earthquakes manifest themselves by shaking and displacing or disrupting the ground. When the epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently to cause a tsunami. Earthquakes can also trigger landslides and occasionally, volcanic activity.
In its most general sense, the word earthquake is used to describe any seismic event—whether natural or caused by humans—that generates seismic waves. Earthquakes are caused mostly by rupture of geological faults but also by other events such as volcanic activity, landslides, mine blasts, and nuclear tests. An earthquake's point of initial rupture is called its hypocenter or focus. The epicenter is the point at ground level directly above the hypocenter.
What is an Earthquake ?
Answer :- In the earth's crust the movement Ltd cause stress for buliding up at points of weakness, to deforms the rocks.
↺Suddenly Earthquake is realised by the stored energy. Intense vibrations, spread out from the initial point of rupture, and to focus, like ripples on a pond.
↺By these wave only grounds shake and can travel large distances in all directions. Near the focus waves can be very large, making them extremely destructive.
☞Extra Information☜
Where do earthquake Occur ?
Answer :- A map of the world's earthquakes shows that most of them lie in narrow zones, often around the edges of the continents, or in the middle of the oceans.
↺if u will look on the patterns in the whole world where earthquake occurs, it is clear that most of the earthquake activity is concentrated in the number of distinct earthquake belts.
↺There are many earthquakes recorded around the edge of the Pacific Ocean, or in the middle of the Atlantic Ocean.
Where are the Effects of earthquakes ?
Answer :- The Main Effects of Earthquakes are :---
↺Deformed ground surface.
↺Damage to man made structures.
↺Damage to towns and cities.
↺Loss of Human and Animal Life.
↺Faluts the main damage is caused to human, animal Life and damage to properties.
DID you know ?
↺ It is important in earthquake prone countries such as japan to build houses and buildings that react well to earthquakes.
↺Collapsing of bulidings and because of the Earthquakes can be stopped with the help of Good Engineering.