茅东断裂带中强地震的平均重复间隔研究

本文根据茅东断裂带地质调查、考古、地壳形变、历史地震和现今地震等资料,采用地质方法和Brune方法,分别计算第四纪以来各时段茅东断裂带年平均滑动速率.并据此选用Wallace.R.E和莫尔纳Molnar.P方法进行平均重复间隔计算,结果表明:中强地震重复间隔数十至百余年,原地重复率达89%.在今后一段时间该断裂带仍有中强地震发生的可能性.

STUDIES ON EARTHQUAKE RECURRENCE INTERVALS ALONG THE EASTERN FAULT ZONE OF MAOSHAN

Basis of the data of geological surveying,crustal deformation,earthquakse,using the methods of geology and seismology that was given by Brune J.N.the average slip-rate have been calculated annually since the Quaternary period,along the Eastern fault zone of Maoshan. Based on above mentioned the average slip-rate,by means of the formula and were given by Molnar P.and Wallace R.E.,the earthquakse recurrence intervals (T_Mo,R_t) also have been Calculated on the fault zone,in this paper. These Calculation results show that it is possible that a few mlddle-strong earthquakes shall be recur in the near future.