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The peak point of LURR and its significance
Author(s) -
Yin XiangChu,
Zhang LangPing,
Zhang Yongxian,
Peng Keyin,
Wang Haitao,
Song Zhiping,
Zhang Xiaotao,
Yuan Shuai
Publication year - 2009
Publication title -
concurrency and computation: practice and experience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.309
H-Index - 67
eISSN - 1532-0634
pISSN - 1532-0626
DOI - 10.1002/cpe.1514
Subject(s) - event (particle physics) , seismology , shock (circulatory) , geology , point (geometry) , scale (ratio) , geodesy , physics , geography , mathematics , geometry , cartography , medicine , quantum mechanics
The Load/Unload Response Ratio (LURR) value fluctuates around one during the early stage of the seismogenic process and then rises and reaches its peak point before the occurrence of a strong earthquake; the strong earthquake however does not onset at that time, but after the peak point LURR decreases sharply at the eve of the main shock before the final event outbreak. Thus, the peak point of LURR is ahead of the occurrence of an earthquake. We denote the lead time as T 2 . The discovery of peak point for LURR and the relationship between T 2 and magnitude M is of great significance as the peak point is usually easy to determine and then we can predict the occurrence time for the coming event according to Equation (3) so that we can enhance the precision of time for earthquake prediction in terms of LURR from ‘year’ scale to ‘month’ scale. The variation of LURR around the Wenchuan earthquake and its lesson to us are depicted in the paper. Copyright © 2009 John Wiley & Sons, Ltd.