[FunOnTheNet] : Earthquakes...................

 

 

An earthquake (also known as a quake, tremor or temblor) is the result of a sudden release of energy in the Earth's crust that creates seismic waves. The seismic activity of an area refers to the frequency, type and size of earthquakes experienced over a period of time. Earthquakes are measured with a seismometer; a device which also records is known as a seismograph. The moment magnitude (or the related and mostly obsolete Richter magnitude) of an earthquake is conventionally reported, 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 shaking and sometimes displacing 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.
These pictures are evidence of what nature can do to us, in a split second.

Haiti

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Japan

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San Francisko

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China

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San Francisko

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Pakistan

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Romania

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USA

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Paso Robles, California

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Taiwan

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Beichuan, Sichuan province, China

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L'Aquila, Italy

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Chengdu, China

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Northridge, USA

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California, USA

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Kobe, Japan

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Mexico City

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Los Angeles, USA

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Indonesia

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Spitak region, Armenia

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Beichuan, Sichuan Province, China

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Beichuan, Sichuan Province, China

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Los Angeles, California

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Chile

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Northridge, Los Angeles, California

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Haiti

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Turkey

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Chile

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Chile

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Taiwan

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Canterbury, New Zealand

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