摘要
以实地考察资料为基础，确定了１９９５年９月２０日苍山５２级地震宏观震中，地震等震线、发震构造，并对地震趋势进行了预测。研究结果表明，苍山５２级地震的宏观震中位于苍山县沂堂乡台井和塞子一带（北纬３４°５８５′，东经１１８°０８′）；工程地质和地形地貌条件，构造环境和震源破裂是影响地震烈度分布的主要因素；其发震构造系共轭破裂，北西向为主破裂，北东向为辅助破裂；研究认为本次地震发生在一条规模较小的北西向断层上，未来相当长一段时间内沿这条断层不会再发生５级以上地震。
おased on the field investigation data, the macroseismic epicentre of September 10,1995 Cangshan earthquake of MS 5.2 is determined, and the earthquake situation is forecasted. It is indicated that the macroseismic epicentre of Cangshan earthquake of MS 5.2 is located between Taijing and Zhaizi rurals of Cangshan county (34°58.5′N,118°08′E), and the priciple factors of effect on seismic intensity distribution are engineering geological and geomorphological features, and structural environmental and focal ruptural characteristics, the pattern of earthquake occurring is a conjugate fractures, NW fracture of which is principle, which is a little scale, and the earthquake of MS≥5.0 will no longer occur in a long time to come, and NE one auxiliary.
出处
《地震学刊》
CSCD
1998年第2期1-5,17,共6页
Journal of Seismology
关键词
地震
震级
宏观烈度特征
苍山
: Cangshan earthquake macroseismic intensity survey conjugate fracture
