论文部分内容阅读
“重新修定ISC的观测报告(1964-2010)”是ISC正在进行的重要项目.ISC最新的定位方法和技术ISCloc是该项目采用的主要方法和技术,它包含四个特点:使用所有的可基于ak135走时模型预测的震相数据;可通过领域算法(NA)得到合适的初始点;在线性迭代最小二乘法时考虑了走时误差的互相关性;测定自由深度值前需满足一定的条件.ISCloc重新测定了1964-2010年间ISC先前所测的1100 000次以上的全球地震,以发震时刻、震中参数、地震波到时残差和震源深度为判据,从中选出需要重点进行人工分析和审核的地震180 000~200 000次.截至2015年底,已完成20世纪60年代地震的分析和审核,待全部地震汇编完成,估计要到2019-2020年.
ISCOC is the main method and technology used in this project, and it contains four characteristics: the use of all Can be based on ak135 travel time model prediction phase data; domain algorithm (NA) can be obtained by the appropriate initial point; linear iterative least square method taking into account the travel time error cross-correlation; before the determination of the free depth value must meet a certain Conditions.ISCloc re-measured the ISC previously measured more than 1100 000 global earthquakes between 1964 and 2010, based on the criteria of occurrence time, epicenter parameters, the arrival time residual of the seismic waves and the depth of the source, and selected the need to focus on artificial The earthquakes analyzed and verified 180,000 ~ 200,000 times By the end of 2015, the analysis and review of earthquakes in the 1960s have been completed and all the earthquakes have been compiled and are expected to reach 2019-2020.