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Tackling environmental hazards has always been one of the main concerns of the country is responsible for program planners. Unfortunately, due to the risks of the operation and less attention is gradual subsidence due to increased exploitation of Aquifers in recent years, learned to be a common problem accordingly. This study evaluates the possibility of subsidence phenomenon possible dangers it as a threat to human projects within the study adhered Kermanshah Plain. The statistics used for this study, 22 of 65 wells using geographic information system maps for the drop in water was prepared. The area that was chosen by the loss of water and geologic logs wells studies to identify the range of sensitivity maps were studied sediment deposits were prepared creating subsidence phenomenon. Finally, using the fuzzy model in GIS software, each layering sensitivity deposits fall in water level set membership, using overlapping gamma phase map sensitivity of the phenomenon of subsidence in 3 classes' sensitivity of large, moderate and low was preparation. The above map shows that the risk of subsidence phenomenon eastern city of Kermanshah in the southern village of Deh pahn that the drop in groundwater is high, the fine-grained sediments are higher than elsewhere in the region.

Keywords: Subsidence, Reduced groundwater levels, Kermanshah Plain, Geological log

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