New characteristics of intensity assessment of Sichuan Lushan “4.20” Ms7.0 earthquake

The post-earthquake rapid accurate assessment of macro influence of seismic ground motion is of significance for earthquake emergency relief, post-earthquake reconstruction and scientific research. The seismic intensity distribution map released by the Lushan earthquake field team of the China Earth...

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Bibliographic Details
Published in:Earthquake Engineering and Engineering Vibration 2014, Vol.13 (Suppl 1), p.123-139
Main Authors: Sun, Baitao, Yan, Peilei, Chen, Xiangzhao
Format: Article
Language:English
Subjects:
Civil Engineering
Control
Dynamical Systems
Earth and Environmental Science
Earth Sciences
Geotechnical Engineering & Applied Earth Sciences
Vibration
Online Access:Get full text
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Summary:The post-earthquake rapid accurate assessment of macro influence of seismic ground motion is of significance for earthquake emergency relief, post-earthquake reconstruction and scientific research. The seismic intensity distribution map released by the Lushan earthquake field team of the China Earthquake Administration (CEA) five days after the strong earthquake ( M 7.0) occurred in Lushan County of Sichuan Ya’an City at 8:02 on April 20, 2013 provides a scientific basis for emergency relief, economic loss assessment and post-earthquake reconstruction. In this paper, the means for blind estimation of macroscopic intensity, field estimation of macro intensity, and review of intensity, as well as corresponding problems are discussed in detail, and the intensity distribution characteristics of the Lushan “4.20” M 7.0 earthquake and its influential factors are analyzed, providing a reference for future seismic intensity assessments.
ISSN:1671-3664
1993-503X
DOI:10.1007/s11803-014-0243-z