摘要
对2013年灯塔M5.1地震前沈阳地震台JCZ-1T超宽频带地震计数字记录地脉动变化进行频域分析,经过大量多组不同频段的频域对比分析,确定了1.4~1.6 Hz和2~3 Hz频段在灯塔M5.1地震前沈阳地震台有地脉动异常变化,利用振幅值和频率做出了地震前地脉动幅度和频率变化曲线,并总结了灯塔地震前沈阳地震台地脉动的变化特征。
In this paper,the frequency domain analysis of the earth tremor of the JCZ-1T ultra-broadband seismometer of the Shenyang Seismic Station before the Dengta M5.1 earthquake in 2013 was carried out.After a large number of frequency-domain comparison experiments of different frequency bands,the earth tremor anomalous changes were found in 1.4~1.6 Hz and 2~3 Hz frequency band before Dengta M5.1 earthquake.The amplitude and frequency curves of the earth tremor before the earthquake were made by the amplitude and frequency data.And the earth tremor change characteristics of Shenyang Seismic Station before the lighthouse earthquake was summarized.
作者
荆涛
孙艺
方禹心
顾强强
安峻峰
JING Tao;SUN Yi;FANG Yu-xin;GU Qiang-qiang;AN Jun-feng(Shenyang Seismic Station,Liaoning Shenyang 110061,China;Liaoning Earthquake Agency,Liaoning Shenyang 110034,China)
出处
《防灾减灾学报》
2019年第4期41-45,共5页
Journal of Disaster Prevention And Reduction
基金
辽宁省地震局青年科研基金（LZ201831）
关键词
超宽频带
灯塔M5.1地震
震前地脉动
extra-broadband
Dengta M5.1 earthquake
the earth tremor before the earthquake
