Case study of reservoir triggered seismicity, Latian Dam, Tehran, Iran |
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| Authors: | Gholamreza Asadollahfardi Mohamad Fatemi Aghda Mehdi Rahbar |
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| Institution: | 1. Civil Engineering department, Kharazmi University, Kharazmi, Iran
2. Geological Department, Kharazmi University, Kharazmi, Iran
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| Abstract: | Latian dam is located in the North East of Tehran in Elburz Mountain. It falls in the category of large dams according to the International Committee on Large Dams (ICOLD). It was constructed in 1967 for agricultural purposes, drinking water, and power generation. Producing triggered earthquakes may be a consequent result of dam construction. In this paper, the complete seismic statistics of the region from 1996 onwards has been studied to understand the seismic condition of Latain region. For this purpose, frequency of earthquakes within a radius of 30/60 km around the dam is studied considering its relationship with the reservoir volume variation. Using Gutenberg-Richter rule, parameter b of the region was determined within the same region. The results of this study show the existence of triggered seismicity around the reservoir of Latian dam. Considering the tectonic-geological condition of the region, the existence of triggered earthquakes may create landslides in the reservoir and around it. |
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