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Automatic detection of seismic body-wave phases and determination of their arrival times based on support vector machine

JIANG YiRan;NING JieYuan;State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development;School of Earth and Space Sciences,Peking University;  
Facing massive seismic data,it is urgent to automatically detect earthquakes and determine their arrival times accurately.Based on the support vector machine technology,we developed a method by using two classifiers SSD and SPS to automatically identify seismic body-wave phases and automatically determine their arrival times.Compared with the traditional automatic phasepicking methods,our method can more accurately identify both the seismic phases from noises,and the S phases from P phases.Moreover,we employ the array strategy to further effectively improve the accuracy of phase-detection.
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