Analysis of Digital Seismic Data from the Sumatran Fault

这项研究是为了继续分析自1990年11月以来一直在苏门答腊北部（多巴湖附近）苏门答腊断层周围运行的数字网络的地震数据。这些数据首次提供了苏门答腊断层的详细资料。该研究将利用到达时间数据、波形、地震位置和断平面解来回答与该地区地质构造有关的地震分布和震源机制问题。这项工作是在印度尼西亚气象和地球物理机构（雅加达）的合作下进行的，该机构在印度尼西亚经营地震台网。这项研究是国家减少地震危害计划的一个组成部分。

This research is to continue analysis of seismic data from a digital network that has been operating around the Sumatran fault in northern Sumatra (near Lake Toba) since November, 1990. These data offer the first detailed look at the Sumatran fault. The study will use the arrival time data, waveforms, earthquake locations, and fault plane solutions to answer questions about earthquake distribution and focal mechanisms in relation to the geological structures in the region. This work is being done in cooperation with the Indonesian Meteorological and Geophysical Agency (Jakarta) who operate the seismographic networks in Indonesia. This research is a component of the National Earthquake Hazard Reduction Program.