加卸载响应比理论用于矿震预测的初步研究

Abstract

Abstract: The LURR (Loading-Unloading Response Ratio) is an intermediate-term earthquake prediction approach that has shown considerable promise. High LUGG value usually could be observed prior to strong earthquakes several moths to a year or two so that it could be served as an indicator of strong natural earthquakes. In terms of LURR several earthquakes such as Northridge earthquake (1994-1-17, M6.7, California, USA), Kanto earthquake (1996-9-11, M6.6, Japan) and some earthquakes occurred in China have been successfully predicted. The variation of LURR has been calculated using the seismic data of Fangshan Coal Mine during the period from August 1992 to July 1993. There were 7 groups of mining induced earthquakes with magnitude equal to or larger than 2.1, the values of LURR were significantly larger than 1 (LURR≥2.9) prior to 5 groups among the 7 groups. These results suggest that LURR could be served as a precursor to predict the mining induced earthquake.

Key words: Mining induced earthquakes, Mid-term prediction, Loading-Unloading Response Radio (LURR)

CLC Number:

P315

YIN Xiang-chu, YIN Xun-fei, YU Huai-zhong, ZHANG Hui-hui, YAN Yu-ding. Preliminary study on mining induced earthquake prediction in terms of Loading-Unloading Response Ratio (LURR)[J]. EARTHQUAKE, 2004, 24(2): 25-30.

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Preliminary study on mining induced earthquake prediction in terms of Loading-Unloading Response Ratio (LURR)

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