准实时中小地震震源机制波形自动反演系统的构建及在首都圈地区的应用

Abstract

Abstract: We developed a quasi-automatic real-time waveform inversion system for focal mechanisms of small to moderate earthquakes in Capital area, by using the Cut-And-Paste (CAP) method and continuously monitor regional broadband waveform data provided by the Institute of Earthquake Science, CEA, which can automatically detect the occurrences of seismic events and determine the focal mechanism solutions in real-time. In this study, automatic solutions can be obtained rapidly when the earthquake has occurred (M>3.5). In addition, since some bad or low signal-to-noise ratio (SNR) data can be included and participated in the inversion, the focal mechanism solutions can also be manually obtained. The system operation process and construction consideration are detailedly elaborated in the paper, and the system has preferable practicability by comparing the results with others.

Key words: Focal mechanism, Cut and paste (CAP), Quasi-automation waveform inversion, Capital area of China

CLC Number:

P315.7

QI Yu-ping, LI Min-feng, LI Sheng-qiang, WANG Bin, LIU Gui-ping, XIAO Ben-fu. Quasi-automatic Waveform Inversion for Focal Mechanisms of Small to Moderate Earthquakes and its Application in the Capital Area[J]. EARTHQUAKE, 2015, 35(4): 99-108.

References

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Quasi-automatic Waveform Inversion for Focal Mechanisms of Small to Moderate Earthquakes and its Application in the Capital Area

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