本研究於台灣中央氣象局地震資料庫擷取地震資料，利用程式選取從1982 年至2012年的地震目錄進行分析，選取地震深度在30 公里以內之地震繪製地震分布圖，再利用程式篩選出地震弧線，且觀察所找到兩條最強弧線的交叉型態，我們以雙弧線有兩個交叉點稱之「最強地震圓弧雙交叉」，並將結果進行後一天的驗證，確保當時段之最佳地震弧雙交叉。 本研究的重點是探討不同的事件搜尋週期對極淺層最強地震圓弧雙交叉的強震預測能力的影響，我們集中分析短周期，即是以5 年內的事件搜尋週期(參數dy)為主，分別為dy=5、dy=4、dy=3、dy=2，再以有隔天確認的不完全交叉、隔天可確認的完全交叉，分析並比較各個搜尋週期預測後續大震天數(dt)的效果。;This research retrieved earthquake data from Central Weather Bureau(CWB),and use Matlab program to analysis earthquake catalog from 1982 to 2012.The earthquake event which depth is less than 30 kilometers are shown on the map,and then we use the matlab program to filter out the earthquake arc,and search for the intersection of the two strongest arcs.We called this “the strongest double intersection of circular arcs of earthquakes.”The research is focus on the impact of different event search cycles on the strong earthquake prediction ability of the strongest double intersection of cicular arcs of earthquakes in extremely shallow layers.We focus on analyzing the impact of short search cycles.we search event within 5 years,and then categorizing as incomplete intersection that can be confirmed by the next day,and the complete intersection that can be confirmed by the next day.Finally we compare the effects of different parameters dy on dt.
