【摘要】 甘肃省是我国地震多发地区之一,如何利用兰州数字地震台网的波形资料确定中小地震的地震矩张量等震源新参数已成为急需考虑的问题。本文重点介绍了利用台网记录的波形资料快速反演中小地震的地震矩张量所需要的两项非常基础而重要的工作,即速度模型的确立和格林函数库的建立。为了说明格林函数库技术在矩张量快速反演中的可行性和优越性,还给出了122个中小地震的矩张量反演的试验性结果。更多还原

【Abstract】 Gansu province is one of the regions with high seismicity in China. It is becoming a pushing matter that how the waveform data from Lanzhou Digital Seismic Network (LDSN) is applied to quick determination of moment tensor or other new source parameters for small and moderate earthquakes. This paper specially presents two works which are very fundamental and essential to quick determination of moment tensor using waveform data of the LDSN, and construct the velocity model and setup the Green′s function database. In order to illustrate the feasibility and advantage of the technique of Green′s function database, the experimental results of moment tensor inversion for 122 small and moderate earthquakes are presented.更多还原