[1]LIU Chen,LI Xiaojun,JING Bingbing,et al.Improved Method of Estimating PGV Using Pd for Earthquake Early Warning[J].Journal of Seismological Research,2019,42(04):608-615.
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Improved Method of Estimating PGV Using Pd for Earthquake Early Warning
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
42
Number of periods:
2019 04
Page number:
608-615
Column:
Public date:
2019-12-15
- Title:
- Improved Method of Estimating PGV Using Pd for Earthquake Early Warning
- CLC:
- P315.914
- DOI:
- -
- Abstract:
- Referring to PGV underestimation of great earthquake by PGV-Pd relation during earthquake early warning,we proposed an improved method of estimating PGV using Pd.Based on 314 strong ground motion records of the Wenchuan aftershocks,the Lushan earthquake and its aftershocks,the Kumamoto earthquake and its aftershocks,a 3s-10s time window of the relationship between displacement amplitude Pd and peak velocity PGV of earthquake is analyzed.Comparing the analysis results with 163 sets of strong ground motion records of the Chi-Chi earthquake and the Wenchuan earthquake,we presents a method for PGV estimation by Pd.When Pd is greater than a set threshold,two kinds of estimating results,high and general,are given for reference to users and automatic judging systems,and two schemes are designed to give the overestimation results.Through comparison among our relations and previous studies,as well as residual analysis of our relations,we come to the conclusion of a high and general estimation suggestion.
- References:
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Last Update:
2019-12-15