研究結果

經分析後所得之樹狀圖,如圖 27 所示。可將震央在陸上與震央在 海上地震共16 筆事件，歸類區分為 5 個群組，依序分別為：

第1 群組 A070912、B070912、B100723、A080512 第2 群組 B090929、B091007、B110311

第3 群組 A060420、B070113、B061115、A09071 第4 群組 A050613、A071114、A100227

第5 群組 A050328、B041226

組別如(圖 28-36)第 1 群組至第 5 群組，依分析結果顯示：

(1)從各群組組合來看，地震震央位置在海上(B)或陸上(A)之電離 層全電子濃度變化無明顯之相關性。

(2)從各群組之組合分析後發現，雖地震事件震央發生於不同時 間、地點，但都有某種相關因素而被分為同群組組合，經以 震央地點比對觀察發現其中第 2 群組 B090929、B091007、

B110311，第 3 群組 A060420、B070113、B061115、A09071 第 4 群組 A050613、A071114、A100227，第 5 群組

A050328、B041226 等組別如 (圖 28-34)均位處於環太平洋 地震帶上。地震事件之震央發生於不同時間、地點，但電離 層全電子濃度(TEC)變化發現有些分組有較明顯之相關性，經 以震央地點比對關觀察發現，在同地域性之關係強烈，如第 4 群組 A050613、A071114、A100227，都是不同時間發生 地震，但震央都在智利(Chile)境內，而第 5 組 A050328、

B041226 也是不同時間發生地震但等震央都在蘇門達臘 (Sumatra)近海或陸地上，由此結果推論電離層全電子濃度 (TEC)變化相似度與震央地理位置之關係強烈。

25      20      15      10      5      0 

圖 27，分析後所得到的樹狀圖

第 1 群組

圖28，第 1 群組-1

圖29，第 1 群組-2

第 2 群組

圖30，第 2 群組-1

圖31，第 2 群組-2

第 3 群組

圖32，第 3 群組-1

圖33，第 3 群組-2

圖34，第 3 群組-3

第 4 群組

圖35，第 4 群組

第 5 群組

圖36，第 5 群組

第四章 結論與未來建議

法解決地震之預測瓶頸，但可提供相關研究之參考，期望在相關專家 學者努力不懈研究之下，提供地震前兆的可預測性，以減少地震所造 成的重大傷害。

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