Risk Analysis and Strong Ground Motion Characteristics of Ludian Ms 6.5 Earthquake
Sen Qiao, Xueliang Chen, Aiwen Liu, Zengping Wen, Xiaojun Li, Zongchao Li, Tiefei Li
Available Online November 2016.
- https://doi.org/10.2991/rac-16.2016.59How to use a DOI?
- Ludian earthquake; Strong ground motion; Disaster characteristic; Risk analysis
- 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/s2, which is nearly 1g (981cm/s2). 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.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Sen Qiao AU - Xueliang Chen AU - Aiwen Liu AU - Zengping Wen AU - Xiaojun Li AU - Zongchao Li AU - Tiefei Li PY - 2016/11 DA - 2016/11 TI - Risk Analysis and Strong Ground Motion Characteristics of Ludian Ms 6.5 Earthquake BT - 7th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention (RAC-2016) PB - Atlantis Press UR - https://doi.org/10.2991/rac-16.2016.59 DO - https://doi.org/10.2991/rac-16.2016.59 ID - Qiao2016/11 ER -