A METHOD OF ESTIMATING EARTHQUAKE GROUND MOTION USING MIROTREMOR H/V SPECTRAL RATIO

• NAKAMURA Masaki

  宮崎大学大学院資源環境科学

• HARADA Takanori

  宮崎大学土木環境工学科

• WANG Hongze

  (株)地震工学研究開発センター

• SAITOH Shouji

  (株)地震工学研究開発センター

Bibliographic Information

Other Title

• 常時微動H/Vスペクトル比を利用した強震観測点近傍の地震動推定法

Abstract

A method of estimating earthquake ground motion using microtremor horizontal to vertical (H/V) Fourier spectral ratio is presented. In this method, an earthquake ground motion is estimated from the earthquake ground motion recorded in the nearby observation site by using the correction factors which consist of the microtremor H/V spectral ratio of the both sites (the reference site and estimation site), the correction factor of the difference between the microtremor H/V spectral ratio and the earthquake ground motion H/V spectral ratio β, and the site factor of vertical ground motions γ. By using the observed microtremor records and earthquake ground motions in the Miyazaki and Fukuoka Prefectures, the presented estimation method is examined. And also the error of estimation of Fourier spectral amplitude of earthquake horizontal ground motion is discussed.

Journal

• Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

  Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 65 (1), 65-74, 2009

  Japan Society of Civil Engineers

Keywords

• microtremor
• estimation of earthquake ground motion
• H/V spectral ratio

Details

• CRID: 1390282680327775104
• NII Article ID: 130004961207
• DOI: 10.2208/jscejseee.65.65
• ISSN: 21854653
• HANDLE: 10458/6602
• Web Site: https://miyazaki-u.repo.nii.ac.jp/records/5500
• Data Source:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed