Seismicity in mines, in general, depends on depth, production rate, mining geometry and geological discontinuities such as dykes, faults etc. Induced earthquakes differ from normal earthquakes in that they have occurred prematurely due to an external trigger. Except for much of the micro seismicity, the virgin state of stress in the Earth’s crust depends on, among other factors, gravity and tectonics. In, or near, a mine the stress state is disturbed by the mining activities leading to locally increased or decreased stresses. The extent and the consequences of a failure are controlled by three fundamental elements: geo mechanical conditions, stress state and mining activities. A mine can consist of many different kinds of excavations spread over a large area; hence the disturbance of the local stress field can be extensive. The complex layout and the time dependent mining sequence may make it difficult to determine the secondary stresses around the openings and in the rock mass surrounding the mine. Mine earthquake has a close relation with mining activities and underground rock’s movement and deformation. Mine earthquake is caused by the movement of hanging layer which is due to mining activities. Keywords: Mining- induced seismicity, rock bursts, triggered, earthquakes, mines, stressCite this Article Hitesh Sharma, Govardhan Bhat. A Review on Mining Induced Earthquake. Journal of Structural Engineering and Management. 2015; 2(3): 8–21p.
