Determination of Velocity and Fault Geometry from Inversion of the 1994 Active-Source LARSE Data Set

9405519星期四，本研究利用层析反演法，对洛杉矶地区地震实验(LARSE)1994年收集的活动震源数据进行了分析。LARSE的目标是提高对洛杉矶地区与断层有关的速度不均一性和地质结构的了解。这一分析的目的是：1)确定在Larse高分辨率地段下15公里或更深的P和S速度结构；2)通过速度不连续、低速带识别断层的位置，并将断层几何形状圈定为典型的震源深度。这项研究是国家减少地震灾害计划的一部分。***

9405519 Thurber This research involves the analysis, by means of tomographic inversion methods, active-source seismic data collected in 1994 by the separately-funded Los Angeles Region Seismic Experiment (LARSE). The goal of LARSE is to improve the understanding of velocity heterogeneities and geologic structure associated with faulting in the Los Angeles region. The goals of this analysis are 1) the determination of P and S velocity structure to a depth of 15 km or deeper beneath the high-resolution segment of LARSE, 2) location of faults as identified by velocity discontinuities, low velocity zones and delineation of fault geometry to typical hypocentral depths. This research is a component of the National Earthquake Hazard Reduction Program. ***