Risk Analysis and Strong Ground Motion Characteristics of Ludian Ms 6.5 Earthquake

被引：0

作者：

Qiao, Sen ^{[1
]}

Chen, Xueliang ^{[1
]}

Liu, Aiwen ^{[1
]}

Wen, Zengping ^{[1
]}

Li, Xiaojun ^{[1
]}

Li, Zongchao ^{[1
]}

Li, Tiefei ^{[1
]}

机构：

[1] China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China

来源：

PROCEEDINGS OF THE 7TH ANNUAL MEETING OF RISK ANALYSIS COUNCIL OF CHINA ASSOCIATION FOR DISASTER PREVENTION | 2016年 / 128卷

基金：

中国国家自然科学基金;

关键词：

Ludian earthquake; Strong ground motion; Disaster characteristic; Risk analysis;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

There was an earthquake hit Ludian county, Yunnan province on August 3, 2014, and the seismogenic fault was the North-West Baogunao-Xiaohe Fault. The magnitude of the surface wave magnitude (Ms) was 6.5, not so large, but the earthquake caused severe casualties. The main-shock strong ground motions were recorded by 7 observation stations. Longtoushan Finance Office station located in the epicenter area perfectly recorded throughout the whole event, and the PGA of this record in EW direction is 948.5cm/s(2), which is nearly 1g (981cm/s(2)). The horizontal component of ground motion observation records are decomposed and synthesized in accordance with the direction of parallel to the seismogenic fault and the direction of perpendicular to the seismogenic fault. Analysis results showed that the attenuation of PGA(peak ground acceleration) in NW-SE direction is slower than that in NE-SW direction. The intensity recorded by the strong ground motion was basically in accordance with the severity of earthquake disaster in the around area.

引用

页码：368 / 373

页数：6