Improvement of Strong Motion Prediction Method Considering Seismic Basement Diffracted Waves from Shallow Inland Earthquakes

2014 Fiscal Year Final Research Report

• Project/Area Number: 25882001
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Natural disaster / Disaster prevention science
• Research Institution: Hokkaido University
• Principal Investigator: SHIGEFUJI MICHIKO 北海道大学, 理学(系)研究科(研究院), 非常勤研究員 (90708463)
• Project Period (FY): 2013-08-30 – 2015-03-31
• Keywords: 強震動 / 内陸浅発地震 / 地震基盤回折波 / 堆積平野 / 強震動予測

Outline of Final Research Achievements

Seismic basement diffracted waves are generated when the source is located near the sediment-seismic basement interface. In this study, we investigated effects of strong motion records on seismic basement diffracted waves excited by shallow inland earthquakes. We revealed the generation mechanism and characteristics of the seismic basement diffracted waves using strong motion simulation.

Free Research Field

地震工学