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采用形变速率、静压订正及固体潮调和分析等方法从多种形变资料中提取粤闽交界地区地震形变的中期前兆信息，并据此研究了形变异常的特征。最后，从形变机理、异常信息合成及信息可信度评估等方面讨论了该区地震形变前兆的可信度。认为该区震前形变速率及地壳物性等反常变化可视作地震形变的中期前兆，震兆异常具有准同步群体性、发展阶段性和空间分布密集性等异常时空分布特征，震兆可信度达０．５以上
The deformation precursory information of the seismic deformation in the junction of Guangdong, Fujian and Fujian Provinces was extracted from various deformation data using deformation rate, static pressure correction and solid tide harmonic analysis, and the characteristics of deformation anomalies were studied. Finally, the credibility of seismic deformation precursors in this area is discussed from the aspects of deformation mechanism, synthesis of anomalous information and assessment of information credibility. It is considered that the anomalous change such as deforma- tion rate and crustal physical property before the earthquake can be regarded as the medium-term precursor of the earthquake deformation. The anomalous earthquake anomalies have the characteristics of quasi-synchronous population, stages of development and spatial distribution, More than 0.5