今日早上震央點歷史淺析 - 地球科學討論

By Ophelia
at 2015-04-21T00:51
at 2015-04-21T00:51
Table of Contents
※ [本文轉錄自 Gossiping 看板 #1LDEwqx0 ]
作者: bagasan (有錢比較重要) 看板: Gossiping
標題: [爆卦] 震央點歷史分析
時間: Mon Apr 20 20:18:57 2015
http://0rz.tw/G79me 氣象局文獻 請看11頁 有震度圖
1920年花蓮地震 (震央離今日6.3很接近)
各學者分析規模
MGR=8.0(Gutenberg and Richter,1954)
MS =8.0(Abe,1981,1984, Lee et al.1978)
M =8.3(Bath and Duda, 1979)
MH =8.3(徐明同, 1979)
ML =8.0(鄭世楠等, 1996)
舊新聞
http://www.ettoday.net/news/20130630/234117.htm
文摘
中央大學應用地質所教授李錫堤對此提出警告
「板塊每年8公分往西北方移動……」李錫堤說,發生在花蓮外海的板塊介面型地震,是
因為菲律賓板塊隱沒在歐亞板塊之下,每年以8公分的速度隱沒,能量就這樣不斷慢慢累
積,這股能量爆發出來的時候就會發生地震。
S
就像當年311大地震一樣,這種板塊介面型地震深度比較淺,而且因為能量累積的特性讓
它有週期性,透過板塊移動速率等各種因素,可以計算能量累積到何時就會爆發。以花蓮
外海的菲律賓板塊跟歐亞板塊來說,這個週期大概是100年爆發一次,而現在正值百年週
期。他說,1815年和1920年,花蓮外海各發生規模7.7和8.1地震,與昨天地震屬同類型,
顯示其出現頻率約為100年,推估近1、2年會再發生規模8以上地震。
如果教授講的屬實 那的確是進入他假設的週期裡了
不論是否 平日做好防震演練 剩下聽天由命
這不是要預測甚麼 只是要鑑往知來
--
作者: bagasan (有錢比較重要) 看板: Gossiping
標題: [爆卦] 震央點歷史分析
時間: Mon Apr 20 20:18:57 2015
http://0rz.tw/G79me 氣象局文獻 請看11頁 有震度圖
1920年花蓮地震 (震央離今日6.3很接近)
各學者分析規模
MGR=8.0(Gutenberg and Richter,1954)
MS =8.0(Abe,1981,1984, Lee et al.1978)
M =8.3(Bath and Duda, 1979)
MH =8.3(徐明同, 1979)
ML =8.0(鄭世楠等, 1996)
舊新聞
http://www.ettoday.net/news/20130630/234117.htm
文摘
中央大學應用地質所教授李錫堤對此提出警告
「板塊每年8公分往西北方移動……」李錫堤說,發生在花蓮外海的板塊介面型地震,是
因為菲律賓板塊隱沒在歐亞板塊之下,每年以8公分的速度隱沒,能量就這樣不斷慢慢累
積,這股能量爆發出來的時候就會發生地震。
S
就像當年311大地震一樣,這種板塊介面型地震深度比較淺,而且因為能量累積的特性讓
它有週期性,透過板塊移動速率等各種因素,可以計算能量累積到何時就會爆發。以花蓮
外海的菲律賓板塊跟歐亞板塊來說,這個週期大概是100年爆發一次,而現在正值百年週
期。他說,1815年和1920年,花蓮外海各發生規模7.7和8.1地震,與昨天地震屬同類型,
顯示其出現頻率約為100年,推估近1、2年會再發生規模8以上地震。
如果教授講的屬實 那的確是進入他假設的週期裡了
不論是否 平日做好防震演練 剩下聽天由命
這不是要預測甚麼 只是要鑑往知來
--
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地球科學
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