川滇地区强震前流体异常特征与预测指标体系初探

Abstract

Abstract: In order to monitor situations of M_S≥7.0 earthquakes in Sichuan-Yunnan region in the next few years,we systematically analyzed underground fluid precursory anomaly characteristics before M_S≥6.0 earthquakes in Sichuan-Yunnan region from 1976 to 2012 from Earthquake Cases In China. Meanwhile,these cases are analyzed by using the research results regarding information characteristics of ground fluid precursors in the Key Projects of the Eleventh Five Year Plan. And then, in-depth analyses of characteristics of the precursory information in the region are also carried out. The results show that there exist some accelerations, coordination of time and space on the mass and other characteristics before strong earthquakes in this area. At last, we have tried to give its adjacent region and summarized the prediction index,and we hope that can provide some statistical bases for earthquake prediction in the future.

Key words: Fluid anomaly, Prediction index, Earthquake prediction, The Sichuan-Yunnan region

CLC Number:

P315.7

WANG Jun, SHAO Zhi-gang, SUN Xiao-long, WANG Yi-xi, XIANG yang, WANG Xi-long. A Prerliminary Study of Subsurface Fluid Precursors and Prediction Index before Strong Earthquakesin Sichuan-Yunnan region[J]. EARTHQUAKE, 2016, 36(4): 109-119.

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A Prerliminary Study of Subsurface Fluid Precursors and Prediction Index before Strong Earthquakesin Sichuan-Yunnan region

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