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Determination of regional earthquake source parameters in wavelet domain

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Abstract

Investigating source parameters of small and moderate earthquakes plays an important role in seismology research. For small and moderate earthquakes, the mechanisms are usually obtained by first motion of P-Wave, surface wave spectra method in frequency-domain or the waveform inversion in time-domain, based on the regional waveform records. We applied the wavelet domain inversion method to determine mechanism of regional earthquake. Using the wavelet coefficients of different scales can give more information to constrain the inversion. We determined the mechanisms of three earthquakes occurred in California, the United States. They are consistent with the previous results (Harvard Centroid Moment Tensor and United States Geological Service). This proves that the wavelet domain inversion method is an efficient method to determine the source parameters of small and moderate earthquakes, especially the strong aftershocks after a large, disastrous earthquake.

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Authors and Affiliations

  1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China

    JinLai Hao & ZhenXing Yao

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  1. JinLai Hao
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  2. ZhenXing Yao
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Correspondence to JinLai Hao.

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Hao, J., Yao, Z. Determination of regional earthquake source parameters in wavelet domain. Sci. China Earth Sci. 55, 296–305 (2012). https://doi.org/10.1007/s11430-011-4341-8

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  • DOI: https://doi.org/10.1007/s11430-011-4341-8

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