永胜形变台记录到的澜沧-耿马地震的破裂过程  

BREAKING PROCESS OF LANCANG-GENGMA EARTHQUAKE RECORDED BY THE YONGSHENG DEFORMATION STATION

作　　者：王贤仁[1] 卢艳清[1] 

机构地区：[1]云南省地震局,650041

出　　处：《地壳形变与地震》1992年第4期37-43,共7页Crustal Deformation and Earthquake

摘　　要：本文以永胜地震台FSQ型浮子水管倾斜仪原始记录图形为基础,介绍了澜沧-耿马大震前后的地形变特征,探讨了大震破裂的前后过程。这些珍贵的原始记录图型,对今后该区7级以上大震的短临预报可能具有重要的参考价值。In this paper, based on the original records by the FSQ-Model buoy water tube tiltmeter at the Yongsheng deformation station, the variational characteristics of geodetic deformation before and after the Lancang-Gengma earthquake are described. According to microfracture and stick-slip theory , the breaking process before and after the destructive great earthquake is studied. Especially, while the main fracture is impending, rock body in the focal area becames very unstable,which is a very complicated phenomenon recorded by the FSQ tiltmeter. The precious original records could have some important reference value for the short-term and impending earthquake(M≥7.0)prediction in the area.

关 键 词：澜沧-耿马 地震 地壳 变形 破裂 

分 类 号：P315.2[天文地球—地震学]