华北南三省小震频度涨落与强震幕式活动的时序关联  

MICROEARTHQU-AKES’FREQUENCY FLUCTUATION IN THE AREA OF 35°~37°N,113°~115°E WITH EPISODIC ACTIVITY OF STRONG EARTHQUAKES

作　　者：王泽皋[1] 乔子云[1] 王银芝[1] 郭妍[1] 张跃刚[1] 

机构地区：[1]河北省地震局,石家庄050021

出　　处：《内陆地震》2000年第4期289-296,共8页Inland Earthquake

摘　　要：根据华北晋、冀、豫交界地区 (φN3 5°～ 37°,λE113°～ 115°范围 ,简称南三省 )小地震月频度演变特点 ,讨论了中国大陆及边邻 MS≥ 7.0、全国 MS≥ 6.0、和华北地区 (φN3 0°～ 4 2°,λE10 5°～ 12 5°) 4.0≤MS≤ 5.9强震活动幕的时序关联性。指出南三省的小震频度演变异常可以作为华北与全国强震幕式活动的前兆 ,为华北地区的中期动态趋势预测提供较为可靠的背景参考。According to the evolution feature of microearthquakes' monthly frequency in Nansan sheng,the joint area of Shanxi,Hebei and Henan Provinces in China (35°～37°N,113°～115°E),we discussed the episodic chronogenesis association of M\-S≥7.0 strong earthquakes in China mainland and its vicinity, M\-S≥6.0 ones in China and 4.0≤M\-S≤5.9 ones in the area of 30°～42°N, 105°～125°E. We think that the anomalies of the microearthquakes' frequency evolution in this region may be the precursors of strong earthquakes' episodic activity in the north and all of China. These anomalies can provided reliable reference for the medium term dynamic earthquake tendency prediction in North China.

关 键 词：小震活动 地震频度 地震幕 地震前兆 时序关联 

分 类 号：P315.75[天文地球—地震学]