地震研究

2011年3月10日盈江5.8级地震Ⅷ度区烈度评定探讨^*

周光全,非明伦,谢英情,卢永坤,施伟华

(云南省地震局,昆明 650224)

关键词：极震区; 烈度; Ⅷ度区; 评定; 盈江地震

Discussion of the Intensity Ⅷ of the M_S5.8 Yingjiang Earthquake on Mar.10,2011

ZHOU Guang-quan,FEI Ming-lun,XIE Ying-qing,LU Yong-kun,SHI Wei-hua

(Earthquake Administration of Yunnan Province,Kunming 650224,Yunnan,China)

Keywords：meizoseismal area; Intensity Ⅷ area; survey; Yingjiang Earthquake

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2011年3月10日,云南省德宏傣族景颇族自治州盈江县发生5.8级地震。宏观震中位于盈江县城—盈江农场一带,与微观震中基本一致。调查发现,极灾区有房倒屋塌、地表开裂、喷砂冒水、工业构筑物破坏等现象。通过对这些震害现象的调查,根据《中国地震烈度表》(GB/T 17742—2008)的相关判别指标,将本次地震最高烈度评定为Ⅷ度,依据充分,符合国家标准。

On Mar.10,2011,an earthquake with M_S5.8 occurred in Yingjiang County,Yunnan Province.Its macroscopic epicenter is located in the area from Yingjiang County Town to Yingjiang Farm,according with its microseismic epicenter determined through the seimograph.There are collapsed buildings,ground fissures,sandboils and waterspouts,damaged industrial structure and so on in the meizoseismal area.On the basis of the on-the-spot investigation of these seismic hazards,and in the light of the guidelines of Chinese Intensity Table(GB/T 17742-2008),we hold that the maximum intensity of the earthquake is Ⅷ.

引言
1 现场调查
2 地震动观测
3 结论与认识

图1 盈江5.8级地震烈度分布<br/>Fig.1 Intensity distribution of Yingjiang MS 5.8 Earthquake

图1 盈江5.8级地震烈度分布
Fig.1 Intensity distribution of Yingjiang MS 5.8 Earthquake

图2 大盈江河堤路面开裂<br/>Fig.2 Ground fissures on the bank of Dayingjiang River

图2 大盈江河堤路面开裂
Fig.2 Ground fissures on the bank of Dayingjiang River

图3 大盈江南岸喷砂冒水<br/>Fig.3 Sandboils and waterspouts on the southern bank of the Dayingjiang River

图3 大盈江南岸喷砂冒水
Fig.3 Sandboils and waterspouts on the southern bank of the Dayingjiang River

图4 贺哈村喷砂冒水、电杆沉陷<br/>Fig.4 Sandboils,waterspouts and electric pole downpunching in Heha Village

图4 贺哈村喷砂冒水、电杆沉陷
Fig.4 Sandboils,waterspouts and electric pole downpunching in Heha Village

图5 天缘超市框架结构楼房倒塌<br/>Fig.5 Frame structure building collapsed

图5 天缘超市框架结构楼房倒塌
Fig.5 Frame structure building collapsed

图6 玉锦公司砖混结构楼房底层、二层坍塌<br/>Fig.6 Ground floor and the second floor of a masonry-structure building collapsed

图6 玉锦公司砖混结构楼房底层、二层坍塌
Fig.6 Ground floor and the second floor of a masonry-structure building collapsed

图7 贺费村砖木结构民房倒塌<br/>Fig.7 Post and panel structure buildings collapsed

图7 贺费村砖木结构民房倒塌
Fig.7 Post and panel structure buildings collapsed

图8 土木结构民房倒塌<br/>Fig.8 Timber frame structure buildings collapsed

图8 土木结构民房倒塌
Fig.8 Timber frame structure buildings collapsed

表1 盈江城区房屋抽样调查一览表<br/>Tab.1 Building survey samples in Yingjiang urban area

表1 盈江城区房屋抽样调查一览表
Tab.1 Building survey samples in Yingjiang urban area

表2 简易房屋各破坏等级对应的震害指数(I)<br/>Tab.2 Seismic damage index of each damage class of simple building(I)

表2 简易房屋各破坏等级对应的震害指数(I)
Tab.2 Seismic damage index of each damage class of simple building(I)

表3 非简易房屋各破坏等级对应的震害指数(I)<br/>Tab.3 Seismic damage index of each damage class of non-simple building(I)

