Theoretical and Observational Study of Waves Radiated from Faults in Heterogeneous Media

非均质介质中断层辐射波的理论与观测研究

• 批准号: 8904259
• 负责人: Keiiti Aki
• 金额: $ 7.88万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-07-01 至 1991-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8904259&HistoricalAwards=false
• 关键词: Theoretical; Observational; Study; Waves; Radiated

This research is to study the effects of the heterogeneity of elastic constants on the radiation from seismic sources. Both theoretical studies and data analysis will be applied to the significance of heterogeneous versus homogeneous fault zone theory using data from borehole seismograms recorded along the San Andreas fault near Parkfield, California. The results of this research will bear on the prediction of strong ground motion, and also for the estimation of source properties from both teleseismic and near-field data. It is therefore an important contribution to the National Earthquake Hazard Reduction Program.

本研究旨在探讨弹性常数的非均质性对震源辐射的影响。理论研究和数据分析将利用加利福尼亚帕克菲尔德附近的圣安德烈亚斯断层记录的钻孔地震记录数据，应用于非均质断层带理论的意义。本研究结果将对强地震动的预测，以及从远震和近场资料估计震源性质具有重要意义。因此，这是对国家减少地震灾害计划的重要贡献。