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Waveform-Based Earthquake Location to Study Fault Mechanics and the Structure of Active Fault Zones

Waveform-Based Earthquake Location to Study Fault Mechanics and the Structure of Active Fault Zones
基于波形的地震定位研究断层力学和活动断层带结构
批准号:
9725238
负责人:
Gregory Beroza
金额:
$9.71万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1998
资助国家:
美国
项目状态:
已结题
起止时间:
1998-01-15 至 2000-12-31

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中文摘要
翻译
9725238比罗扎这项研究涉及开发一种自动技术,以获得非常精确的相对地震位置。利用波形互相关测量P波和S波的相对到达时间,可以减小观测误差。改进后的测量将被用作联合震源确定的输入。关键的挑战将是使这一过程自动化,使其能够得到广泛应用。该方法将用于研究由微震地震活动表示的断裂力学和活动断裂系统的结构。这项研究是国家减少地震灾害计划的一部分。***
英文摘要
9725238 Beroza This research involves the development of an automated technique for obtaining very precise relative earthquake locations. Observational errors will be reduced by measuring relative P and S wave arrival times using waveform cross correlation. The improved measurements will be used as input to a joint hypocentral determination. The key challenge will be to automate this process so that it can be widely applied. The method will be used to study fault mechanics and the structure of active fault systems as expressed by microearthquake seismicity. This research is a component of the National Earthquake Hazard Reduction Program. ***
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