Parameter Fitting of Seismic Intensity Attenuation Model in Xinjiang

• 作 者: Tan Ming Li Shuai Sun Jing Wang Wei Tang Lihua Wu Chuanyong
• 机 构: Earthquake Administration of Xinjiang Uygur Autonomous Region,
• 出 处: Earthquake Research in China
• 发表日期: 2013年02期
• 关键词: attenuation destructive fitting summarized historical magnitude epicenter ellipt

By using the existing historical earthquake investigation data in Xinjiang,this paper obtained the envelope curves of isoseismal maps of 103 destructive earthquakes occurring from 1716 to 2010 after digitization of the data. The author summarized the seismic intensity attenuation laws in the Xinjiang region with the multiple regression fitting method. The intensity attenuation function of the elliptical model was provided and the fitting results in different periods and areas were compared. Finally, the intensity attenuation relationship in the Xinjiang region was obtained by the method of constraining the start and end of the attenuation curves.

By using the existing historical earthquake investigation data in Xinjiang, this paper obtained the envelope curves of isoseismal maps of 103 destructive earthquakes occurring from 1716 to 2010 after digitization of the data. The author summarizing seismic intensity attenuation laws in the Xinjiang region with the multiple regression fitting method. The intensity attenuation function of the elliptical model was provided and the fitting results in different periods and areas were compared. Finally, the intensity attenuation relationship in the Xinjiang region was obtained by the method of constraining the start and end of the attenuation curves.