地震的发生原因~请用英文回答.尽量多写些,补充地震怎么发生的?请描述.

地震的发生原因~请用英文回答.尽量多写些,补充地震怎么发生的?请描述.
地震的发生原因~请用英文回答.尽量多写些,
补充
地震怎么发生的?请描述.

地震的发生原因~请用英文回答.尽量多写些,补充地震怎么发生的?请描述.
Causes the Earth surface layer vibration reason to be very many,according to the earthquake origin, may divide into the earthquakefollowing several kinds:
1. tectonic earthquakes
Because the underground deep place rock layer moves out ofplace the earthquake which, bursts creates to be called the tectonicearthquake (chart 1 - 1). This kind of earthquake occurs number oftimes most, the destructive power is also biggest, approximatelycomposes above world earthquake 90%.
2. volcanic earthquakes
As a result of the volcanism, like the magmatic activity, thegaseous detonation and so on the earthquake which causes is called thevolcanic earthquake. Only has in the volcanic activity area only thenpossibly has the volcanic earthquake, this kind of earthquake onlyoccupies the world earthquake about 7%.
3. caves in the earthquake
Because the underground grotto or the mine pit crown cave inthe earthquake which causes to be called caves in the earthquake. Thiskind of earthquake scale quite small, the number of times very arealso few, even if has, also often occurs in the limestone cave denselycovered limestone area or the large-scale underground mining miningarea.
4. induces the earthquake
Because the reservoir stores water, the oil field pours waterthe earthquake which and so on the activity initiates to be calledinduces the earthquake. This kind of earthquake merely in certainspecific reservoir storehouse districts or oil field area occurrence.
5. artificial earthquakes
The underground nuclear explosion, the blasting explosivedemolition and so on artificial cause the ground vibration is calledthe artificial earthquake. The artificial earthquake is an earthquakewhich causes by the artificial activity. If the industry demolition,the underground nuclear explosion create vibration; Carried onhigh-pressure waterflood as well as the big reservoir after the deepwell stores water increased the earth's crust pressure, sometimes alsocould induce the earthquake.
The earthquake wave originates the place, is called center of origin.Center of origin in the ground vertical projection, is called theepicenter. Is called the depth of origin the epicenter to the centerof origin depth. Usually is smaller than 70 kilometers the depth oforigin to call the shallow source earthquake, the depth to call thesource earthquake, the depth in 70-300 kilometer to be bigger than 300kilometers to call the deep source earthquake. The ruinous earthquakegenerally is the shallow source earthquake. If 1976 Tangshanearthquake depth of origin was 12 kilometers.

An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves. Earthquakes are recorded with a seismometer, also known as a seismograph. The moment magnitud...

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An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves. Earthquakes are recorded with a seismometer, also known as a seismograph. The moment magnitude of an earthquake is conventionally reported, or the related and mostly obsolete Richter magnitude, with magnitude 3 or lower earthquakes being mostly imperceptible and magnitude 7 causing serious damage over large areas. Intensity of shaking is measured on the modified Mercalli scale.
At the Earth's surface, earthquakes manifest themselves by a shaking and sometimes displacement of the ground. When a large earthquake epicenter is located offshore, the seabed sometimes suffers sufficient displacement to cause a tsunami. The shaking in earthquakes can also trigger landslides and occasionally volcanic activity.
In its most generic sense, the word earthquake is used to describe any seismic event—whether a natural phenomenon or an event caused by humans—that generates seismic waves. Earthquakes are caused mostly by rupture of geological faults, but also by volcanic activity, landslides, mine blasts, and nuclear experiments.
An earthquake's point of initial rupture is called its focus or hypocenter. The term epicenter means the point at ground level directly above this.

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The movement of the faults of the earth makes the very part shake, that`s reason why there are eathquakes.