Processes of Active Deformation and Slip Transfer Along the Sierra Nevada-Great Basin Boundary Zone in the Lake Tahoe Basin

[903200schweickert]太平洋板块和北美板块之间的边界沿着美国西海岸的加利福尼亚部分扩散。最近的测量表明，相对于稳定的北美，内华达山脉地块正以每年约10mm的速度向北移动，约占太平洋/北美相对移动总量的25%。本项目详细介绍了太浩湖盆地中这种活动应变积累的组成部分及其所隐含的相关地震危险。各种测绘、构造和地震研究都旨在解决目前关于活动变形原因的两种假设。收集的数据也将适用于评估该地区潜在的地震危险。

9903200SchweickertThe boundary between the pacific plate and the North American plate is diffuse along the California sector of the West Coast of the US. Recent measurements indicate that the Sierra Nevada block is moving northward relative to stable North America at about 10mm/yr, which is about 25% of the total Pacific/North America relative movement. This project focuses in detail on the component of this active strain accumulation in the Lake Tahoe basin and the associated seismic hazard it implies. A variety of mapping, structural and seismic studies are aimed at resolving two current hypotheses for the cause of active deformation. Data collected will also be applicable to assessing the seismic hazard potential of this area.