Abstract
On the basis of the assumption that ω 2 model accords with source displacement spectra of moderate-small shocks, we calculate the apparent stress values of 1 020 moderate-small shocks recorded by the Digital Seismic Network of Yunnan Province by using the low-frequency flat level and corner frequencies. The results show that the apparent stress is of good significance in earthquake prediction. The moderate-small shock with apparent stress larger than 0.9 MPa can be used as a referential index to predict moderate-strong earthquakes in Yunnan area. And its relevant predictability evaluation (R value) has a high confidence level.
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Foundation item: Project of National Natural Science Foundation (40574016), Joint Seismological Science Foundation of China (104047), and Science and Technological Planning Item of Social Development of Jiangsu Province (BS2005069).
Contribution No.07FE3012, Institute of Geophysics, China Earthquake Administration.
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Liu, Hg., Wang, Pl., Yang, Cx. et al. Application of apparent stress in earthquake prediction. Acta Seimol. Sin. 20, 467–476 (2007). https://doi.org/10.1007/s11589-007-0467-3
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DOI: https://doi.org/10.1007/s11589-007-0467-3