【摘要】 在华北构造区划分出银川—河套地震带、汾渭地震带、河北平原地震带、东秦岭—大别地震带、郯庐地震带和长江下游—黄海地震带等6个地震带,并依据地震带构造特征和地震活动的差异性,将其中汾渭地震带划分为延庆—代县段、原平—襄汾段和侯马—渭河段;河北平原地震带划分为三河—涞水段、唐山—邢台段和安阳—成武段;郯庐地震带划分为开原—辽东湾段、渤海段、潍坊—嘉山段和嘉山—广济段;银川—河套地震带初步划分为银川段和河套段.同时,对河北平原地震带南界及其与东秦岭—大别地震带的关系,地震带不同区段存在的主震型和多震型特点,以及可能发生强震的危险区段进行了初步探讨.更多还原

【Abstract】 In this paper,the North China tectonic region is divided into 6 seismic belts,i.e.,Yinchuan-Hetao seismic belt,Fengwei belt,Hebei plain belt,East Qingling-Dabie belt,Tanlu belt and Downstream of Yangzi river-Yellow Sea seismic belt. Based on the difference in tectonic characteristics and seismic activity,the Fengwei seismic belt could be subdivided into Yanqing-Daixian segment,Yuanping-Xiangfen segment and Houma-Weihe segment; Hebei plain seismic belt into Sanhe-Laishui segment,Tangshan-Xingtai segment and Anyang-Chengwu segment; Tanlu seismic belt into Kaiyuan-Liaodong bay segment,Bohai segment,Weifang-Jiashan segment and Jiashan-Guangji segment; and Yinchuan-Hetao seismic belt is preliminarily subdivided into Yinchuan segment and Hetao segment. In addition,the problems such as the relation between southern border of Heibei Plain seimic belt and East Qinling-Dabie belt,the identification of seismic belt segments with different earthquake sequence type,e.g.,single mainshock type or multi-mainshock type,and the possible segments with potential strong earthquake,are tentatively discussed.更多还原