Imaging of Earthquake Sources Using Elastic Waves

使用弹性波对地震源进行成像

• 批准号: 8614830
• 负责人: George McMechan
• 金额: $ 2.41万
• 依托单位: University of Texas at Dallas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-01 至 1988-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8614830&HistoricalAwards=false
• 关键词: Imaging; Earthquake; Sources; Using; Elastic

As part of previous NSF supported research (EAR 85-07929), software was developed for reverse-time extrapolation of elastic waves. This was done in the context of imaging of Earth structure, but, the same concepts may also be directly applied to imaging of earthquake sources. Exiting studies of earthquake imaging use the acoustic wave equation, so that only P-waves are considered. Thus, the ability now exists to produce concurrent images of both the P and S waves by extrapolating the observations with the elastic wave equation and this is the goal of the proposed research.

作为先前 NSF 支持的研究 (EAR 85-07929) 的一部分，开发了用于弹性波逆时外推的软件。 这是在地球结构成像的背景下完成的，但是，相同的概念也可以直接应用于地震源成像。 现有的地震成像研究使用声波方程，因此仅考虑纵波。 因此，现在可以通过用弹性波方程推断观测结果来生成 P 波和 S 波的并发图像，这就是本研究的目标。