曹妃甸地震台网天然地震与爆破波形记录特征  

About waveform recording characteristics of natural earthquakes and blasting in Caofeidian Seismic Network

作　　者：董祎玮 赵建明 李金 刘楚 任佳 王妍 符泽宇 荣伟健 孟令焕 Dong Yiwei;Zhao Jianming;Li Jin;Liu Chu;Ren Jia;Wang Yan;Fu Zeyu;Rong Weijian;Meng Linghuan(Tangshan Central Seismic Station, Hebei Province 063021, China)

机构地区：[1]唐山地震中心台,中国河北063021

出　　处：《地震地磁观测与研究》2017年第3期30-34,共5页Seismological and Geomagnetic Observation and Research

基　　金：河北省地震局青年激励项目"曹妃甸测震台网地震波形特征分析";河北省地震局科技星火计划项目"2015年9月14日昌黎4.2级地震序列及波速比研究"(项目编号:DZ20160410058)

摘　　要：统计曹妃甸地震台网成立以来记录的地震波形资料,对比天然地震和化学爆炸、矿爆的波形,发现天然地震与爆破震相特征在P波初动、周期、波形衰减及振幅等方面有很大不同,并对波形进行频谱分析,进一步识别天然地震及爆破。In this article,the seismic waveform recordings of Caofeidian Seismic Network since its inception have been summarized.The waveforms of natural earthquake and chemical explosion and mine blast that it received are compared.The difference between natural earthquakes and blasting seismic is illustrated with examples.The comparisons with waveform of the natural seismic and blasting show many differences in P wave touches,wave attenuation,amplitude and cycle.Through the spectrum analysis of waveform,the two types of seismic activity were further distinguished.

关 键 词：天然地震 爆破 波形分析 快速傅里叶变换 频谱分析 

分 类 号：P315[天文地球—地震学] TB41[天文地球—固体地球物理学]