DOI: 10.1007/s11069-020-04174-7
论文题名: Estimation of high-frequency seismic wave radiation on fault plane of 2008 Wenchuan earthquake based on improved empirical Green’s function
作者: Yin D. ; Dong Y. ; Liu Q. ; Chen Y. ; She Y.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 104, 期: 1 起始页码: 397
结束页码: 412
语种: 英语
中文关键词: Acceleration envelopes attenuation relationship
; Differential evolution
; High-frequency wave radiation area inversion
; Wenchuan earthquake
英文关键词: data inversion
; empirical analysis
; fault plane
; Green function
; numerical model
; seismic attenuation
; seismic source
; seismic wave
; Sichuan earthquake 2008
; China
; Sichuan
; Wenchuan
英文摘要: A new strategy for inversion of high-frequency wave radiation condition on the fault plan is exhibited. One-dimensional source model of large earthquake was divided into subfaults, each subfault contains a series of subsources to express high-frequency wave radiation. Envelope of large earthquakes can be expressed as a root-mean-squared with combination of envelope attenuation relationship from all subsources. The envelope attenuation relationship is considered as the empirical Green’s function. Distribution of subsources is estimated by envelope inversion. According to this method, the high-frequency (> 1 Hz) wave radiation areas of 2008 Wenchuan earthquake are generally inverted by the differential evolution using acceleration data from 27 near-field stations, while acceleration waveforms of the Lushan earthquake from 43 near-field stations were utilized to create attenuation envelope. High-frequency waves radiated in: (1) surface rupture areas, including Yingxiu and Beichuan areas; (2) close to the boundaries of asperities near Yingxiu, Yuejiashan, Beichuan and Nanba areas; (3) within 30 km length near the fault northeastern tip; (4) around Qingchuan area. © 2020, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168829
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: Faculty of Architecture and Civil Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu 223001, China; School of Civil Engineering of Suzhou, University of Science and Technology, Suzhou, Jiangsu 215011, China
Recommended Citation:
Yin D.,Dong Y.,Liu Q.,et al. Estimation of high-frequency seismic wave radiation on fault plane of 2008 Wenchuan earthquake based on improved empirical Green’s function[J]. Natural Hazards,2020-01-01,104(1)