岫岩M_S5.4与海城M_S7.3地震的共性和个性研究  

Analysis on Common and Particular Features between the Xiuyan M_S5.4 and Haicheng M_S7.3 Earthquakes

作　　者：李宇彤[1] 焦明若[2] 李芳[2] 

机构地区：[1]中国科学技术大学地球和空间科学学院,合肥230026 [2]辽宁省地震局,沈阳110031

出　　处：《地震研究》2005年第3期231-235,共5页Journal of Seismological Research

摘　　要：1999年海城—岫岩交界地区的MS5.4地震和1975年海城MS7.3地震在许多方面有相似之处,如具有大量的前震和前兆异常。但由于两者震级不同,所以前兆异常既有共性,又有其特殊性。通过对这两次地震前地震活动特点及前兆异常的对比分析,利用数值模拟方法模拟了两次地震共性和个性可能的形成机制。The Xiuyan M_S5.4 earthquake in 1999, occurred in the junction of Haicheng county and Xiuyan county in Liaoning province, is similar to the Haicheng M_S7.3 earthquake in 1975 at many aspects, such as abundant foreshocks and large quantities of precursory anomalies. Because of the different magnitudes of the two earthquakes, their pre-earthquake anomalies have both common and particular features. Through the comparative analysis of the foreshock activities and precursory anomalies between two earthquakes, we simulated the cause of common feature and particular feature between two earthquakes using numerical simulation method.

关 键 词：前兆异常 共性 个性 数值模拟 岫岩地震 海城地震 

分 类 号：P315.72[天文地球—地震学]