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Previous studies have shown that the active tectonic block boundaries in the Chinese mainland are the main belts and concentration areas of strong earthquakes occurring in the Chinese mainland.It is essential to carry out follow-up analysis of strong earthquake risk of active tectonic block boundaries.In this paper,we carry out the analysis on the tendency of strong earthquakes along each active tectonic block boundary from three aspects respectively,including the evolutionary characteristics of the Load/Unload Response Ratio time series,the probability method based on the log-normal distribution function,and variation of b value.The estimation of strong earthquake criticality on each active tectonic block boundary is done based on the evolutionary characteristics of the Load/Unload Response Ratio time series,the cumulative probability and conditional probability,and the decrease of the b value.Finally,according to the results of analyses on the above three aspects,the potential strong earthquake areas in the forthcoming 5 years in the Chinese mainland are discussed.
Previous studies have shown that the active tectonic block boundaries in the Chinese mainland are the main belts and concentration areas of strong earthquakes occurring in the Chinese mainland. It is essential to carry out follow-up analysis of strong earthquake risk of active tectonic block boundaries. In this paper, we carry out the analysis on the tendency of strong earthquakes along each active tectonic block boundary from three factors respectively, including the evolutionary characteristics of the Load / Unload Response Ratio time series, the probability method based on the log-normal distribution function, and variation of b value. The estimation of strong earthquake criticality on each active tectonic block boundary is done based on the evolutionary characteristics of the Load / Unload Response Ratio time series, the cumulative probability and conditional probability, and the decrease of the b value.Finally, according to the results of analyzes on the above three aspects, the potential strong earthquake areas in the forthcoming 5 years in the Chinese mainland are discussed.