摘要
“九五”期间,广东省地震局在原地震遥测台网的基础上建成了广东数字地震遥测台网(以下称广东台网)。数字地震观测系统的建设使地震记录的存储、分析变得十分方便,宽频带、大动态的数字记录中包含了模拟记录所没有的丰富的信息。台网除了完成日常的监测任务,发挥速报效能外,如何从丰富的地震记录里提炼新的信息,是各台网目前面对的问题。本文以2001年4月阳江4.7级地震为例,从中小地震的震源参数和震源机制的求解方面,介绍了广东台网在提供新参数方面所做的一些工作。
Digital seismic observation system had been built in Guangdong. It′s very easy to store and analyze the digital records with broadband and big dynamic range. The information is much more than that of analog records. Digital Seismic Network (DSN) should take the new information from digital records besides finishing the daily earthquake monitoring tasks and reporting the earthquake parameters quickly.That is also a question to which all DSN must face at present. In this paper, from source parameters and focal mechanisms of moderate small earthquakes, we introduced some new parameters at Guangdong Digital Seismic Network, for Yangjiang earthquake with M L 4.7 on Apr of 2001 as an example.
出处
《地震地磁观测与研究》
2004年第B09期119-128,共10页
Seismological and Geomagnetic Observation and Research
基金
中国地震局<地震图像与数字化观测资料应用实验室>"九五"广东省防震减灾重点项目资助
关键词
数字记录
震源参数
震源机制
现代地震目录
digital records,source parameters,focal mechanisms,modern seismological catalog
