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云南省单台地震预报６年报准了１２次５．２～７．３级地震。总结了反映孕震过程的矢量凹形、应力凹形、地电凹形等３种凹形震兆，阐述了水汞、水氡突跳，形变相关系数和地磁最大相关系数等前兆图像及其预报作用。认为：按照以场求源的思路，追踪孕震过程，是提高地震预报水平的有效途径。
A single earthquake prediction in Yunnan Province has reported 12 5.2-5.3 earthquakes in 6 years. Three kinds of concave-shaped shock truncations, such as vector concave, stress concave and geoelectric concave, which reflect the process of seismogenic process, are summarized. Precursory images such as water mercury, water radon kurtosis, deformation correlation coefficient and the maximum correlation coefficient of geomagnetic field are described Forecasting effect. It is considered that tracking the seismogenic process according to the idea of field seeking is an effective way to improve the earthquake prediction level.