首页|期刊导航|中国地震研究（英文版）|Study on the Inelastic Attenuation Coefficient, Site Response and Source Parameters in the Southeast Area of Gansu Province
中国地震研究（英文版）2008，Vol.22Issue(3)：286-296,11.
Study on the Inelastic Attenuation Coefficient, Site Response and Source Parameters in the Southeast Area of Gansu Province
Study on the Inelastic Attenuation Coefficient, Site Response and Source Parameters in the Southeast Area of Gansu Province
摘要
Abstract
Using digital seismograms recorded by the Gansu digital seismic network, the inelastic attenuation coefficient is calculated based on a genetic algorithm and the method proposed by Atkinson. Then, the site response and source parameters are investigated by the Moya method. The inversion results indicate the frequency-dependent inelastic attenuation, Q value, in the southeastern Gansu is estimated as Q(f) = 404.2f0.264. Except for the Tianshui station, the site responses of the other stations do not show significant amplifications, which is consistent with their basement on rocks. The stress drops of all 39 earthquakes range between 1×105 and 7×106 Pa. We also found the dependence of corner frequency on seismic moment and seismic magnitude.关键词
Quality factor (Q value)/Site response/Source parameterKey words
Quality factor (Q value)/Site response/Source parameter分类
天文与地球科学引用本文复制引用
Guo Xiao,Zhang Yuansheng,Shen Hailiang,Li Wen..Study on the Inelastic Attenuation Coefficient, Site Response and Source Parameters in the Southeast Area of Gansu Province[J].中国地震研究（英文版）,2008,22(3):286-296,11.基金项目
Foundation item: "Earthquake Risk Assessment and ActiveFaults Survey of Lanzhou City" (1-4-28-1) sponsored by China Earthquake Administration during the 10th "Five-YearPlan". Contribution number: LC20070064 for Lanzhou Institute of Seismology, China Earthquake Administration. （1-4-28-1）
