[1]WANG Wencai,YIN Zhiwen,TIAN Xiufeng,et al.Strong Motion Record Characteristics and Site Response Analysis of the Tonghai MS5.0 Earthquake Sequence in Yunnan province,2018[J].Journal of Seismological Research,2019,42(04):635-641.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
42
Number of periods:
2019 04
Page number:
635-641
Column:
Public date:
2019-12-15
- Title:
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Strong Motion Record Characteristics and Site Response Analysis of the Tonghai MS5.0 Earthquake Sequence in Yunnan province,2018
- Author(s):
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WANG Wencai; YIN Zhiwen; TIAN Xiufeng; XU Qin; SHI Wenbing; JIANG Zhijie
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(Lanzhou National Geophysical Observation and Research Station,Lanzhou 730000,Gansu,China)
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- Keywords:
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- CLC:
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P315.914
- DOI:
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- Abstract:
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A major earthquake of MS5.0 and aftershock of MS5.0 occurred successively on August 13 and 14,2018,Tonghai County,Yunnan Province.There are 41 and 30 strong motion stations which located in this region have been fully triggered in the main and aftershock.213 records of three-component acceleration were obtained by NSMONS.In this paper,we first calculate the peak accelerations of the 213 strong motion records.The basic characteristics of amplitude in this earthquake were analyzed according to the acceleration time-series curves and contour line of PGAs.Then,the attenuation relationship of PGAs with different distance was analyzed by comparing the observed data with some commonly used GMPE(ground motion prediction equations).In order to summarize the characteristics of response spectrum,we compare the acceleration response spectra of some typical stations with the designed spectrum.The HVSR method has been used to analyze site effect and judge whether nonlinear response occur of 3 typical stations with main and multiple aftershocks records.