Abstract: On the basis of data from the field invesigation alongwith geophysical exploration and focal mechanism solutions,the authors have illustrated the tectonic framework of the crust and the characteristics of the tectonic stress field that had remained in the northern part of recent Henan area since Late Tertiary.A model has been developed for this crust segment that has been in a process of being deformed and the model has been put to test in many a way.The potential risk regions have been discussed for moderate and strong shocks.

摘要： 豫北地区近几年来一直被定为全国重点监视区之一,但中强地震可能发生在哪里?这是大家所关心的问题。作者根据野外实地调查,并结合前人的地质,石油、煤田勘探,地壳测深等资料,提出了该区的主要构造格架及其新活动特征,晚第三纪以来区域构造应力场,并由此推论了应力的集中部位,同时以大自然的各种客观现象为佐证,检验了这一推论的可靠性,探讨了中强地震可能发生的地区。