摘要
本文收集了1936年4月1日2时至3时(UTC)全球168个台站的仪器记录,根据1936年4月1日广西灵山县东北部M6地震的宏观震中(22.5°N,109.4°E)和计算所得各台站初至P波的到时残差,将168个台站的数据与灵山主震进行关联或相关性分析.最终有13个台站的数据与灵山主震关联成功,其中7—8个台站的到时数据参与了定位计算.分别利用我国国家测震台网的常规定位方法和技术以及ISC的定位方法和技术对灵山主震进行重新定位,两种重定位方法得到的灵山主震震中相距47.6km,经过比较,我国国家测震台网的定位方法和技术更适合灵山主震的数据特点.
The records of 168 global seismographic stations from 2 to 3 o′clock（UTC）on April 1,1936 have been collected in order to locate the strong earthquake M63/4 occurred in northeast Lingshan of Guangxi.The station readings were grouped and associated based on the macro-epicenter of Lingshan mainshock（22.5°N,109.4°E）and the initial P wave residuals of the seismic stations.Finally records of thirteen stations were successfully associated to Lingshan mainshock,and phase arrivals of 7--8 stations contributed to the event relocation.The routine location method and model of China National Seismic Network Center and ISCloc have been used to relocate the Lingshan mainshock,and the relocation results show that the distance between the two relocated epicenters is about 47.6 km.By comparison,the routine location method and model of China National Seismic Network Center are more suitable for the data with the poor observational conditions of Lingshan mainshock.
出处
《地震学报》
CSCD
北大核心
2017年第6期870-879,共10页
Acta Seismologica Sinica
基金
中国地震局和广西科学研究与技术开发计划项目(桂科攻14251008)资助
关键词
灵山主震
震源参数测定
到时数据关联
Lingshan mainshock
source parameters determination
phase arrivals association
