大屯火山群是臺灣本島內唯一一座活火山，雖然帶來豐沛的地熱資源，但將來倘若噴發絕對會造成大台北地區將近700萬人口的生命受威脅，因此，唯有更瞭解火山，才能有效降低災害造成的影響。
本研究基於中央氣象署、大屯火山群地區監測網及Formosa Array挑選在2019年及2020年地震活動度較高期間，約莫7個月的地震資料，首先使用RED-PAN (Real-time Earthquake Detection and Phase-picking with multi-task Attention Network) 是利用深度學習方法進行連續資料的地震偵測及波相判釋，接著使用反投影法（backprojection）及NonLinLoc將地震初步定位，再利用Weighted Template Matching Algorithm （WTMA）的方法，以被RED-PAN判斷為地震之波形作為模板，利用此模板對連續地震波形進行波形相似度的搜尋，尋找肉眼無法辨別的地震事件，建立更小規模的地震目錄，希望對地下細部構造有更好的瞭解，最後利用GrowClust3D相對重新定位方法，使地震依照其波形相似度及走時差分群定位。此外，使用地震規模較大事件之P波上下動，逆推大屯火山區域地震之震源機制解及應力場，以及計算b-value探討地震序列是否是一般地震或群震。
本研究希望從地震數量、時空分布、應力場等，瞭解大屯火山地區之孕震構造。研究結果顯示，我們NonLinLoc定位結果與大屯火山觀測站的地震目錄相近，相對定位後得到規模更小更完整的地震目錄，這對於構造分析很有幫助，例如，在大油坑及七星山底下有幾乎垂直的地震密集帶，這些地震密集帶可能成為未來岩漿噴發時的通道。大屯火山地區內整體的應力結果為以東南-西北方向上拉張的應力場。
本研究方法對於地體構造之分析或解釋有很大的幫助，此外，尋找群震位置、微震監測及地震危害度分析，對於地熱發展也至關重要。

The Tatun Volcanic Group, located in northern Taiwan, was significantly affected by back-arc extension about 800,000 years ago, resulting in extensive volcanic eruptions that covered the Tertiary sedimentary rocks. Currently, volcanic activity has not completely ceased, and there is a nearby fault, the Shanchiao Fault. Cising Mountain is less than 15 kilometers in a straight line from downtown Taipei, and the Greater Taipei area has a population of nearly 7 million. In the event of a volcanic eruption, it would undoubtedly cause severe economic losses and casualties.
To better understand the seismogenic structures during the peak seismic activity period from 2019 to 2020, we utilized several advanced techniques. These included using machine learning to pick seismic phases through the Real-time Earthquake Detection and Phase-picking with a Multi-task Attention Network (RED-PAN), the Weighted Template Matching Algorithm (WTMA), relative relocation (GrowClust3D), and stress inversion.
Our research results indicate that the NonLinLoc relocation results are consistent with the earthquake catalog of the Taiwan Volcano Observatory - Tatun. The earthquake catalog obtained after relative relocation is more refined and comprehensive, which is very beneficial for structural analysis. For instance, we discovered nearly vertical dense seismic zones beneath both Dayoukeng and Cising Mountain. These zones could potentially act as conduits for future magma eruptions.
Overall, the stress field in the Tatun Volcano area exhibits a southeast-northwest extensional stress, suggesting a significant tectonic influence on the region's volcanic activity.

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