1976年龙陵地震区断裂活动性研究  

Activity of the Faults in the 1976 Longling M7.3,7.4 Earthquake Area

作　　者：王晋南[1] 王洋龙[1] 安晓文[1] 杨向东[1] 常祖峰[1] 

机构地区：[1]云南省地震局,昆明650224

出　　处：《地震研究》2006年第4期366-372,共7页Journal of Seismological Research

摘　　要：研究了1976年龙陵7·3、7·4级地震震区内的龙陵—瑞丽断裂、怒江断裂和腾冲断裂的第四纪构造环境和断裂活动性,得出腾冲火山断裂带具有新生火山、断裂构造作用,并对龙陵—瑞丽断裂、怒江断裂等的活动性产生影响和改造。提出了这一活动构造带内小型北西—北北西向断裂是龙陵强震发震构造的观点。There are three faults： the Longling -Ruili, Nujiang and Tengchong faults in the Longling area where the earthquakes with M7. 3, 7. 4 occurred in 1976. We studied their tectonic environment and activities in Quaternary Period. The result shows that the Tengchong-Longling volcanic-seismic belt has neogenic tectonization and it affects the activities of the Longling - Ruili and Nujiang faults. It is thought that the NW-or NNW-trending faults in the Tengchong volcanic-seismic belt should be the seismogenic structure of the 1976 Longling M7.3, 7.4 earthquakes.

关 键 词：龙陵地震 发震构造 断裂最新活动 地震区 

分 类 号：P315.2[天文地球—地震学]