Abstract
The location of buried faults, especially in the near surface, is of considerable importance with respect to earthquake prediction, disaster reduction, and city planning. Electrical resistivity tomography (ERT), which can have an effective depth of investigation of several hundred meters, has been applied to the detection of buried faults in urban areas on the China mainland since 2001, and has proven to be one of the most powerful geophysical tools for this application. To better facilitate exploration for buried faults, we present this study of the Zhangdian-Renhe fault. Using our method of interpretation and analysis of the resistivity tomogram obtained by ERT, we infer the presence and location of this fault. Subsequent geologic drilling records prove that our results are correct. We demonstrate that ERT can play an important role in the exploration for buried faults in urban areas.
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