Ground Motion Evaluation at Janes' Residence Damaged by the 2016 Kumamoto Earthquake Sequence based on Aftershock Observations

Abstract

Janes' Residence in Chuo Ward, Kumamoto City, Japan which is a prefectural important cultural property was collapsed due to the foreshock and the main shock of the 2016 Kumamoto earthquake. In this study, to evaluate ground motions at the collapse site, temporary aftershock observation was conducted at the site and Suizenji Governor Station site. The result indicates that the ground motions at the collapse site were similar to those at the station site. At Suizenji Governor Station, where waveforms during the foreshock and the main shock were not released, the waveforms were estimated based on the substitution method for site amplification factor.