EVALUATION OF DIFFICULT AREA FOR TSUNAMI EVACUATION IN HEGURA ISLAND, WAJIMA CITY, JAPAN, BASED ON STRONG MOTION ESTIMATION AND WALKING EXPERIMENT DURING THE NORTHERN NOTO PENINSULA SCENARIO EARTHQUAKE

Abstract

 During a northern Noto peninsula scenario earthquake, not only strong motion but also huge tsunami is attacked in Hegura Island, Wajima City, Japan. In this study, first, seismic waveforms in Hegura Island were estimated based on the asperity models with consideration of ground shaking characteristics by microtremor measurements. Next, walking times from the sites of interest to designated refuge place were measured based on in-situ investigation. Finally, using the non-evacuation time during the earthquake and the required evacuation time after the earthquake, we evaluated the difficult area for tsunami evacuation in Hegura Island taking into account the tsunami travel time.