Estimation of Source, Path and Site Effects of the 2018 Hokkaido Eastern Iburi Earthquake

Yusuke TOMOZAWA, Kenichi KATO, Kiichiro NOJIRI
2019 Journal of Japan Association for Earthquake Engineering  
We estimated source spectra, Q value and site amplification factors of the source region of the 2018 Hokkaido Eastern Iburi Earthquake by using spectral inversion analysis. 54 . was obtained in the source region. At HKD126, around which the building damage was severe, the site amplification factor from 1 to 3 Hz was about 10 and larger than surrounding sites. The short-period level of the main shock was two times larger than conventional research. The stress drop slightly showed focal depth
more » ... wed focal depth dependency.
doi:10.5610/jaee.19.4_170 fatcat:txsztnbzwvh2hb7lzfwhofpg3i