Natural earthquakes
The earthquake is a natural disaster, a kind of phibat Earth. Most of the time is a natural phenomenon caused by the vibration of the ground. Due to release energy to thermal stress. Usually caused by the movement of the fault within the crust layer on the outside of the structure of the world. With motion or change slowly on a regular basis (see the movement of plate tectonics) This condition occurs most often in the realm of plate tectonics. Divided into lithosphere crust layer (lithosphere) Calling the earthquake occurred along the boundary of the crust that earthquakes between sheets (interplate earthquake) Earthquake in sheets
Earthquake from human action
has both direct and indirect, such as explosions. Mining Build a dam or reservoir near fault The mechanical work. Traffic includes nuclear waste storage, underground etc.
.• Creation of a large reservoir and dam, which may be experiencing earthquakes due to the weight of the water in the dam to release energy. Make a stress state of tension in the area changed. Resulted in a cumulative resistance power stones This feature is called the earthquake "a local earthquake. Most are centred around the depths 5-10 km, the size and frequency of earthquakes will be reduced gradually. Reports on earthquakes in this country ever had, when Hoover Dam, United States.Prof. 2488, but there is very little violence. A check dam at sin in Zimbabwe when Thomas 2502 (1959) Creek dam road. Country Greece When the first violent and 2506 (1963) once caused a dam waiting around. In India country. When BC. 2508 (1965) which reaches 6.5 Zurich one makes more than 180 people killed [1]
• The deep-level mining, in which the mining quarry, which may cause a vibration up.
.• Underground water pumping underground water pumping up to excessive use, including natural gas and oil extraction, which can cause stones that support the emerging movement
.• Experimental nuclear explosions underground, causing vibration from blasting experiments which cause affecting the stones below the crust is
.
การแปล กรุณารอสักครู่..
