Broadband Seismological Investigations of Earth Structure and Earthquake Sources

[9418643 . Lay]这项研究涉及使用宽带地震数据来解决有关地球结构和地震破裂过程的基本问题。研究领域包括：俯冲带附近层状的短周期分析、深板块能量聚焦效应及其相关板块结构、新的非球面全球剪切波模型的构造分析、基于体波和面波数据的统一震源模型的建立。研究结果适用于作为板块构造驱动力的地幔对流，也适用于多次破裂地震过程中地震波产生的细节。这项研究是国家减少地震危害计划的一个组成部分。* * * ? ?

9418643 Lay This research involves the use of broadband seismic data to address fundamental questions about earth structure and earthquake rupture processes. The areas to be studied include short-period analysis of layering near subduction zones, deep slab energy focusing effects and associated slab structure, tectonic analysis of new aspherical global shear-wave models, development of unified seismic source models from body wave and surface wave data. The results apply to convection in the mantle which is the driving force of plate tectonics, and to details of the generation of seismic waves in a multiple rupture earthquake process. This research is a component of the National Earthquake Hazard Reduction Program. *** ??