表3 非简易房屋各破坏等级对应的震害指数(I)
Tab.3 Seismic damage index of each damage class of non-simple building(I)

表4 盈江城区简易房屋破坏比(%)及震害指数(I)<br/>Tab.4 Damage ratio and seismic hazard index(I)of simple building in Yingjiang urban area

表4 盈江城区简易房屋破坏比(%)及震害指数(I)
Tab.4 Damage ratio and seismic hazard index(I)of simple building in Yingjiang urban area

表5 盈江城区非简易房屋破坏比(%)及震害指数(I)<br/>Tab.5 Damage ratio and seismic hazard index(I)of non-simple building in Yingjiang urban area

表5 盈江城区非简易房屋破坏比(%)及震害指数(I)
Tab.5 Damage ratio and seismic hazard index(I)of non-simple building in Yingjiang urban area

表6 Ⅷ度区农村简易房屋抽样调查数据及破坏比<br/>Tab.6 Survey data and damage ratio of simple building in countryside with intensity Ⅷ

表6 Ⅷ度区农村简易房屋抽样调查数据及破坏比
Tab.6 Survey data and damage ratio of simple building in countryside with intensity Ⅷ

表7 Ⅷ度区农村非简易房屋抽样调查数据及破坏比(%)<br/>Tab.7 Survey data and damage ratio of non-simple building in countryside with intensity Ⅷ

表7 Ⅷ度区农村非简易房屋抽样调查数据及破坏比(%)
Tab.7 Survey data and damage ratio of non-simple building in countryside with intensity Ⅷ

表8 Ⅷ度区农村简易房屋破坏比(%)及震害指数(I)<br/>Tab.8 Damage ratio and seismic hazard index(I)of simple-building in countryside with intensity Ⅷ

表8 Ⅷ度区农村简易房屋破坏比(%)及震害指数(I)
Tab.8 Damage ratio and seismic hazard index(I)of simple-building in countryside with intensity Ⅷ

表9 Ⅷ度区农村非简易房屋破坏比(%)及震害指数(I)<br/>Tab.9 Damage ratio and seismic hazard index(I)of non-simple building in countryside with intensity Ⅷ

表9 Ⅷ度区农村非简易房屋破坏比(%)及震害指数(I)
Tab.9 Damage ratio and seismic hazard index(I)of non-simple building in countryside with intensity Ⅷ

图9 口径为1.7 m的烟囱按Ⅶ度设防,在本次地震中倒塌<br/>Fig.9 A chimney 1.7 m in diameter with seismic fortification intensity 7 broke down

图9 口径为1.7 m的烟囱按Ⅶ度设防,在本次地震中倒塌
Fig.9 A chimney 1.7 m in diameter with seismic fortification intensity 7 broke down

图10 口径为2.5 m的大烟囱按Ⅷ度设防,在本次地震中断裂<br/>Fig.10 A chimney 2.5 m in diameter with seismic fortification intensity 8 ruptured

图10 口径为2.5 m的大烟囱按Ⅷ度设防,在本次地震中断裂
Fig.10 A chimney 2.5 m in diameter with seismic fortification intensity 8 ruptured

图11 3月11日12时01分42.7秒MS2.1地震在盈江农场的加速度记录<br/>Fig.11 Ground accelation record of the MS2.1 earthquake at 12:01:42.7 on Mar.11 in a farm in Yingjiang

图11 3月11日12时01分42.7秒MS2.1地震在盈江农场的加速度记录
Fig.11 Ground accelation record of the MS2.1 earthquake at 12:01:42.7 on Mar.11 in a farm in Yingjiang

表10 盈江MS5.8级主震与MS2.1余震的相关参数<br/>Tab.10 Parameters of Yingjiang MS 5.8 main-shock and an after-shock with MS2.1

表10 盈江MS5.8级主震与MS2.1余震的相关参数
Tab.10 Parameters of Yingjiang MS 5.8 main-shock and an after-shock with MS2.1

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期刊信息

地震研究
JOURNAL OF SEISMOLOGICAL RESEARCH
（季刊）

主　　管云南省地震局

主　　办云南省地震局

编辑出版《地震研究》编辑部

主　　编皇甫岗

副主编王彬毛玉平秦嘉政张建国杨周胜

地　　址昆明市北市区北辰大道

邮　　编 650224

电　　话 0871-65747189

标准刊号 ISSN 1000-0666
CN 53-1062/P

备注

引言

1 现场调查

2 地震动观测

3 结论与认识

期刊信息