Abstract
This study is done to find out the equation for reservoir induced seismicity. The mechanism and histories of reservoir induced seismicity are studied first to find out the factors affecting reservoir induced seismicity. A questionnaire survey is done to get an opinion of an expert on the effect of all the factors affecting reservoir induced seismicity. The results obtained from this questionnaire survey is used to find out the respective weightages of the factors by analytical hierarchy process. In the second part of the study, seismic details of 20 seismic and aseismic dams are found out in a questionnaire survey format. These details along with the weights found out in the first part of the study is used to find out the equation for reservoir induced seismicity by regression analysis.
Highlights
Earthquakes are one of the most devastating among the various natural hazards
The damage to human life and property due to large earthquakes are significant, the rapid rate of urbanization and globalization has caused the construction of mega infrastructures to support people which has increased the potential of earthquakes to a greater extent[5,6]
A seismic event is caused by excess concentration of stress in discontinuities of rock mass which leads to failure of the rock mass, the excess stress concentration is caused due to stress redistribution
Summary
In the last few decades, the world has been faced by a number of large earthquakes which has caused significant destruction of human life and property, earthquakes are the major natural disaster in our country too. Seismic activity may vary in intensity and in many events the energy dissipated may not reach the earth surface. It will reach the earth surface in case of large earthquakes and cause considerable shaking[7,8]. After that over 100 cases of reservoir induced earthquakes were recorded in which many of them had magnitudes greater than 6 and caused considerable damage[11,3]
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