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Statistical Tests of Load-Unload Response Ratio Signals By Lattice Solid Model: Implication To Tidal Triggering and Earthquake Prediction | |
Wang YC(王裕仓); Mora P; Yin C; Place D; Wang, YC (reprint author), Univ Queensland, Dept Earth Sci, QUAKES, Brisbane, Qld 4072, Australia. | |
Source Publication | PURE AND APPLIED GEOPHYSICS
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2004 | |
Volume | 161Issue:9-10Pages:1829-1839 |
ISSN | 0033-4553 |
Abstract | Statistical tests of Load-Unload Response Ratio (LURR) signals are carried in order to verify statistical robustness of the previous studies using the Lattice Solid Model (MORA et al., 2002b). In each case 24 groups of samples with the same macroscopic parameters (tidal perturbation amplitude A, period T and tectonic loading rate k) but different particle arrangements are employed. Results of uni-axial compression experiments show that before the normalized time of catastrophic failure, the ensemble average LURR value rises significantly, in agreement with the observations of high LURR prior to the large earthquakes. In shearing tests, two parameters are found to control the correlation between earthquake occurrence and tidal stress. One is, A/(kT) controlling the phase shift between the peak seismicity rate and the peak amplitude of the perturbation stress. With an increase of this parameter, the phase shift is found to decrease. Another parameter, AT/k, controls the height of the probability density function (Pdf) of modeled seismicity. As this parameter increases, the Pdf becomes sharper and narrower, indicating a strong triggering. Statistical studies of LURR signals in shearing tests also suggest that except in strong triggering cases, where LURR cannot be calculated due to poor data in unloading cycles, the larger events are more likely to occur in higher LURR periods than the smaller ones, supporting the LURR hypothesis. |
Keyword | Load-unload Response Ratio (Lurr) Lattice Solid Model (Lsm) Numerical Simulation Tidal Trigger Earthquake Prediction |
DOI | 10.1007/s00024-004-2534-1 |
Indexed By | SCI |
Language | 英语 |
WOS ID | WOS:000223745800002 |
WOS Keyword | LURR THEORY |
WOS Research Area | Geochemistry & Geophysics |
WOS Subject | Geochemistry & Geophysics |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/58472 |
Collection | 力学所知识产出(1956-2008) |
Corresponding Author | Wang, YC (reprint author), Univ Queensland, Dept Earth Sci, QUAKES, Brisbane, Qld 4072, Australia. |
Recommended Citation GB/T 7714 | Wang YC,Mora P,Yin C,et al. Statistical Tests of Load-Unload Response Ratio Signals By Lattice Solid Model: Implication To Tidal Triggering and Earthquake Prediction[J]. PURE AND APPLIED GEOPHYSICS,2004,161,9-10,:1829-1839. |
APA | 王裕仓,Mora P,Yin C,Place D,&Wang, YC .(2004).Statistical Tests of Load-Unload Response Ratio Signals By Lattice Solid Model: Implication To Tidal Triggering and Earthquake Prediction.PURE AND APPLIED GEOPHYSICS,161(9-10),1829-1839. |
MLA | 王裕仓,et al."Statistical Tests of Load-Unload Response Ratio Signals By Lattice Solid Model: Implication To Tidal Triggering and Earthquake Prediction".PURE AND APPLIED GEOPHYSICS 161.9-10(2004):1829-1839. |
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