Abstract: As is well known the regional tectonic stress field is of great importance to the study of seismogenesis, earthquake prediction and earth dynamics. In this paper a synthetic analysis of current tensile stress field existing in the block-faulting tectonic areas of North China is given on the basis of observations and investigations of various phenomena such as seismogenetic structure, ground failure and seismic fault caused by a great earthquake, focal mechanism, the pattern of elastic rebound, the triggering of earthquake by tidal force and so on.In addition, the influence of the Pacific plate and the Indian plate on the tensile stress field in North China as a result of underthrusting of both plates under the Asian continent, is also discussed here, and it should be emphasized that the process occurring in the deep-seated portion of the earth crust must be of great importance to the tensile stress field present in North China.

摘要： 区域构造应力场对于研究地震成因、地震预报和地球动力学都具有重要的意义。本文根据华北的主要发震构造、大地震时的地面破裂和地震断层、震源机制、断层弹性回跳模式以及潮汐力对地震的触发关系等方面的资料,综合论述了华北块断构造区的现代引张应力场。最后探讨了太平洋板块和印度板块向亚洲大陆俯冲对华北引张应力场的影响。指出深部作用对华北引张应力场的实际意义。