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Acoustic emission analysis to reveal the process of slow earthquakes caused by fluid Injection

Publicly Offered Research

Project AreaScience of Slow to Fast Earthquakes
Project/Area Number 24H01027
Research Category

Grant-in-Aid for Transformative Research Areas (A)

Allocation TypeSingle-year Grants
Review Section Transformative Research Areas, Section (II)
Research InstitutionHokkaido University

Principal Investigator

直井 誠  北海道大学, 理学研究院, 准教授 (10734618)

Project Period (FY) 2024-04-01 – 2026-03-31
Project Status Granted (Fiscal Year 2025)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2025: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2024: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords微小破壊 / スロー地震 / 室内実験 / 流体
Outline of Research at the Start

普通の地震(Fast地震)に比べて低周波が卓越する地震(Slow地震)は,流体が原因で発生すると考えられている.Slow地震の特徴を調べるため,実験室において岩石試料に対して流体を注入した際に生じた破壊を解析することでSlow地震を特定し,その性質を調べる.機械学習処理などを活用し,高い分解能で解析することで,岩石内で生じた現象を明らかにする.

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Published: 2024-04-05   Modified: 2025-06-20  

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