Ground Motion Evaluation at Yokoe Bridge site in Yatsushiro City for the Main Shock of the 2016 Kumamoto Earthquake

Abstract

Serious damage was caused to Yokoe Bridge in Yatsushiro City during the main shock of the 2016 Kumamoto earthquake. In this report, seismic waveforms during the 2016 main shock in the bridge were estimated using the site-effect substitution method. The site effect at the bridge was evaluated based on temporary seismic observations. Difference of the site effects between the bridge site and the present observation stations was also indicated.