Earthquake Lecture by Dr. Abhishek Baldwa

Earthquake is a violent tremor in the earth crust, sending out a series of shock-waves in all direction from its focus or place of origin. Three types of seismic waves as P,L, S. Different parts of earthquake is focus, epicenter and seismic waves. Causes of earthquake are volcanic eruption, static disequilibrium and man-made cause. There are two types of effect primary and secondary

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