加卸载响应比理论在中强地震（7＞M≥6）预测中的应用

Application of the Load-Unload Response Ratio Theory to the Earthquake Prediction for the Moderate Earthquakes

本文运用加卸载响应比理论对中强地震前的加卸载响应比的变化进行了研究。结果表明，中强地震前加卸载响应比明显上升，表现为三种不同的形态，持续时间为半年到两年。

In this paper, the variation in load-unload response ratio before the moderate earthquakes is analysed based on the theory of load-unload response ratio. The results show that the load-unload response ratio increases obviously before the moderate earthquakes, and there are three kinds of paterns in which the load-unload response ratio varies, and the obvious increase in the load-unload response ratio lasts from half a year to two years.