RETRACTED: 2016年マウント 7.1の熊本地震でアソ火山によって停止されたコセイスミック断裂
A Lin1, T Satsukawa1, M Wang1
1Department of Geophysics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
まとめ
2016年の熊本地震は,ヒナグ・フタガワ断層地帯に沿って約40kmの表面破裂を引き起こした. 噴火はマグマによりアソのカルデラで停止し,潜在的な火山の危険性を強調した.
科学分野:
- 地理学
- 地震学
- 火山学
背景:
- 2016年の熊本地震 (Mw 7.1) は,日本の九州島で発生した.
- 地震に関連した表面破裂が観察されました.
- アソ・カルデラは,この地域の顕著な火山の特徴です.
研究 の 目的:
- 2016年の熊本地震の表面破裂の特徴と範囲を調査する.
- 地震破裂の拡散を制御する要因を理解する.
- アソ火山の火山の危険性を評価する.
主な方法:
- 表面破裂のフィールド調査
- 地震データを分析する
- アソのカルデラ周辺の 地質調査
主要な成果:
- ヒナグー・フタガワ・ストライク・スリップ・フォルト・ゾーンと新たに確認されたフォルトに沿って,約40キロメートルの表面破裂ゾーンが特定されました.
- コセシミック表面破裂はアソのカルデラに広がり,火山の円に影響を与えましたが,その内部で終了しました.
- アソ火山群の下にあるマグマの存在により,北東への破裂の拡散が停止した.
結論:
- 2016年の熊本地震の断裂の動態は,アソ火山のマグマ系の影響を受けた.
- カルデラ内の断層の終結は,地震活動と火山の過程の複雑な相互作用を示唆しています.
- アソ火山の近くの火山の危険性の再評価は,確認された地震的断層を考慮して正当化されています.
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