Application of apparent stress in earthquake prediction

On the basis of the assumption that ω ^sup 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 fr...

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Bibliographic Details
Published in:Earthquake science 2007-07, Vol.20 (4), p.467
Main Authors: Liu, Hong-gui, Wang, Pei-ling, Yang, Cai-xia, Xu, Ge, Sun, Ye-jun, Chen, Zhang-li, Zheng, Si-hua
Format: Article
Language:English
Subjects:
Earthquake prediction
Earthquakes
Seismic activity
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Summary:On the basis of the assumption that ω ^sup 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.[PUBLICATION ABSTRACT]
ISSN:1674-4519
1867-8777
DOI:10.1007/s11589-007-0467-3