Faulting Processes of Large Earthquakes in the Baikal Rift Zone and Implications for Rift Development

这项建议寻求资金，以研究断层过程 六次震级在6.5到7.9之间的大地震， 在1950年到1967年间发生在贝加尔裂谷带。 这将通过区域性的波形建模来实现。 并进行了体波和表面波分析。 额外 对断层几何形状和破裂过程的限制将是 从现有的地质和地球物理研究获得的 裂谷 感兴趣的地震发生在裂谷地区 同时处于不同的进化阶段， 从完善的中央裂谷地堑到初期的 在121度E裂谷，没有伸展特征出现， 表面上 研究每个区域内的断裂过程 将有助于我们更好地理解断层是如何在 一个裂缝的发展，并将允许这些地区的比较， 其他处于不同演化阶段的大陆裂谷。 此外，分析了1957年西伯利亚木雅7.9级地震， 发生在板块内部的最大地震之一 自1900年以来，将提供重要的信息，地震 大陆裂谷其他地区的危险评估。

This proposal seeks funding to study the faulting processes of six large earthquakes with magnitudes between 6.5 and 7.9 that have occurred with the Baikal rift zone between 1950 and 1967. This will be accomplished through waveform modeling of regional and teleseismic body waves and surface wave analysis. Additional constraints on fault geometry and the rupture process will be obtained from available geological and geophysical studies of the rift. The earthquakes of interest occurred in regions of the rift that are contemporaneously in different stages of evolution, ranging from the well established central rift graben to incipient rifting at 121 degrees E, where no extensional features appear at the surface. Study of the faulting processes within each region of the rift will lead to a better understanding of how faulting in a rift evolves and will allow comparison of these regions with other continental rifts that are in different stages of evolution. In addition, analysis of the 1957 M=7.9 Muya, Siberia earthquake, one of the largest earthquakes to have occurred in an intraplate setting since 1900, will provide important information for seismic hazard assessment in other regions of continental rifting.