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Ground motion prediction equation for the Kathmandu Valley, Nepal based on strong motion records during the 2015 Gorkha Nepal earthquake sequence

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Title: Ground motion prediction equation for the Kathmandu Valley, Nepal based on strong motion records during the 2015 Gorkha Nepal earthquake sequence
Authors: Mori, Takuho Browse this author
Shigefuji, Michiko Browse this author →KAKEN DB
Bijukchhen, Subeg Browse this author
Kanno, Tatsuo Browse this author →KAKEN DB
Takai, Nobuo Browse this author →KAKEN DB
Keywords: 2015 Gorkha Nepal earthquake sequence
Long-period ground motion
Kathmandu Valley
Site amplification
Ground motion prediction equation
Bedrock depth
Issue Date: Aug-2020
Publisher: Elsevier
Journal Title: Soil Dynamics and Earthquake Engineering
Volume: 135
Start Page: 106208
Publisher DOI: 10.1016/j.soildyn.2020.106208
Abstract: 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.
Rights: https://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article
URI: http://hdl.handle.net/2115/78975
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 高井 伸雄

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