[1]GENG Jie,CHEN An-fang,PAN Shuang-jin.Extracting the Precursor Anomaly of Ground Fluid Using Wavelet Transform Method[J].Journal of Seismological Research,2009,32(01):12-17.
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Extracting the Precursor Anomaly of Ground Fluid Using Wavelet Transform Method
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
32
Number of periods:
2009 01
Page number:
12-17
Column:
Public date:
2009-01-23
- Title:
- Extracting the Precursor Anomaly of Ground Fluid Using Wavelet Transform Method
- CLC:
- P315.75
- DOI:
- -
- Abstract:
- We briefly introduce the wavelet transform method,and use the method to analyze the water radon data of 9 wells in Shanghai from 1992 to 2002,Liaogu Well no.1 in Shandong before the 1983 Heze,Shandong,ML5.9 and 1998 Qingfeng,Henan,MS4.0 earthquakes,and Shiliquan Well in Zaozhuang before the 1999 Cangshan,Shandong,ML5.2 earthquake.In Shanghai,the anomalies extracted by using 6-order wavelet transform correspond to the earthquakes well; and the 1- to 6-order wavelet coefficients all show anomaly before the Heze,Qingfeng,and Cangshan earthquakes.Therefore,we consider that using wavelet transform method to extract seismic precursor anomaly is efficient.
- References:
- -
- Similar References:
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Last Update:
2009-01-23