Development of a new rupture process analysis with dense array data

2014 Fiscal Year Final Research Report

• Project/Area Number: 24740314
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Solid earth and planetary physics
• Research Institution: Hot Springs Research Institute of Kanagawa Prefecture
• Principal Investigator: HONDA Ryou 神奈川県温泉地学研究所, その他部局等, 研究員 (80416081)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 震源過程解析 / バックプロジェクション法 / センブランス解析

Outline of Final Research Achievements

To estimate fault fracture process, we developed a new analysis based on the semblance analysis that is using the seismic waveform observed in arrays. In this study, we focused on two major problems. One is to estimate rupture process in accurately by introducing multiple arrays or a new calculation methods of semblance. And another is to make possible to estimate physical value such as amount of slip or seismic moment.　We applied the newly developed method to the 2011 Tohoku-Pacific Ocean Earthquake and 2007 Chuetsu-oki earthquake and confirmed our new method can be a useful tool for analyzing complex rupture process.

Free Research Field

地震学