TY - JOUR
T1 - Ground motion prediction equation for the Kathmandu Valley, Nepal based on strong motion records during the 2015 Gorkha Nepal earthquake sequence
AU - Mori, Takuho
AU - Shigefuji, Michiko
AU - Bijukchhen, Subeg
AU - Kanno, Tatsuo
AU - Takai, Nobuo
N1 - Funding Information:
The present study was supported in part by Grant-in-Aid for Scientific Research from Japan Society for the Promotion of Science (JSPS KAKENHI) Grant Numbers JP17H06215 , 16K16370 , and also by the Science and Technology Research Partnership for Sustainable Development (SATREPS) from Japan Science and Technology Agency (JST) / Japan International Cooperation Agency (JICA) Grant Number JPMJSA1511 . We used Generic Mapping Tools (Wessel et al. [ 25 ]) for the drawing portions of the figures. We thank the reviewers for helping us significantly improve the paper.
Publisher Copyright:
© 2020 The Authors
PY - 2020/8
Y1 - 2020/8
N2 - Single-site ground motion prediction equations (GMPEs) for the acceleration response spectra of each site in the Kathmandu Valley was constructed using strong motion records of magnitude 5.0 through 7.3 the 2015 Gorkha Nepal earthquake aftershocks observed at eight sites in the Kathmandu Valley. The regression coefficient for the site term has a strong correlation with the bedrock depth at each site in the Kathmandu Valley. Therefore, a new GMPE applicable to the whole Kathmandu Valley in the long-period range of 1–10 s was generalized using the bedrock depth as a parameter. We applied this GMPE to the largest aftershock. Consequently, at each sedimentary station, the residuals of the predicted value by GMPE are smaller than those predicted by the existing GMPE, and the peaks of the observed response spectra are reproduced well.
AB - Single-site ground motion prediction equations (GMPEs) for the acceleration response spectra of each site in the Kathmandu Valley was constructed using strong motion records of magnitude 5.0 through 7.3 the 2015 Gorkha Nepal earthquake aftershocks observed at eight sites in the Kathmandu Valley. The regression coefficient for the site term has a strong correlation with the bedrock depth at each site in the Kathmandu Valley. Therefore, a new GMPE applicable to the whole Kathmandu Valley in the long-period range of 1–10 s was generalized using the bedrock depth as a parameter. We applied this GMPE to the largest aftershock. Consequently, at each sedimentary station, the residuals of the predicted value by GMPE are smaller than those predicted by the existing GMPE, and the peaks of the observed response spectra are reproduced well.
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U2 - 10.1016/j.soildyn.2020.106208
DO - 10.1016/j.soildyn.2020.106208
M3 - Article
AN - SCOPUS:85085261286
VL - 135
JO - Soil Dynamics and Earthquake Engineering
JF - Soil Dynamics and Earthquake Engineering
SN - 0267-7261
M1 - 106208
ER -