[1]LI Ping,JU Yaqian,XU Jianyuan,et al.Study on the Ground-motion Attenuation Relation in the Loess Region of China[J].Journal of Seismological Research,2023,46(04):586-592.[doi:10.20015/j.cnki.ISSN1000-0666.2023.0028
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
46
Number of periods:
2023 04
Page number:
586-592
Column:
Public date:
2023-07-15
- Title:
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Study on the Ground-motion Attenuation Relation in the Loess Region of China
- Author(s):
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LI Ping1; 2; JU Yaqian1; 2; XU Jianyuan1; 2; OUYANG Ganglei1
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(1.Institute of Disaster Prevention,Sanhe 065201,Hebei,China)(2.Key Laboratory of Earthquake Disaster Prevention and Risk Assessment of Hebei Province,Sanhe 065201,Hebei,China)
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- Keywords:
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the Loess region; ground motion; PGA; the Two-step Regression method; attenuation relations
- CLC:
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P315.9
- DOI:
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10.20015/j.cnki.ISSN1000-0666.2023.0028
- Abstract:
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In this paper,1 092 pieces of records of 141 seismic events occurring in the Loess region of China from 2001 to 2019 were sorted out.The higher values of the two horizontal peak accelerations are selected as the fitting values,and the Two-step Regression method is used to obtain the horizontal ground-motion attenuation relation in the Loess region of China.The distribution of residuals related with magnitude and distance is analyzed,and the attenuation relation proposed in this paper is compared with the ones proposed by other researchers.The results show that most of the observed values are within the range of ±1 standard deviation of the acceleration attenuation curve,and the model proposed in this paper can better reflect the peak acceleration's attenuation trend with distance in the Loess region of China.