Probabilistic Seismic Hazard Assessment of City Center of Kayseri

44905

Seismic hazard in city center of Kayseri is evaluated with probabilistic approach in this study. Earthquakes happened between 1900 and 2018 around the city are considered for the evaluation, and magnitude-recurrence relation of these events is obtained. Using a ground motion prediction equation, peak ground acceleration, spectral accelerations at period of 0.2 and 1 sec with different return periods are calculated and corresponding seismic hazard curves are demonstrated. Uniform hazard spectra are constructed and compared with those spectra obtained from Turkish seismic design code. Also, seismic hazard is deaggregated to distinguish how different magnitude and distances contribute expected hazard in the city center. Seismic hazard curves obtained in this study can be used to construct earthquake spectra for different return period earthquake events, and for the selection of ground motions to be used in dynamic analysis of structures. Results of seismic hazard deaggregation show that mean magnitudes contributing the hazard at the site considered are around 6.3 for peak ground acceleration and spectral acceleration at 0.2 sec, and 6.7 for the spectral acceleration at 1 sec period for both probability of exceedance of 2% and 10% in 50 years and soil types that have shear wave velocity of 760 m/s or higher.

286

Probabilistic seismic hazard , Seismic hazard curve , Seismic hazard deaggregation , Kayseri

Erciyes University Journal Of The Institute Of Science an‎d Technology

298

Erciyes University Journal Of The Institute Of Science an‎d Technology