Dr.Lakhimi Gogoi

Earthquake:         Earthquake is the sudden and rapid shaking or rolling of the Earth’s surface caused by the release of stress stored in rocks. It is an incidence of tremors / lateral movement or ground displacement caused by pressure dynamics within and below the earth's crust or due to volcanic activity. It is the tremors which are produced by the passage of vibratory waves through the rocks of the earth. The vibration or shaking of the earth’s crust proceeds in the form of waves from the centre of the disturbance.                   The surface where they slip is called the fault or fault plane . The location below the earth’s surface where the earthquake starts is called the hypocenter , and the location directly above it on the surface of the earth is called the epicenter . Taking the earth as a whole earthquakes of one kind or another take place almost every minute, but the great majority of them are so feeble that their occurrence is not felt by man except th

What is Strait:         A strait is a thin channel of a waterway that connects two large water bodies having some characteristics like –  Formed by natural processes Narrower than the seas it connects Navigable         It most commonly refers to a channel of water that lies between two land masses. Major straits of the world are generally used by commercial shipping to travel from one sea or exclusive economic zone to another and they are of immense strategic and commercial importance. They also serve as a channel through which ocean currents pass modifying the climate of that area. It is seen that In these reasons straits play an important role in physical and human geography. Major Important Strait of Asia:   There are 7 major straits in Asia. These are – 1.      The Bab el-Mandeb, or “Gate of Tears”. 2.      Strait of Hormuz 3.      Duncan Passage 4.      The Korea Strait 5.      Ten Degree Channel 6.      Taiwan Strait 7.      Qiongzho