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浙江文成-泰顺交界M4.2地震烈度调查与震害特征
马志江, 杨福平, 刘小龙, 孙海清, 陈涛, 李大卫
浙江省地震局, 杭州市古荡湾塘苗路7号 310013
摘要:
2014年9月12日至2014年10月31日,在浙江文成-泰顺交界的珊溪水库区域发生了最大震级M4.2地震。珊溪水库地区曾在2002、2006年分别发生过最大震级为ML3.9、ML4.6的地震序列,受这2次地震作用影响,震区房屋已经遭受了一定程度的破坏。2014年地震现场调查发现,震区震感明显,房屋受损现象较为普遍,震害具有叠加效应,出现了"小震致灾"的现象。另外,在震中附近的一些道路边坡上,地震还引发了规模较小的崩塌、滑坡等地质灾害。
关键词:  文成-泰顺交界M4.2地震  地震烈度  震害特征
DOI:
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基金项目:
Earthquake intensity and damage characteristics survey of M4.2 earthquake on the Wencheng-Taishun boundary zone,Zhejiang Province
Ma Zhijiang, Yang Fuping, Liu Xiaolong, Sun Haiqing, Chen Tao, Li Dawei
Earthquake Administration of Zhejiang Province, Hangzhou 310013, China
Abstract:
From September 12,2014 to October 31,2014,the Shanxi reservoir on the boundary zone of Wencheng-Taishun,Zhejiang Province had an earthquake swarm with the largest earthquake of M4.2. In 2002 and 2006,a ML3.9 and a ML 4.6 earthquake sequence occurred in the area. Influenced by previous 2 seismic activities,houses in the earthquake disaster area had suffered some damage. Through site survey of 2014 earthquake,we found the earthquake with M4.2 generated obviously seisesthesia in the region. Housing damage is more common,and the earthquake damage has the superposition effect,and there is a smaller-earthquakes-but-larger-damages effect. In addition,on some road slopes near the epicenter,the earthquakes also triggered smaller collapses,landslides and other geological hazards.
Key words:  M4.2 earthquake on the boundary zone of Wencheng-Taishun  Earthquake intensity  Earthquake damage characteristics