Site Amplifications in the Affected Area by the 2024 Noto Peninsula Earthquake: Case Studies in Wajima and Uchinada Areas

Abstract

Site amplifications in affected areas in Wajima city and Uchinada town are evaluated to contribute to the investigation of the disaster mechanism during the 2024 Noto Peninsula earthquake. In the downtown area of Wajima, the ground consists of about 25 m of soft soil. The ground may have amplified the earthquake ground motions. Since the observation records indicate a non-linear response of the soil ground, a more detailed analysis is required. In Uchinada town, aftershock observations were carried out at the location where lateral flow occurred. It was found that the site amplifications were different from those of the surrounding seismic stations.