Collaborative Research on the Sumatran Subduction Zone and Great Sumatran Fault

小行星9406781 这项研究是由加州理工学院、明尼苏达大学和德克萨斯大学合作进行的，是对苏门答腊两大板块边界断层的研究。 由NSF资助的初步研究证明了这些项目的巨大潜力。 这项工作解决了有关大地震的可重复性和斜向会聚板块边界的运动学的基本问题;结果将适用于美国加州、太平洋西北部和阿拉斯加的板块边界断层的地震危险。 目标是：1）使用淹没和出现的晚全新世珊瑚来绘制与苏门答腊俯冲带的历史、古代和未来大地震相关的垂直变形图，并确定其日期; 2）完成右侧走滑大苏门答腊断层的新构造图，并确定其晚第四纪滑动速率。 这项研究是国家地震减灾计划的一个组成部分。 ***

9406781 Sieh This research, which is a collaboration between the California Institute of Technology, the University of Minnesota and the University of Texas, is a study of the two great plate-boundary faults of Sumatra. Preliminary studies funded by the NSF demonstrate the high potential of these projects. The work addresses fundamental questions concerning both the repeatability of great earthquakes and the kinematics of obliquely convergent plate boundaries; results would apply to earthquake hazard at plate-boundary faults in the U.S. in California, the Pacific Northwest and Alaska. The goals are 1) to use submerged and emergent late Holocene corals to map and to date vertical deformations associated with great historical, ancient and future earthquakes of the Sumatran subduction zone and 2) to complete a neotectonic map of the right-lateral strike-slip Great Sumatran fault and to determine its late Quaternary rates of slip. This research is a component of the National Earthquake Hazard Reduction Program. ***