Friday, August 13, 2010

Earthquake and major earthquakes of Nepal

The earthquake is the movement or shaking of earth surface. Certain energy is formed and reserved in same part of the earth. When the energy tries to burst out due to its internal pressure than its outer surface of earth shakes and earthquakes begins. Such burst of energy creates a certain wave known as seismic wave. When those waves create a vibration on the earth surface than it is called an earthquake. The region or point in earth where earthquake originates than it is called hypo center or focus and the point just above the earth surface is called epicenter. And the study of earthquake is known as seismology.
Lands in the Himalayan region are new and lie in tectonic area, this shows that it is at high risk earthquake point of view. The study of earthquake i.e. seismology shows that Nepal lies in the eleventh rank of high risk from earthquake. In Nepal, the most disasters earthquake occurred in the year 1933 A.D. That earthquake had a magnitude of 8.3 and nearly 8519 people were killed and created a great loss of property. Nepal has to face a great difficulties during those period. Similarly in 2037 B.S. in the same way an earthquake of magnitude 6.5 with the epicenter in Bajhang district took the lives of 103 people and more than 2500 were left homeless. Similarly in 2045 B.S. another earthquake of magnitude 6.6 with the centre in Udaypur district killed 721 people and 65000 people were left homeless. Geologists predicts that we may have to face earthquake at any time in the future. After all science is not able to do anything for this purpose. They don’t have idea when and where it occurs. But they have made different measures to be escape and to be safe from earthquake.

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