川滇地区地下流体中短期前兆识别和区域性特征

Abstract

Abstract: In this paper, the features of medium-and short-term anomalies of ground flu-id in Sichuan-Yunnan region are systematically analyzed. Some methods fordiscerning these precursors are suggested and assessed by Rvaluation grading. Precursor information characteristics in Sichuan-Yunnan region, which shows precursory development by stages and acceleration in time, and shows swarming and assorting in space distribution, is ana-lyzed by using the re search results regarding information characteristics of ground fluid precursor in "Ninth Five-year Plan" key object. The common and different features of pre-cursors also are analyzed. The prediction indexsystem for three elements of an earthquake fitting to Sichuan-Yunnan region is presented.

Key words: Ground fluid, Middle-and short-termanomaly, Precursordiscrimination, Prediction index, Sichuan-Yunnan region

CLC Number:

P315.72+3

LIU Yao-wei, SHI Jin, PAN Shu-xin, CAO Ling-ling. Discrimination and regional features of medium-and short-term precursors of ground fluid in Sichuan-Yunnan region[J]. EARTHQUAKE, 2002, 22(1): 17-24.

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Discrimination and regional features of medium-and short-term precursors of ground fluid in Sichuan-Yunnan region

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