Earthquake CONTENTS What is earthquake Signals of earthquake
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Earthquake
CONTENTS � What is earthquake? � Signals of earthquake � Causes of earthquake � How do tectonic plates move? � Dangerous region of Indian Subcontinent � Remedies � conclusion � References
What is Earthquake �An earthquake is a shaking of the ground caused by the sudden breaking and movement of large sections (tectonic plates) of the earth's rocky outermost crust. The edges of the tectonic plates are marked by faults.
Signals Of Earthquake � animal behavior-Animals before earthquake come they behave in hurry. They behave like they want to go outside wherever they are. � Birds behavior- Birds before earthquake come make so much noise and fly here and there. � Moving of Earth-Earth moves when earthquake come and speed of moving depends how fast the earthquake is. � It is scientifically proved that before earthquake there is a high tune happens that a human beings can not hear. Only animals and birds can hear this voice.
Cause of Earthquake 2 types of cause Tectonic Volcanic
Tectonic �There are two reasons of earthquake but major earthquake are of the tectonic type. �They are produced due to sudden movement of rocks. �Volcanic earthquake comes only in mountain ranges.
How do Tectonic plates move? �Tectonic Plates : large sections of the earth's rocky outermost crust that have continents over them and have continental names like. European plates, Indian Plates etc.
SOME PLATES
2 types of movements of plates FOLDING FAULTING
� Faulting: It happens in weak areas of the earth’s rock. The movement occurs when the rocks can no longer bear the tension and forces that have build up in them. � Folding: Folding is a movement that occurs when a tectonic plates occupies other by passing over it or by slapping down.
Dangerous region of Indian subcontinent
Remedies § Earthquake is natural. We are not able to stop it but yes by following some steps we can save our lives-By covering our head. -Go in a large open field -Walk in corner if you are coming out from a building or home.
Remedies
Conclusion �Earthquake is a natural phenomenon. We can not stop it but we need to be aware about this. �It is random now these days. Within 10 days there are 3 countries which bear the earthquake-Afganisthan on 11 April 2016, Japan on 15 April 2016, Ecuador on 17 April 2016.
References �Google-Wikipedia �Https: //www. americaninstituteofhistor yofnature. org//wiki/History_Of_Nature �Class-7 th Geography NCERT Book �www. encyclopedia. com/topic/plate_te ctonics. aspx �Pictures from Google Images.
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