【摘要】 2013年8月12日,西藏自治区左贡、芒康交界发生MS6.1级地震。本文在对此次地震灾区所有房屋建筑进行现场实地调查的基础上,重点分析了本次地震烈度等震线的分布情况,如形状、面积和范围等。同时,在介绍区域地震构造背景的基础上,根据震区活动构造、地震烈度等震线、地震序列、震源机制解结果等综合分析判定,澜沧江断裂带是左贡、芒康交界MS6.1级地震的主要发震构造。本文的初步研究成果不仅可以提高认识当地的发震构造条件,而且还有利于指导当地的抗震设防、防灾减灾等工作。更多还原

【Abstract】 The Zuogong-Mangkang MS6.1 earthquake occurred on August 12,2013 in Tibet.After investigation of all buildings in the earthquake zone,we analyzed the distribution of intensity isoseismal lines,including the shape,size and range.Combining the intensity isoseismal line,the earthquake sequence and the focal mechanism solution we concluded out that the activity of the Lan Cangjiang fault triggered the earthquake.Our results are valuable in understanding the seismogenic structure of Zuogong-Mangkang area,and is helpful in seismic fortification,disaster prevention,and hazard mitigation.更多还原