福建地区人工爆破与天然地震的判定  

Waveform distinction between artificial explosions and natural earthquakes recorded in Fujian area

作　　者：蔡杏辉[1] 邵平荣[1] 段刚[1] 杨贵[1] 

机构地区：[1]福建省地震局,中国福州350003

出　　处：《地震地磁观测与研究》2013年第1期87-91,共5页Seismological and Geomagnetic Observation and Research

基　　金：福建省地震局科研基金项目(SF201105)

摘　　要：利用福建地震台网的人工爆破与天然地震的数字记录,采用波形对比法,分析发生在同一地区的爆破与地震波形特征。结果发现,爆破与地震在震相、P波初动符号分布、振幅比A_S/A_P等方面具有不同特征,据此得出爆破识别的有效判据,并对一次疑爆事件进行有效检验,为今后爆破的识别提供依据。Using the digital waveform data of artificial explosion and natural earthquake recorded by Fujian Seismic Network, we analyzed the artificial explosion and natural earthquake waveform characteristics of same area by waveform comparison method. It is found out that there are different features in phase, distribution of P-wave first motion marks, amplitude ratio As/Ap between explosion and earthquake records. Based on these features, we gave the ex- plosion identical criterion, also based above identical criterion to test once difficulty explosion, the results provide the basis for explosion identification.

关 键 词：爆破 波形特征 振幅比 识别判据 

分 类 号：P315[天文地球—地震学]