Abstract An important problem in long-term prediction and seismic zonation analysis is how to evaluate the potential seismic risk of weakly active faults in weak seismic background. The authors refer to the method that Wen advances to estimate magnitudes of maximum potential earthquakes in sub-areas of the moderately and weakly active faults in eastern Chinese mainland. We build the empirical relationship between the maximum magnitudes Mmax and the at/b values of the sub-areas’ frequency-magnitude relationships. With the empirical relationship, the upper-limits Mu of the Danjiang fault in Laohekou fault area is MS6.0. The average interval recurrence time and the probabilities of destructive earthquake on the fault is evaluated with Possion model.
LIAO Wulin,ZHANG Lifen,LI Jinggang et al. Assessment of Seismic Risk of Weakly Active Faults in Weak Seismic Background Region: Taking Danjiang Fault as an Example[J]. jgg, 2017, 37(11): 1131-1135.
LIAO Wulin,ZHANG Lifen,LI Jinggang et al. Assessment of Seismic Risk of Weakly Active Faults in Weak Seismic Background Region: Taking Danjiang Fault as an Example[J]. jgg, 2017, 37(11): 1131-1135.