Axial Seamountでのインフレ予測行動と共同噴出変形
Scott L Nooner1, William W Chadwick2
1University of North Carolina Wilmington, Wilmington, NC 28403, USA. nooners@uncw.edu.
まとめ
Axial Seamountの海底変形モニタリングは,マグマ供給の増加と予測可能な噴火を明らかにしました. 2015年の噴火を予測し マグマの動きを詳細に記録しました
科学分野:
- 火山学
- 地理学
- 海洋地質学
背景:
- 火山での地形変形は 地下マグマの動きを示しています
- Axial Seamountの噴火活動はマグマ圧と膨張に関連しています.
研究 の 目的:
- 海底の変形データを分析し,マグマの供給とアクシアル海山での噴火の予測性を理解する.
- 海底ケーブル付き天文台を使って 火山の膨張と傾斜を リアルタイムで記録する
主な方法:
- 2011年から2015年にかけての海底変形測定の分析
- 新しい海底ケーブル付き観測所を使って 火山活動のリアルタイム監視
- 地下圧力の源を特定するための変形モデリング.
主要な成果:
- マグマの供給は2011年から2015年の間に4倍に増加しました.
- 2015年の噴火は 変形パターンに基づいて 予測されました
- 観測所では 噴火のダイナミクスを リアルタイムで記録しました
- 東部のカルデラの下には 圧力の源が急落していることが示されました
結論:
- Axial Seamountの噴火は膨張で予測可能であり,おそらく重要なマグマ圧によって引き起こされます.
- 火山噴火を監視し予測するための 効果的なツールです
- 地下変形データとモデリングは,マグマ貯水池の構造の洞察を提供します.
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