摘要
选取江苏数字地震台网记录的部分天然地震与人工爆破波形数据,通过波形对比分析、震幅比以及频谱等方面的对比发现两者之间不同之处。把这些不同的方法应用到数字地震台网实际工作中,能够快速有效地分辨出天然地震和人工爆破,为今后震相的识别提供可靠依据。
The crux of rapid reports of earthquakes is to establish three factors of the event as soon as possible.Seis- mic phase analysis is the basic work of earthquake monitoring, yet all types of seismic phase demand correct inter- pretation to determine the earthquake epicenter within the network. Summarizing rapid treatment methods can im- prove seismic phase analysis and the speed of issuing the rapid report.The present situation of rapid reports of earth- quakes in Jiangsu province is analyzed from the viewpoint of both science and society, with recognition of its develop- ment.On this basis and using waveform data recorded by the Jiangsu digital seismic network,we studied the differ- ence between natural earthquakes and explosions by contrasted comparative analysis of the waveform, amplitude, fre quency spectrum,and other aspects,and found a difference between earthquakes and explosions, both in Jiangsu and adjacent areas.These methods, applied to digital seismograph network practice, can quickly and effectively differentiate natural events from artificial explosions.As a quick distinguishing method,it represents a swift and proficient application during major earthquakes,which provides a reliable basis for the identification of future phases.
出处
《地震工程学报》
CSCD
北大核心
2015年第1期228-231,共4页
China Earthquake Engineering Journal
基金
中国地震局三结合资助课题目(151005))
关键词
天然地震
人工爆破
震幅比
频谱
natural earthquake
explosion
amplitude ratio
frequency spectrum
