Ground Motion Models for the Induced Earthquakes by the Geothermal Power Plants Activity

SUMMARY: This research paper focuses on the development of ground motion models for simulating the main characteristics of recorded earthquake accelerograms induced by geothermal power plants (GPPs) operation. In this regard, firstly, a worldwide database for the GPP-induced earthquakes is gathered, containing 110 events and 664 recorded accelerograms. All the data are processed using a combined denoising method. Afterward, their main seismic characteristics are studied statistically, in both horizontal and vertical directions. Finally, different sets of ground motion models are developed for simulating the ground motion peak values, duration, 5% damped spectral acceleration and velocity in horizontal, and vertical directions.